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/**
* Whiteboard session manager
* Chatroom message handler
*
* Authors:
* David Yip <yipdw@rose-hulman.edu>
*
* Copyright (c) 2005 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include <glibmm/i18n.h>
//#include <boost/lexical_cast.hpp>
#include "message-stack.h"
#include "desktop-handles.h"
#include "document.h"
#include "util/ucompose.hpp"
#include "xml/node.h"
#include "jabber_whiteboard/typedefs.h"
#include "jabber_whiteboard/message-utilities.h"
#include "jabber_whiteboard/message-queue.h"
#include "jabber_whiteboard/jabber-handlers.h"
#include "jabber_whiteboard/defines.h"
#include "jabber_whiteboard/session-manager.h"
#include "jabber_whiteboard/node-tracker.h"
#include "jabber_whiteboard/chat-handler.h"
#include "jabber_whiteboard/error-codes.h"
namespace Inkscape {
namespace Whiteboard {
ChatMessageHandler::ChatMessageHandler(SessionManager* sm) : _sm(sm)
{
}
ChatMessageHandler::~ChatMessageHandler()
{
}
LmHandlerResult
ChatMessageHandler::parse(LmMessage* message)
{
// Retrieve the message type
LmMessageType mtype = lm_message_get_type(message);
// Retrieve root node of message
LmMessageNode* root = lm_message_get_node(message);
if (root == NULL) {
g_warning("Received a chat message with NULL root node; discarding.");
return LM_HANDLER_RESULT_REMOVE_MESSAGE;
}
LmMessageSubType msubtype;
msubtype = lm_message_get_sub_type(message);
switch (mtype) {
case LM_MESSAGE_TYPE_MESSAGE:
switch(msubtype) {
case LM_MESSAGE_SUB_TYPE_ERROR:
{
LmMessageNode* error = lm_message_node_get_child(root, "error");
if (error != NULL) {
this->_handleError(lm_message_node_get_attribute(error, "code"));
}
break;
}
case LM_MESSAGE_SUB_TYPE_GROUPCHAT:
{
// FIXME: We should be checking to see if we're in a room in the presence stanzas as indicated in
// <http://www.jabber.org/jeps/jep-0045.html#enter-pres> but current versions of mu-conference
// don't broadcast presence in the correct order.
//
// Therefore we need to use some sort of hacked-up method to make this work. We listen for
// the sentinel value in a groupchat message -- currently it is '[username] INKBOARD-JOINED' --
// and begin processing that way.
LmMessageNode* body = lm_message_node_get_child(root, "body");
if (body != NULL) {
gchar const* val = lm_message_node_get_value(body);
if (strcmp(val, String::ucompose("%1 INKBOARD-JOINED", this->_sm->session_data->chat_handle).c_str()) == 0) {
return this->_finishConnection(); break;
} else {
return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;
break;
}
} else {
return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;
break;
}
}
default:
return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;
break;
}
break;
case LM_MESSAGE_TYPE_PRESENCE:
// Retrieve the subtype.
switch (msubtype) {
case LM_MESSAGE_SUB_TYPE_ERROR:
{
g_warning("Could not connect to chatroom");
// Extract error type
LmMessageNode* error = lm_message_node_get_child(root, "error");
if (error != NULL) {
this->_handleError(lm_message_node_get_attribute(error, "code"));
}
// Reset status bits
this->_sm->session_data->status.set(CONNECTING_TO_CHAT, 0);
this->_sm->session_data->recipient = "";
this->_sm->session_data->chat_handle = "";
return LM_HANDLER_RESULT_REMOVE_MESSAGE;
break;
}
case LM_MESSAGE_SUB_TYPE_AVAILABLE:
{
// Extract the handle
// (see JEP-0045, section 6.3.3 - <http://www.jabber.org/jeps/jep-0045.html#enter-pres>)
Glib::ustring sender = lm_message_node_get_attribute(root, MESSAGE_FROM);
Glib::ustring chatter = sender.substr(sender.find_last_of('/') + 1, sender.length());
if (chatter != this->_sm->session_data->chat_handle) {
this->_sm->session_data->chatters.insert(g_strdup(chatter.data()));
// Make a receive queue for this chatter
this->_sm->session_data->receive_queues[sender.raw()] = new ReceiveMessageQueue(this->_sm);
} else {
// If the presence message is from ourselves, then we know that we
// have successfully entered the chatroom _and_ have received the entire room roster,
// and can therefore decide whether we need to synchronize with the rest of the room.
// (see JEP-0045, section 6.3.3 - <http://www.jabber.org/jeps/jep-0045.html#enter-pres>)
}
return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;
}
case LM_MESSAGE_SUB_TYPE_UNAVAILABLE:
{
Glib::ustring sender = lm_message_node_get_attribute(root, MESSAGE_FROM);
Glib::ustring chatter = sender.substr(sender.find_last_of('/') + 1, sender.length());
this->_sm->session_data->chatters.erase(chatter.data());
// Delete the message queue used by this sender
this->_sm->session_data->receive_queues.erase(sender.raw());
SP_DT_MSGSTACK(this->_sm->desktop())->flashF(Inkscape::INFORMATION_MESSAGE, _("<b>%s</b> has left the chatroom."), sender.c_str());
}
default:
// no idea what this message is; discard it
return LM_HANDLER_RESULT_REMOVE_MESSAGE;
break;
}
break;
default:
break;
}
return LM_HANDLER_RESULT_REMOVE_MESSAGE;
}
LmHandlerResult
ChatMessageHandler::_finishConnection()
{
if (this->_sm->session_data->status[CONNECTING_TO_CHAT]) {
this->_sm->session_data->status.set(CONNECTING_TO_CHAT, 0);
if (this->_sm->session_data->chatters.empty()) {
// We are the only one in the chatroom, so there is no
// need for synchronization
this->_sm->session_data->status.set(IN_CHATROOM, 1);
// Populate node tracker
KeyToNodeMap newids;
NodeToKeyMap newnodes;
NewChildObjectMessageList newchildren;
XML::Node* root = this->_sm->document()->rroot;
this->_sm->setupInkscapeInterface();
this->_sm->setupCommitListener();
for ( Inkscape::XML::Node *child = root->firstChild() ; child != NULL ; child = child->next() ) {
MessageUtilities::newObjectMessage(NULL, newids, newnodes, newchildren, this->_sm->node_tracker(), child, true);
}
this->_sm->node_tracker()->put(newids, newnodes);
// this->_sm->node_tracker()->dump();
} else {
this->_sm->session_data->status.set(WAITING_TO_SYNC_TO_CHAT, 1);
// Send synchronization request to chatroom
this->_sm->sendMessage(CHATROOM_SYNCHRONIZE_REQUEST, 0, "", this->_sm->session_data->recipient, true);
}
}
return LM_HANDLER_RESULT_REMOVE_MESSAGE;
}
void
ChatMessageHandler::_handleError(char const* errcode)
{
// try {
unsigned int code = atoi(errcode);
// unsigned int code = boost::lexical_cast< unsigned int >(errcode);
Glib::ustring buf;
switch (code) {
case ErrorCodes::CHAT_HANDLE_IN_USE:
buf = String::ucompose(_("Nickname %1 is already in use. Please choose a different nickname."), this->_sm->session_data->chat_handle);
this->_sm->connectionError(buf);
break;
case ErrorCodes::SERVER_CONNECT_FAILED:
buf = _("An error was encountered while attempting to connect to the server.");
this->_sm->connectionError(buf);
break;
default:
break;
}
// } catch (boost::bad_lexical_cast&) {
// }
}
}
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
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