message.c

Linux下的多协议即时通讯程序源代码

			jm->chat_state = JM_STATE_PAUSED;
			jm->typing_style |= JM_TS_JEP_0085;
		} else if(!strcmp(child->name, "inactive")) {
			jm->chat_state = JM_STATE_INACTIVE;
			jm->typing_style |= JM_TS_JEP_0085;
		} else if(!strcmp(child->name, "gone")) {
			jm->chat_state = JM_STATE_GONE;
			jm->typing_style |= JM_TS_JEP_0085;
		} else if(!strcmp(child->name, "error")) {
			const char *code = xmlnode_get_attrib(child, "code");
			char *code_txt = NULL;
			char *text = xmlnode_get_data(child);

			if(code)
				code_txt = g_strdup_printf(_(" (Code %s)"), code);

			if(!jm->error)
				jm->error = g_strdup_printf("%s%s", text ? text : "",
						code_txt ? code_txt : "");

			g_free(code_txt);
			g_free(text);
		} else if(!strcmp(child->name, "x")) {
			const char *xmlns = xmlnode_get_namespace(child);
			if(xmlns && !strcmp(xmlns, "jabber:x:event")) {
				if(xmlnode_get_child(child, "composing")) {
					if(jm->chat_state == JM_STATE_ACTIVE)
						jm->chat_state = JM_STATE_COMPOSING;
					jm->typing_style |= JM_TS_JEP_0022;
				}
			} else if(xmlns && !strcmp(xmlns, "jabber:x:delay")) {
				const char *timestamp = xmlnode_get_attrib(child, "stamp");
				jm->delayed = TRUE;
				if(timestamp)
					jm->sent = purple_str_to_time(timestamp, TRUE, NULL, NULL, NULL);
			} else if(xmlns && !strcmp(xmlns, "jabber:x:conference") &&
					jm->type != JABBER_MESSAGE_GROUPCHAT_INVITE &&
					jm->type != JABBER_MESSAGE_ERROR) {
				const char *jid = xmlnode_get_attrib(child, "jid");
				if(jid) {
					jm->type = JABBER_MESSAGE_GROUPCHAT_INVITE;
					g_free(jm->to);
					jm->to = g_strdup(jid);
				}
			} else if(xmlns && !strcmp(xmlns,
						"http://jabber.org/protocol/muc#user") &&
					jm->type != JABBER_MESSAGE_ERROR) {
				xmlnode *invite = xmlnode_get_child(child, "invite");
				if(invite) {
					xmlnode *reason, *password;
					const char *jid = xmlnode_get_attrib(invite, "from");
					g_free(jm->to);
					jm->to = jm->from;
					jm->from = g_strdup(jid);
					if((reason = xmlnode_get_child(invite, "reason"))) {
						g_free(jm->body);
						jm->body = xmlnode_get_data(reason);
					}
					if((password = xmlnode_get_child(child, "password")))
						jm->password = xmlnode_get_data(password);

					jm->type = JABBER_MESSAGE_GROUPCHAT_INVITE;
				}
			} else {
				jm->etc = g_list_append(jm->etc, child);
			}
		}
	}

	switch(jm->type) {
		case JABBER_MESSAGE_NORMAL:
		case JABBER_MESSAGE_CHAT:
			handle_chat(jm);
			break;
		case JABBER_MESSAGE_HEADLINE:
			handle_headline(jm);
			break;
		case JABBER_MESSAGE_GROUPCHAT:
			handle_groupchat(jm);
			break;
		case JABBER_MESSAGE_GROUPCHAT_INVITE:
			handle_groupchat_invite(jm);
			break;
		case JABBER_MESSAGE_ERROR:
			handle_error(jm);
			break;
		case JABBER_MESSAGE_OTHER:
			purple_debug(PURPLE_DEBUG_INFO, "jabber",
					"Received message of unknown type: %s\n", type);
			break;
	}
	jabber_message_free(jm);
}

void jabber_message_send(JabberMessage *jm)
{
	xmlnode *message, *child;
	const char *type = NULL;

	message = xmlnode_new("message");

	switch(jm->type) {
		case JABBER_MESSAGE_NORMAL:
			type = "normal";
			break;
		case JABBER_MESSAGE_CHAT:
		case JABBER_MESSAGE_GROUPCHAT_INVITE:
			type = "chat";
			break;
		case JABBER_MESSAGE_HEADLINE:
			type = "headline";
			break;
		case JABBER_MESSAGE_GROUPCHAT:
			type = "groupchat";
			break;
		case JABBER_MESSAGE_ERROR:
			type = "error";
			break;
		case JABBER_MESSAGE_OTHER:
			type = NULL;
			break;
	}

	if(type)
		xmlnode_set_attrib(message, "type", type);
 
	if (jm->id)
		xmlnode_set_attrib(message, "id", jm->id);

	xmlnode_set_attrib(message, "to", jm->to);

	if(jm->thread_id) {
		child = xmlnode_new_child(message, "thread");
		xmlnode_insert_data(child, jm->thread_id, -1);
	}

	if(JM_TS_JEP_0022 == (jm->typing_style & JM_TS_JEP_0022)) {
		child = xmlnode_new_child(message, "x");
		xmlnode_set_namespace(child, "jabber:x:event");
		if(jm->chat_state == JM_STATE_COMPOSING || jm->body)
			xmlnode_new_child(child, "composing");
	}

	if(JM_TS_JEP_0085 == (jm->typing_style & JM_TS_JEP_0085)) {
		child = NULL;
		switch(jm->chat_state)
		{
			case JM_STATE_ACTIVE:
				child = xmlnode_new_child(message, "active");
				break;
			case JM_STATE_COMPOSING:
				child = xmlnode_new_child(message, "composing");
				break;
			case JM_STATE_PAUSED:
				child = xmlnode_new_child(message, "paused");
				break;
			case JM_STATE_INACTIVE:
				child = xmlnode_new_child(message, "inactive");
				break;
			case JM_STATE_GONE:
				child = xmlnode_new_child(message, "gone");
				break;
		}
		if(child)
			xmlnode_set_namespace(child, "http://jabber.org/protocol/chatstates");
	}

	if(jm->subject) {
		child = xmlnode_new_child(message, "subject");
		xmlnode_insert_data(child, jm->subject, -1);
	}

	if(jm->body) {
		child = xmlnode_new_child(message, "body");
		xmlnode_insert_data(child, jm->body, -1);
	}

	if(jm->xhtml) {
		child = xmlnode_from_str(jm->xhtml, -1);
		if(child) {
			xmlnode_insert_child(message, child);
		} else {
			purple_debug(PURPLE_DEBUG_ERROR, "jabber",
					"XHTML translation/validation failed, returning: %s\n",
					jm->xhtml);
		}
	}

	jabber_send(jm->js, message);

	xmlnode_free(message);
}

int jabber_message_send_im(PurpleConnection *gc, const char *who, const char *msg,
		PurpleMessageFlags flags)
{
	JabberMessage *jm;
	JabberBuddy *jb;
	JabberBuddyResource *jbr;
	char *buf;
	char *xhtml;
	char *resource;

	if(!who || !msg)
		return 0;

	resource = jabber_get_resource(who);

	jb = jabber_buddy_find(gc->proto_data, who, TRUE);
	jbr = jabber_buddy_find_resource(jb, resource);

	g_free(resource);

	jm = g_new0(JabberMessage, 1);
	jm->js = gc->proto_data;
	jm->type = JABBER_MESSAGE_CHAT;
	jm->chat_state = JM_STATE_ACTIVE;
	jm->to = g_strdup(who);
	jm->id = jabber_get_next_id(jm->js);
	jm->chat_state = JM_STATE_ACTIVE;

	if(jbr) {
		if(jbr->thread_id)
			jm->thread_id = jbr->thread_id;

		if(jbr->chat_states != JABBER_CHAT_STATES_UNSUPPORTED) {
			jm->typing_style |= JM_TS_JEP_0085;
			/* if(JABBER_CHAT_STATES_UNKNOWN == jbr->chat_states)
			   jbr->chat_states = JABBER_CHAT_STATES_UNSUPPORTED; */
		}

		if(jbr->chat_states != JABBER_CHAT_STATES_SUPPORTED)
			jm->typing_style |= JM_TS_JEP_0022;
	}

	buf = g_strdup_printf("<html xmlns='http://jabber.org/protocol/xhtml-im'><body xmlns='http://www.w3.org/1999/xhtml'>%s</body></html>", msg);
	
	purple_markup_html_to_xhtml(buf, &xhtml, &jm->body);
	g_free(buf);

	if(!jbr || jbr->capabilities & JABBER_CAP_XHTML)
		jm->xhtml = xhtml;
	else
		g_free(xhtml);

	jabber_message_send(jm);
	jabber_message_free(jm);
	return 1;
}

int jabber_message_send_chat(PurpleConnection *gc, int id, const char *msg, PurpleMessageFlags flags)
{
	JabberChat *chat;
	JabberMessage *jm;
	JabberStream *js;
	char *buf;

	if(!msg || !gc)
		return 0;

	js = gc->proto_data;
	chat = jabber_chat_find_by_id(js, id);

	if(!chat)
		return 0;

	jm = g_new0(JabberMessage, 1);
	jm->js = gc->proto_data;
	jm->type = JABBER_MESSAGE_GROUPCHAT;
	jm->to = g_strdup_printf("%s@%s", chat->room, chat->server);
	jm->id = jabber_get_next_id(jm->js);

	buf = g_strdup_printf("<html xmlns='http://jabber.org/protocol/xhtml-im'><body xmlns='http://www.w3.org/1999/xhtml'>%s</body></html>", msg);
	purple_markup_html_to_xhtml(buf, &jm->xhtml, &jm->body);
	g_free(buf);

	if(!chat->xhtml) {
		g_free(jm->xhtml);
		jm->xhtml = NULL;
	}

	jabber_message_send(jm);
	jabber_message_free(jm);

	return 1;
}

unsigned int jabber_send_typing(PurpleConnection *gc, const char *who, PurpleTypingState state)
{
	JabberMessage *jm;
	JabberBuddy *jb;
	JabberBuddyResource *jbr;
	char *resource = jabber_get_resource(who);

	jb = jabber_buddy_find(gc->proto_data, who, TRUE);
	jbr = jabber_buddy_find_resource(jb, resource);

	g_free(resource);

	if(!jbr || !((jbr->capabilities & JABBER_CAP_COMPOSING) || (jbr->chat_states != JABBER_CHAT_STATES_UNSUPPORTED)))
		return 0;

	/* TODO: figure out threading */
	jm = g_new0(JabberMessage, 1);
	jm->js = gc->proto_data;
	jm->type = JABBER_MESSAGE_CHAT;
	jm->to = g_strdup(who);
	jm->id = jabber_get_next_id(jm->js);

	if(PURPLE_TYPING == state)
		jm->chat_state = JM_STATE_COMPOSING;
	else if(PURPLE_TYPED == state)
		jm->chat_state = JM_STATE_PAUSED;
	else
		jm->chat_state = JM_STATE_ACTIVE;

	if(jbr->chat_states != JABBER_CHAT_STATES_UNSUPPORTED) {
		jm->typing_style |= JM_TS_JEP_0085;
		/* if(JABBER_CHAT_STATES_UNKNOWN == jbr->chat_states)
			jbr->chat_states = JABBER_CHAT_STATES_UNSUPPORTED; */
	}

	if(jbr->chat_states != JABBER_CHAT_STATES_SUPPORTED)
		jm->typing_style |= JM_TS_JEP_0022;

	jabber_message_send(jm);
	jabber_message_free(jm);

	return 0;
}

void jabber_message_conv_closed(JabberStream *js, const char *who)
{
	JabberMessage *jm = g_new0(JabberMessage, 1);
	jm->js = js;
	jm->type = JABBER_MESSAGE_CHAT;
	jm->to = g_strdup(who);
	jm->id = jabber_get_next_id(jm->js);
	jm->typing_style = JM_TS_JEP_0085;
	jm->chat_state = JM_STATE_GONE;
	jabber_message_send(jm);
	jabber_message_free(jm);
}