src/protocols/qq/buddy_status.c

/**
 * The QQ2003C protocol plugin
 *
 * for gaim
 *
 * Copyright (C) 2004 Puzzlebird
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

// START OF FILE
/*****************************************************************************/
#include <string.h>		// g_memmove
#include "debug.h"		// gaim_debug
#include "prefs.h"		// gaim_prefs_get_bool

#include "utils.h"		// get_ip_str
#include "packet_parse.h"	// create_packet,
#include "buddy_status.h"
#include "crypt.h"		// qq_crypt.h
#include "header_info.h"	// cmd alias
#include "keep_alive.h"		// qq_update_buddy_contact
#include "send_core.h"		// qq_send_cmd

#include "qq_proxy.h"

#define QQ_MISC_STATUS_HAVING_VIIDEO      0x00000001

#define QQ_ICON_SUFFIX_DEFAULT            QQ_ICON_SUFFIX_OFFLINE
#define QQ_CHANGE_ONLINE_STATUS_REPLY_OK 	0x30	// ASCii value of "0"

enum {
	QQ_ICON_SUFFIX_NORMAL = 1,
	QQ_ICON_SUFFIX_OFFLINE = 2,
	QQ_ICON_SUFFIX_AWAY = 3,
};

/*****************************************************************************/
void qq_buddy_status_dump_unclear(qq_buddy_status * s)
{
	GString *dump;

	g_return_if_fail(s != NULL);

	dump = g_string_new("");
	g_string_append_printf(dump, "unclear fields for [%d]:\n", s->uid);
	g_string_append_printf(dump, "004:     %02x   (unknown)\n", s->unknown1);
	//g_string_append_printf(dump, "005-008:     %09x   (ip)\n", *(s->ip));
	g_string_append_printf(dump, "009-010:     %04x   (port)\n", s->port);
	g_string_append_printf(dump, "011:     %02x   (unknown)\n", s->unknown2);
	g_string_append_printf(dump, "012:     %02x   (status)\n", s->status);
	g_string_append_printf(dump, "013-014:     %04x   (client_version)\n", s->client_version);
	//g_string_append_printf(dump, "015-030:     %s   (unknown key)\n", s->unknown_key);
	gaim_debug(GAIM_DEBUG_INFO, "QQ", "Buddy status entry, %s", dump->str);
	_qq_show_packet("Unknown key", s->unknown_key, QQ_KEY_LENGTH);
	g_string_free(dump, TRUE);
}

/*****************************************************************************/
// TODO: figure out what's going on with the IP region. Sometimes I get things which
// may be valid IP addresses, but the port number's weird, other times I get 0s. 
// Note: I get these simultaneously on the same buddy, using different accounts to get info.
// parse the data into qq_buddy_status
gint qq_buddy_status_read(guint8 * data, guint8 ** cursor, gint len, qq_buddy_status * s) {
	gint bytes;

	g_return_val_if_fail(data != NULL && *cursor != NULL && s != NULL, -1);

	bytes = 0;

	// 000-003: uid
	bytes += read_packet_dw(data, cursor, len, &s->uid);
	// 004-004: 0x01
	bytes += read_packet_b(data, cursor, len, &s->unknown1);
	// this is no longer the IP, it seems QQ (as of 2006) no longer sends
	// the buddy's IP in this packet. all 0s
	// 005-008: ip
	s->ip = g_new0(guint8, 4);
	bytes += read_packet_data(data, cursor, len, s->ip, 4);
	// port info is no longer here either
	// 009-010: port
	bytes += read_packet_w(data, cursor, len, &s->port);
	// 011-011: 0x00
	bytes += read_packet_b(data, cursor, len, &s->unknown2);
	// 012-012: status
	bytes += read_packet_b(data, cursor, len, &s->status);
	// 013-014: client_version 
	bytes += read_packet_w(data, cursor, len, &s->client_version);
	// 015-030: unknown key
	s->unknown_key = g_new0(guint8, QQ_KEY_LENGTH);
	bytes += read_packet_data(data, cursor, len, s->unknown_key, QQ_KEY_LENGTH);

	if (s->uid == 0 || bytes != 31)
		return -1;

	return bytes;

}

/*****************************************************************************/
// check if status means online or offline
gboolean is_online(guint8 status)
{
//	return (status == QQ_BUDDY_ONLINE_NORMAL ? TRUE : (status == QQ_BUDDY_ONLINE_AWAY ? TRUE : FALSE));
	//rewritten by gfhuang
	switch(status) {
	case QQ_BUDDY_ONLINE_NORMAL:
	case QQ_BUDDY_ONLINE_AWAY:
	case QQ_BUDDY_ONLINE_INVISIBLE:
		return TRUE;
	case QQ_BUDDY_ONLINE_OFFLINE:
		return FALSE;
	}
	return FALSE;
}				// is_online

/*****************************************************************************/
// the icon suffix is detemined by status
// although QQ server may return the right icon, I set it here myself
gchar get_suffix_from_status(guint8 status)
{
	switch (status) {
	case QQ_BUDDY_ONLINE_NORMAL:
		return QQ_ICON_SUFFIX_NORMAL;
	case QQ_BUDDY_ONLINE_AWAY:
		return QQ_ICON_SUFFIX_AWAY;
	case QQ_BUDDY_ONLINE_INVISIBLE:
	case QQ_BUDDY_ONLINE_OFFLINE:
		return QQ_ICON_SUFFIX_OFFLINE;
	default:
		return QQ_ICON_SUFFIX_DEFAULT;
	}			// switch
}				// get_suffix_from_status

/*****************************************************************************/
// send a packet to change my online status
void qq_send_packet_change_status(GaimConnection * gc)
{
	qq_data *qd;
	guint8 *raw_data, *cursor, away_cmd;
	guint32 misc_status;
	gboolean fake_video;

	g_return_if_fail(gc != NULL && gc->proto_data != NULL);

	qd = (qq_data *) gc->proto_data;
	if (!qd->logged_in)
		return;

	switch (qd->status) {
	case QQ_SELF_STATUS_AVAILABLE:
		away_cmd = QQ_BUDDY_ONLINE_NORMAL;
		break;
	case QQ_SELF_STATUS_INVISIBLE:
		away_cmd = QQ_BUDDY_ONLINE_INVISIBLE;
		break;
	case QQ_SELF_STATUS_AWAY:
	case QQ_SELF_STATUS_IDLE:
	case QQ_SELF_STATUS_CUSTOM:
		away_cmd = QQ_BUDDY_ONLINE_AWAY;
		break;
	default:
		away_cmd = QQ_BUDDY_ONLINE_NORMAL;
	}

	raw_data = g_new0(guint8, 5);
	cursor = raw_data;
	misc_status = 0x00000000;

	fake_video = gaim_prefs_get_bool("/plugins/prpl/qq/show_fake_video");
	if (fake_video)
		misc_status |= QQ_MISC_STATUS_HAVING_VIIDEO;

	create_packet_b(raw_data, &cursor, away_cmd);
	create_packet_dw(raw_data, &cursor, misc_status);

	qq_send_cmd(gc, QQ_CMD_CHANGE_ONLINE_STATUS, TRUE, 0, TRUE, raw_data, 5);

	g_free(raw_data);
}

/*****************************************************************************/
// parse the reply packet for change_status
void qq_process_change_status_reply(guint8 * buf, gint buf_len, GaimConnection * gc) {
	qq_data *qd;
	gint len;
	guint8 *data, *cursor, reply;

	g_return_if_fail(gc != NULL && gc->proto_data != NULL);
	g_return_if_fail(buf != NULL && buf_len != 0);

	qd = (qq_data *) gc->proto_data;
	len = buf_len;
	data = g_newa(guint8, len);

	if (qq_crypt(DECRYPT, buf, buf_len, qd->session_key, data, &len)) {
		cursor = data;
		read_packet_b(data, &cursor, len, &reply);
		if (reply != QQ_CHANGE_ONLINE_STATUS_REPLY_OK) {
			gaim_debug(GAIM_DEBUG_WARNING, "QQ", "Change status fail\n");
		} else
			gaim_debug(GAIM_DEBUG_INFO, "QQ", "Change status OK\n");
	} else
		gaim_debug(GAIM_DEBUG_ERROR, "QQ", "Error decrypt chg status reply\n");

}

/*****************************************************************************/
// it is a server message 
// indicating that one of my buddies changes its status
void qq_process_friend_change_status(guint8 * buf, gint buf_len, GaimConnection * gc) {
	qq_data *qd;
	gint len, bytes;
	guint32 my_uid;
	guint8 *data, *cursor;
	GaimBuddy *b;
	qq_buddy *q_bud;
	qq_buddy_status *s;
	gchar *name;

	g_return_if_fail(gc != NULL && gc->proto_data != NULL);
	g_return_if_fail(buf != NULL && buf_len != 0);

	qd = (qq_data *) gc->proto_data;
	len = buf_len;
	data = g_newa(guint8, len);
	cursor = data;

	if (qq_crypt(DECRYPT, buf, buf_len, qd->session_key, data, &len)) {
		s = g_new0(qq_buddy_status, 1);
		bytes = 0;
		// 000-030: qq_buddy_status;
		bytes += qq_buddy_status_read(data, &cursor, len, s);
		// 031-034: my uid
		bytes += read_packet_dw(data, &cursor, len, &my_uid);

		if (my_uid == 0 || bytes != 35) {
			gaim_debug(GAIM_DEBUG_ERROR, "QQ", "my_uid == 0 || bytes(%d) != 35\n", bytes);
			g_free(s->ip);
			g_free(s->unknown_key);
			g_free(s);
			return;
		}
//		if (QQ_DEBUG)						gfhuang
//			_qq_buddy_status_dump_unclear(s);

		name = uid_to_gaim_name(s->uid);
		b = gaim_find_buddy(gc->account, name);
		g_free(name);
		q_bud = (b == NULL) ? NULL : (qq_buddy *) b->proto_data;
		if (q_bud) {
			gaim_debug(GAIM_DEBUG_INFO, "QQ", "s->uid = %d, q_bud->uid = %d\n", s->uid , q_bud->uid);
			if(0 != *((guint32 *)s->ip)) { 
				g_memmove(q_bud->ip, s->ip, 4);
				q_bud->port = s->port;
			}
			q_bud->status = s->status;
			if(0 != s->client_version) 
				q_bud->client_version = s->client_version; 
			qq_update_buddy_contact(gc, q_bud);
		}
		else 
			gaim_debug(GAIM_DEBUG_ERROR, "QQ", "got information of unknown buddy by gfhuang %d\n", s->uid);

		g_free(s->ip);
		g_free(s->unknown_key);
		g_free(s);
	} else
		gaim_debug(GAIM_DEBUG_ERROR, "QQ", "Error decrypt buddy status change packet\n");
}

/*****************************************************************************/
// END OF FILE