source: protocols/yahoo/yahoo.c @ 537d9b9

/*
 * libyahoo2 wrapper to BitlBee
 *
 * Mostly Copyright 2004-2012 Wilmer van der Gaast <wilmer@gaast.net>
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */


#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <sys/stat.h>
#include <ctype.h>
#include "nogaim.h"
#include "yahoo2.h"
#include "yahoo2_callbacks.h"

#define BYAHOO_DEFAULT_GROUP "Buddies"

/* A hack to handle removal of buddies not in the group "Buddies" correctly */
struct byahoo_buddygroups {
        char *buddy;
        char *group;
};

struct byahoo_data {
        int y2_id;
        int current_status;
        gboolean logged_in;
        GSList *buddygroups;
};

struct byahoo_input_data {
        int h;
        void *d;
};

struct byahoo_conf_invitation {
        char *name;
        struct groupchat *c;
        int yid;
        YList *members;
        struct im_connection *ic;
};

static GSList *byahoo_inputs = NULL;
static int byahoo_chat_id = 0;

static char *byahoo_strip(const char *in)
{
        int len;

        /* This should get rid of the markup noise at the beginning of the string. */
        while (*in) {
                if (g_strncasecmp(in, "<font", 5) == 0 ||
                    g_strncasecmp(in, "<fade", 5) == 0 ||
                    g_strncasecmp(in, "<alt", 4) == 0) {
                        char *s = strchr(in, '>');
                        if (!s) {
                                break;
                        }

                        in = s + 1;
                } else if (strncmp(in, "\e[", 2) == 0) {
                        const char *s;

                        for (s = in + 2; *s && *s != 'm'; s++) {
                                ;
                        }

                        if (*s != 'm') {
                                break;
                        }

                        in = s + 1;
                } else {
                        break;
                }
        }

        /* This is supposed to get rid of the noise at the end of the line. */
        len = strlen(in);
        while (len > 0 && (in[len - 1] == '>' || in[len - 1] == 'm')) {
                int blen = len;
                const char *search;

                if (in[len - 1] == '>') {
                        search = "</";
                } else {
                        search = "\e[";
                }

                len -= 3;
                while (len > 0 && strncmp(in + len, search, 2) != 0) {
                        len--;
                }

                if (len <= 0 && strncmp(in, search, 2) != 0) {
                        len = blen;
                        break;
                }
        }

        return(g_strndup(in, len));
}

static void byahoo_init(account_t *acc)
{
        set_t *s;

        s = set_add(&acc->set, "mail_notifications", "false", set_eval_bool, acc);
        s->flags |= ACC_SET_OFFLINE_ONLY;

        s = set_add(&acc->set, "mail_notifications_handle", NULL, NULL, acc);
        s->flags |= ACC_SET_OFFLINE_ONLY | SET_NULL_OK;

        acc->flags |= ACC_FLAG_AWAY_MESSAGE | ACC_FLAG_STATUS_MESSAGE;
}

static void byahoo_login(account_t *acc)
{
        struct im_connection *ic = imcb_new(acc);
        struct byahoo_data *yd = ic->proto_data = g_new0(struct byahoo_data, 1);
        char *s;

        yd->logged_in = FALSE;
        yd->current_status = YAHOO_STATUS_AVAILABLE;

        if ((s = strchr(acc->user, '@')) && g_strcasecmp(s, "@yahoo.com") == 0) {
                imcb_error(ic, "Your Yahoo! username should just be a username. "
                           "Do not include any @domain part.");
        }

        imcb_log(ic, "Connecting");
        yd->y2_id = yahoo_init(acc->user, acc->pass);
        yahoo_login(yd->y2_id, yd->current_status);

        if (set_getbool(&acc->set, "mail_notifications") && set_getstr(&acc->set, "mail_notifications_handle")) {
                imcb_add_buddy(ic, set_getstr(&acc->set, "mail_notifications_handle"), NULL);
        }
}

static void byahoo_logout(struct im_connection *ic)
{
        struct byahoo_data *yd = (struct byahoo_data *) ic->proto_data;
        GSList *l;

        while (ic->groupchats) {
                imcb_chat_free(ic->groupchats->data);
        }

        for (l = yd->buddygroups; l; l = l->next) {
                struct byahoo_buddygroups *bg = l->data;

                g_free(bg->buddy);
                g_free(bg->group);
                g_free(bg);
        }
        g_slist_free(yd->buddygroups);

        yahoo_logoff(yd->y2_id);

        g_free(yd);
}

static void byahoo_get_info(struct im_connection *ic, char *who)
{
        /* Just make an URL and let the user fetch the info */
        imcb_log(ic, "%s\n%s: %s%s", _("User Info"),
                 _("For now, fetch yourself"), yahoo_get_profile_url(),
                 who);
}

static int byahoo_buddy_msg(struct im_connection *ic, char *who, char *what, int flags)
{
        struct byahoo_data *yd = ic->proto_data;

        yahoo_send_im(yd->y2_id, NULL, who, what, 1, 0);

        return 1;
}

static int byahoo_send_typing(struct im_connection *ic, char *who, int typing)
{
        struct byahoo_data *yd = ic->proto_data;

        yahoo_send_typing(yd->y2_id, NULL, who, (typing & OPT_TYPING) != 0);

        return 1;
}

static void byahoo_set_away(struct im_connection *ic, char *state, char *msg)
{
        struct byahoo_data *yd = (struct byahoo_data *) ic->proto_data;

        if (state && msg == NULL) {
                /* Use these states only if msg doesn't contain additional
                   info since away messages are only supported with CUSTOM. */
                if (g_strcasecmp(state, "Be Right Back") == 0) {
                        yd->current_status = YAHOO_STATUS_BRB;
                } else if (g_strcasecmp(state, "Busy") == 0) {
                        yd->current_status = YAHOO_STATUS_BUSY;
                } else if (g_strcasecmp(state, "Not At Home") == 0) {
                        yd->current_status = YAHOO_STATUS_NOTATHOME;
                } else if (g_strcasecmp(state, "Not At Desk") == 0) {
                        yd->current_status = YAHOO_STATUS_NOTATDESK;
                } else if (g_strcasecmp(state, "Not In Office") == 0) {
                        yd->current_status = YAHOO_STATUS_NOTINOFFICE;
                } else if (g_strcasecmp(state, "On Phone") == 0) {
                        yd->current_status = YAHOO_STATUS_ONPHONE;
                } else if (g_strcasecmp(state, "On Vacation") == 0) {
                        yd->current_status = YAHOO_STATUS_ONVACATION;
                } else if (g_strcasecmp(state, "Out To Lunch") == 0) {
                        yd->current_status = YAHOO_STATUS_OUTTOLUNCH;
                } else if (g_strcasecmp(state, "Stepped Out") == 0) {
                        yd->current_status = YAHOO_STATUS_STEPPEDOUT;
                } else if (g_strcasecmp(state, "Invisible") == 0) {
                        yd->current_status = YAHOO_STATUS_INVISIBLE;
                } else {
                        yd->current_status = YAHOO_STATUS_CUSTOM;
                }
        } else if (msg) {
                yd->current_status = YAHOO_STATUS_CUSTOM;
        } else {
                yd->current_status = YAHOO_STATUS_AVAILABLE;
        }

        yahoo_set_away(yd->y2_id, yd->current_status, msg, state ? 2 : 0);
}

static GList *byahoo_away_states(struct im_connection *ic)
{
        static GList *m = NULL;

        if (m == NULL) {
                m = g_list_append(m, "Be Right Back");
                m = g_list_append(m, "Busy");
                m = g_list_append(m, "Not At Home");
                m = g_list_append(m, "Not At Desk");
                m = g_list_append(m, "Not In Office");
                m = g_list_append(m, "On Phone");
                m = g_list_append(m, "On Vacation");
                m = g_list_append(m, "Out To Lunch");
                m = g_list_append(m, "Stepped Out");
                m = g_list_append(m, "Invisible");
        }

        return m;
}

static void byahoo_keepalive(struct im_connection *ic)
{
        struct byahoo_data *yd = ic->proto_data;

        yahoo_keepalive(yd->y2_id);
}

static void byahoo_add_buddy(struct im_connection *ic, char *who, char *group)
{
        struct byahoo_data *yd = (struct byahoo_data *) ic->proto_data;
        bee_user_t *bu;

        if (group && (bu = bee_user_by_handle(ic->bee, ic, who)) && bu->group) {
                GSList *bgl;

                /* If the person is in our list already, this is a group change. */
                yahoo_change_buddy_group(yd->y2_id, who, bu->group->name, group);

                /* No idea how often people have people in multiple groups and
                   BitlBee doesn't currently support this anyway .. but keep
                   this struct up-to-date for now. */
                for (bgl = yd->buddygroups; bgl; bgl = bgl->next) {
                        struct byahoo_buddygroups *bg = bgl->data;

                        if (g_strcasecmp(bg->buddy, who) == 0 &&
                            g_strcasecmp(bg->group, bu->group->name) == 0) {
                                g_free(bg->group);
                                bg->group = g_strdup(group);
                        }
                }
        } else {
                yahoo_add_buddy(yd->y2_id, who, group ? group : BYAHOO_DEFAULT_GROUP, NULL);
        }
}

static void byahoo_remove_buddy(struct im_connection *ic, char *who, char *group)
{
        struct byahoo_data *yd = (struct byahoo_data *) ic->proto_data;
        GSList *bgl;

        yahoo_remove_buddy(yd->y2_id, who, BYAHOO_DEFAULT_GROUP);

        for (bgl = yd->buddygroups; bgl; bgl = bgl->next) {
                struct byahoo_buddygroups *bg = bgl->data;

                if (g_strcasecmp(bg->buddy, who) == 0) {
                        yahoo_remove_buddy(yd->y2_id, who, bg->group);
                }
        }
}

static void byahoo_chat_msg(struct groupchat *c, char *message, int flags)
{
        struct byahoo_data *yd = (struct byahoo_data *) c->ic->proto_data;

        yahoo_conference_message(yd->y2_id, NULL, c->data, c->title, message, 1);
}

static void byahoo_chat_invite(struct groupchat *c, char *who, char *msg)
{
        struct byahoo_data *yd = (struct byahoo_data *) c->ic->proto_data;

        yahoo_conference_invite(yd->y2_id, NULL, c->data, c->title, msg ? msg : "");
}

static void byahoo_chat_leave(struct groupchat *c)
{
        struct byahoo_data *yd = (struct byahoo_data *) c->ic->proto_data;

        yahoo_conference_logoff(yd->y2_id, NULL, c->data, c->title);
        imcb_chat_free(c);
}

static struct groupchat *byahoo_chat_with(struct im_connection *ic, char *who)
{
        struct byahoo_data *yd = (struct byahoo_data *) ic->proto_data;
        struct groupchat *c;
        char *roomname;
        YList *members;

        roomname = g_strdup_printf("%s-Bee-%d", ic->acc->user, byahoo_chat_id);

        c = imcb_chat_new(ic, roomname);
        imcb_chat_add_buddy(c, ic->acc->user);

        /* FIXME: Free this thing when the chat's destroyed. We can't *always*
                  do this because it's not always created here. */
        c->data = members = g_new0(YList, 1);
        members->data = g_strdup(who);

        yahoo_conference_invite(yd->y2_id, NULL, members, roomname, "Please join my groupchat...");

        g_free(roomname);

        return c;
}

static void byahoo_auth_allow(struct im_connection *ic, const char *who)
{
        struct byahoo_data *yd = (struct byahoo_data *) ic->proto_data;

        yahoo_confirm_buddy(yd->y2_id, who, 0, "");
}

static void byahoo_auth_deny(struct im_connection *ic, const char *who)
{
        struct byahoo_data *yd = (struct byahoo_data *) ic->proto_data;

        yahoo_confirm_buddy(yd->y2_id, who, 1, "");
}

void byahoo_initmodule()
{
        struct prpl *ret = g_new0(struct prpl, 1);

        ret->name = "yahoo";
        ret->mms = 832;       /* this guess taken from libotr UPGRADING file */
        ret->init = byahoo_init;

        ret->login = byahoo_login;
        ret->keepalive = byahoo_keepalive;
        ret->logout = byahoo_logout;

        ret->buddy_msg = byahoo_buddy_msg;
        ret->get_info = byahoo_get_info;
        ret->away_states = byahoo_away_states;
        ret->set_away = byahoo_set_away;
        ret->add_buddy = byahoo_add_buddy;
        ret->remove_buddy = byahoo_remove_buddy;
        ret->send_typing = byahoo_send_typing;

        ret->chat_msg = byahoo_chat_msg;
        ret->chat_invite = byahoo_chat_invite;
        ret->chat_leave = byahoo_chat_leave;
        ret->chat_with = byahoo_chat_with;

        ret->handle_cmp = g_strcasecmp;

        ret->auth_allow = byahoo_auth_allow;
        ret->auth_deny = byahoo_auth_deny;

        register_protocol(ret);
}

static struct im_connection *byahoo_get_ic_by_id(int id)
{
        GSList *l;
        struct im_connection *ic;
        struct byahoo_data *yd;

        for (l = get_connections(); l; l = l->next) {
                ic = l->data;
                yd = ic->proto_data;

                if (strcmp(ic->acc->prpl->name, "yahoo") == 0 && yd->y2_id == id) {
                        return(ic);
                }
        }

        return(NULL);
}


/* Now it's callback time! */

struct byahoo_connect_callback_data {
        int fd;
        yahoo_connect_callback callback;
        gpointer data;
        int id;
};

void byahoo_connect_callback(gpointer data, gint source, b_input_condition cond)
{
        struct byahoo_connect_callback_data *d = data;
        struct im_connection *ic;

        if (!(ic = byahoo_get_ic_by_id(d->id))) {
                g_free(d);
                return;
        }

        if (source == -1) {
                d->callback(NULL, 0, d->data);
                imcb_error(ic, "Could not connect to server");
                imc_logout(ic, TRUE);
                g_free(d);
                return;
        }

        d->callback(NULL + d->fd, 0, d->data);
        g_free(d);
}

struct byahoo_read_ready_data {
        int id;
        int fd;
        int tag;
        gpointer data;
};

gboolean byahoo_read_ready_callback(gpointer data, gint source, b_input_condition cond)
{
        struct byahoo_read_ready_data *d = data;

        if (!byahoo_get_ic_by_id(d->id)) {
                /* WTF doesn't libyahoo clean this up? */
                return FALSE;
        }

        yahoo_read_ready(d->id, NULL + d->fd, d->data);

        return TRUE;
}

struct byahoo_write_ready_data {
        int id;
        int fd;
        int tag;
        gpointer data;
};

gboolean byahoo_write_ready_callback(gpointer data, gint source, b_input_condition cond)
{
        struct byahoo_write_ready_data *d = data;

        return yahoo_write_ready(d->id, NULL + d->fd, d->data);
}

void ext_yahoo_login_response(int id, int succ, const char *url)
{
        struct im_connection *ic = byahoo_get_ic_by_id(id);
        struct byahoo_data *yd = NULL;

        if (ic == NULL) {
                /* libyahoo2 seems to call this one twice when something
                   went wrong sometimes. Don't know why. Because we clean
                   up the connection on the first failure, the second
                   should be ignored. */

                return;
        }

        yd = (struct byahoo_data *) ic->proto_data;

        if (succ == YAHOO_LOGIN_OK) {
                imcb_connected(ic);

                yd->logged_in = TRUE;
        } else {
                char *errstr;
                int allow_reconnect = FALSE;

                yd->logged_in = FALSE;

                if (succ == YAHOO_LOGIN_UNAME) {
                        errstr = "Incorrect Yahoo! username";
                } else if (succ == YAHOO_LOGIN_PASSWD) {
                        errstr = "Incorrect Yahoo! password";
                } else if (succ == YAHOO_LOGIN_LOCK) {
                        errstr = "Yahoo! account locked";
                } else if (succ == 1236) {
                        errstr = "Yahoo! account locked or machine temporarily banned";
                } else if (succ == YAHOO_LOGIN_DUPL) {
                        errstr = "Logged in on a different machine or device";
                } else if (succ == YAHOO_LOGIN_SOCK) {
                        errstr = "Socket problem";
                        allow_reconnect = TRUE;
                } else {
                        errstr = "Unknown error";
                }

                if (url && *url) {
                        imcb_error(ic, "Error %d (%s). See %s for more information.", succ, errstr, url);
                } else {
                        imcb_error(ic, "Error %d (%s)", succ, errstr);
                }

                imc_logout(ic, allow_reconnect);
        }
}

void ext_yahoo_got_buddies(int id, YList *buds)
{
        struct im_connection *ic = byahoo_get_ic_by_id(id);
        struct byahoo_data *yd = ic->proto_data;
        YList *bl = buds;

        while (bl) {
                struct yahoo_buddy *b = bl->data;
                struct byahoo_buddygroups *bg;

                if (strcmp(b->group, BYAHOO_DEFAULT_GROUP) != 0) {
                        bg = g_new0(struct byahoo_buddygroups, 1);

                        bg->buddy = g_strdup(b->id);
                        bg->group = g_strdup(b->group);
                        yd->buddygroups = g_slist_append(yd->buddygroups, bg);
                }

                imcb_add_buddy(ic, b->id, b->group);
                imcb_rename_buddy(ic, b->id, b->real_name);

                bl = bl->next;
        }
}

void ext_yahoo_got_identities(int id, YList *ids)
{
}

void ext_yahoo_got_cookies(int id)
{
}

void ext_yahoo_status_changed(int id, const char *who, int stat, const char *msg, int away, int idle, int mobile)
{
        struct im_connection *ic = byahoo_get_ic_by_id(id);
        char *state_string = NULL;
        int flags = OPT_LOGGED_IN;

        if (away) {
                flags |= OPT_AWAY;
        }
        if (mobile) {
                flags |= OPT_MOBILE;
        }

        switch (stat) {
        case YAHOO_STATUS_BRB:
                state_string = "Be Right Back";
                break;
        case YAHOO_STATUS_BUSY:
                state_string = "Busy";
                break;
        case YAHOO_STATUS_NOTATHOME:
                state_string = "Not At Home";
                break;
        case YAHOO_STATUS_NOTATDESK:
                state_string = "Not At Desk";
                break;
        case YAHOO_STATUS_NOTINOFFICE:
                state_string = "Not In Office";
                break;
        case YAHOO_STATUS_ONPHONE:
                state_string = "On Phone";
                break;
        case YAHOO_STATUS_ONVACATION:
                state_string = "On Vacation";
                break;
        case YAHOO_STATUS_OUTTOLUNCH:
                state_string = "Out To Lunch";
                break;
        case YAHOO_STATUS_STEPPEDOUT:
                state_string = "Stepped Out";
                break;
        case YAHOO_STATUS_INVISIBLE:
                state_string = "Invisible";
                break;
        case YAHOO_STATUS_CUSTOM:
                state_string = "Away";
                break;
        case YAHOO_STATUS_IDLE:
                state_string = "Idle";
                break;
        case YAHOO_STATUS_OFFLINE:
                state_string = "Offline";
                flags = 0;
                break;
        }

        imcb_buddy_status(ic, who, flags, state_string, msg);

        if (stat == YAHOO_STATUS_IDLE) {
                imcb_buddy_times(ic, who, 0, idle);
        }
}

void ext_yahoo_got_buzz(int id, const char *me, const char *who, long tm)
{
}

void ext_yahoo_got_im(int id, const char *me, const char *who, const char *msg, long tm, int stat, int utf8)
{
        struct im_connection *ic = byahoo_get_ic_by_id(id);
        char *m;

        if (msg) {
                m = byahoo_strip(msg);
                imcb_buddy_msg(ic, (char *) who, (char *) m, 0, 0);
                g_free(m);
        }
}

void ext_yahoo_got_file(int id, const char *ignored, const char *who, const char *msg,
                        const char *fname, unsigned long fesize, char *trid)
{
        struct im_connection *ic = byahoo_get_ic_by_id(id);

        imcb_log(ic, "Got a file transfer (file = %s) from %s. Ignoring for now due to lack of support.", fname, who);
}

void ext_yahoo_got_ft_data(int id, const unsigned char *in, int len, void *data)
{
}

void ext_yahoo_file_transfer_done(int id, int result, void *data)
{
}

void ext_yahoo_typing_notify(int id, const char *ignored, const char *who, int stat)
{
        struct im_connection *ic = byahoo_get_ic_by_id(id);

        if (stat == 1) {
                imcb_buddy_typing(ic, (char *) who, OPT_TYPING);
        } else {
                imcb_buddy_typing(ic, (char *) who, 0);
        }
}

void ext_yahoo_system_message(int id, const char *me, const char *who, const char *msg)
{
        struct im_connection *ic = byahoo_get_ic_by_id(id);

        imcb_log(ic, "Yahoo! system message: %s", msg);
}

void ext_yahoo_webcam_invite(int id, const char *ignored, const char *from)
{
        struct im_connection *ic = byahoo_get_ic_by_id(id);

        imcb_log(ic, "Got a webcam invitation from %s. IRC+webcams is a no-no though...", from);
}

void ext_yahoo_error(int id, const char *err, int fatal, int num)
{
        struct im_connection *ic = byahoo_get_ic_by_id(id);

        imcb_error(ic, "%s", err);
}

/* TODO: Clear up the mess of inp and d structures */
int ext_yahoo_add_handler(int id, void *fd_, yahoo_input_condition cond, void *data)
{
        struct byahoo_input_data *inp = g_new0(struct byahoo_input_data, 1);
        int fd = (long) fd_;

        if (cond == YAHOO_INPUT_READ) {
                struct byahoo_read_ready_data *d = g_new0(struct byahoo_read_ready_data, 1);

                d->id = id;
                d->fd = fd;
                d->data = data;

                inp->d = d;
                d->tag = inp->h = b_input_add(fd, B_EV_IO_READ, (b_event_handler) byahoo_read_ready_callback,
                                              (gpointer) d);
        } else if (cond == YAHOO_INPUT_WRITE) {
                struct byahoo_write_ready_data *d = g_new0(struct byahoo_write_ready_data, 1);

                d->id = id;
                d->fd = fd;
                d->data = data;

                inp->d = d;
                d->tag = inp->h =
                                 b_input_add(fd, B_EV_IO_WRITE, (b_event_handler) byahoo_write_ready_callback,
                                             (gpointer) d);
        } else {
                g_free(inp);
                return -1;
                /* Panic... */
        }

        byahoo_inputs = g_slist_append(byahoo_inputs, inp);
        return inp->h;
}

void ext_yahoo_remove_handler(int id, int tag)
{
        struct byahoo_input_data *inp;
        GSList *l = byahoo_inputs;

        while (l) {
                inp = l->data;
                if (inp->h == tag) {
                        byahoo_inputs = g_slist_remove(byahoo_inputs, inp);
                        g_free(inp->d);
                        g_free(inp);
                        break;
                }
                l = l->next;
        }

        b_event_remove(tag);
}

int ext_yahoo_connect_async(int id, const char *host, int port, yahoo_connect_callback callback, void *data,
                            int use_ssl)
{
        struct byahoo_connect_callback_data *d;
        int fd;

        d = g_new0(struct byahoo_connect_callback_data, 1);
        if ((fd = proxy_connect(host, port, (b_event_handler) byahoo_connect_callback, (gpointer) d)) < 0) {
                g_free(d);
                return(fd);
        }
        d->fd = fd;
        d->callback = callback;
        d->data = data;
        d->id = id;

        return fd;
}

char *ext_yahoo_get_ip_addr(const char *domain)
{
        return NULL;
}

int ext_yahoo_write(void *fd, char *buf, int len)
{
        return write((long) fd, buf, len);
}

int ext_yahoo_read(void *fd, char *buf, int len)
{
        return read((long) fd, buf, len);
}

void ext_yahoo_close(void *fd)
{
        close((long) fd);
}

void ext_yahoo_got_buddy_change_group(int id, const char *me, const char *who,
                                      const char *old_group, const char *new_group)
{
        struct im_connection *ic = byahoo_get_ic_by_id(id);

        imcb_add_buddy(ic, who, new_group);
}

static void byahoo_accept_conf(void *data)
{
        struct byahoo_conf_invitation *inv = data;
        struct groupchat *b = NULL;
        GSList *l;

        for (l = inv->ic->groupchats; l; l = l->next) {
                b = l->data;
                if (b == inv->c) {
                        break;
                }
        }

        if (b != NULL) {
                yahoo_conference_logon(inv->yid, NULL, inv->members, inv->name);
                imcb_chat_add_buddy(inv->c, inv->ic->acc->user);
        } else {
                imcb_log(inv->ic, "Duplicate/corrupted invitation to `%s'.", inv->name);
        }

        g_free(inv->name);
        g_free(inv);
}

static void byahoo_reject_conf(void *data)
{
        struct byahoo_conf_invitation *inv = data;

        yahoo_conference_decline(inv->yid, NULL, inv->members, inv->name, "User rejected groupchat");
        imcb_chat_free(inv->c);
        g_free(inv->name);
        g_free(inv);
}

void ext_yahoo_got_conf_invite(int id, const char *ignored,
                               const char *who, const char *room, const char *msg, YList *members)
{
        struct im_connection *ic = byahoo_get_ic_by_id(id);
        struct byahoo_conf_invitation *inv;
        char txt[1024];
        YList *m;

        if (g_strcasecmp(who, ic->acc->user) == 0) {
                /* WTF, Yahoo! seems to echo these now? */
                return;
        }

        inv = g_malloc(sizeof(struct byahoo_conf_invitation));
        memset(inv, 0, sizeof(struct byahoo_conf_invitation));
        inv->name = g_strdup(room);
        inv->c = imcb_chat_new(ic, (char *) room);
        inv->c->data = members;
        inv->yid = id;
        inv->members = members;
        inv->ic = ic;

        for (m = members; m; m = m->next) {
                if (g_strcasecmp(m->data, ic->acc->user) != 0) {
                        imcb_chat_add_buddy(inv->c, m->data);
                }
        }

        g_snprintf(txt, 1024, "Got an invitation to chatroom %s from %s: %s", room, who, msg);

        imcb_ask(ic, txt, inv, byahoo_accept_conf, byahoo_reject_conf);
}

void ext_yahoo_conf_userdecline(int id, const char *ignored, const char *who, const char *room, const char *msg)
{
        struct im_connection *ic = byahoo_get_ic_by_id(id);

        imcb_log(ic, "Invite to chatroom %s rejected by %s: %s", room, who, msg);
}

void ext_yahoo_conf_userjoin(int id, const char *ignored, const char *who, const char *room)
{
        struct im_connection *ic = byahoo_get_ic_by_id(id);
        struct groupchat *c = bee_chat_by_title(ic->bee, ic, room);

        if (c) {
                imcb_chat_add_buddy(c, (char *) who);
        }
}

void ext_yahoo_conf_userleave(int id, const char *ignored, const char *who, const char *room)

{
        struct im_connection *ic = byahoo_get_ic_by_id(id);
        struct groupchat *c = bee_chat_by_title(ic->bee, ic, room);

        if (c) {
                imcb_chat_remove_buddy(c, (char *) who, "");
        }
}

void ext_yahoo_conf_message(int id, const char *ignored, const char *who, const char *room, const char *msg, int utf8)
{
        struct im_connection *ic = byahoo_get_ic_by_id(id);
        char *m = byahoo_strip(msg);
        struct groupchat *c = bee_chat_by_title(ic->bee, ic, room);

        if (c) {
                imcb_chat_msg(c, (char *) who, (char *) m, 0, 0);
        }
        g_free(m);
}

void ext_yahoo_chat_cat_xml(int id, const char *xml)
{
}

void ext_yahoo_chat_join(int id, const char *who, const char *room, const char *topic, YList *members, void *fd)
{
}

void ext_yahoo_chat_userjoin(int id, const char *me, const char *room, struct yahoo_chat_member *who)
{
        free(who->id);
        free(who->alias);
        free(who->location);
        free(who);
}

void ext_yahoo_chat_userleave(int id, const char *me, const char *room, const char *who)
{
}

void ext_yahoo_chat_message(int id, const char *me, const char *who, const char *room, const char *msg, int msgtype,
                            int utf8)
{
}

void ext_yahoo_chat_yahoologout(int id, const char *me)
{
}

void ext_yahoo_chat_yahooerror(int id, const char *me)
{
}

void ext_yahoo_contact_added(int id, const char *myid, const char *who, const char *msg)
{
        struct im_connection *ic = byahoo_get_ic_by_id(id);

        imcb_ask_auth(ic, who, msg);
}

void ext_yahoo_rejected(int id, const char *who, const char *msg)
{
}

void ext_yahoo_game_notify(int id, const char *me, const char *who, int stat, const char *msg)
{
}

void ext_yahoo_mail_notify(int id, const char *from, const char *subj, int cnt)
{
        struct im_connection *ic = byahoo_get_ic_by_id(id);

        if (from && subj) {
                imcb_notify_email(ic, "Received e-mail message from %s with subject `%s'", from, subj);
        } else if (cnt > 0) {
                imcb_notify_email(ic, "Received %d new e-mails", cnt);
        }
}

void ext_yahoo_webcam_invite_reply(int id, const char *me, const char *from, int accept)
{
}

void ext_yahoo_webcam_closed(int id, const char *who, int reason)
{
}

void ext_yahoo_got_search_result(int id, int found, int start, int total, YList *contacts)
{
}

void ext_yahoo_webcam_viewer(int id, const char *who, int connect)
{
}

void ext_yahoo_webcam_data_request(int id, int send)
{
}

int ext_yahoo_log(const char *fmt, ...)
{
        return(0);
}

void ext_yahoo_got_webcam_image(int id, const char * who, const unsigned char *image, unsigned int image_size,
                                unsigned int real_size, unsigned int timestamp)
{
}

void ext_yahoo_got_ping(int id, const char *msg)
{
}

void ext_yahoo_got_buddyicon(int id, const char *me, const char *who, const char *url, int checksum)
{
}
void ext_yahoo_got_buddyicon_checksum(int id, const char *me, const char *who, int checksum)
{
}

void ext_yahoo_got_buddyicon_request(int id, const char *me, const char *who)
{
}
void ext_yahoo_buddyicon_uploaded(int id, const char *url)
{
}