pidgin/pidgin

ChangeLog the fix for PIDGIN-17437
release-2.x.y
2021-02-13, Gary Kramlich
7341787d1ead
ChangeLog the fix for PIDGIN-17437
/*
* Purple's oscar protocol plugin
* This file is the legal property of its developers.
* Please see the AUTHORS file distributed alongside this file.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
/*
* Family 0x0010 - Server stored buddy art
*
* Used for storing and retrieving your cute little buddy icon
* from the AIM servers.
*
*/
#include "oscar.h"
/**
* Subtype 0x0002 - Upload your icon.
*
* @param od The oscar session.
* @param icon The raw data of the icon image file.
* @param iconlen Length of the raw data of the icon image file.
* @return Return 0 if no errors, otherwise return the error number.
*/
int
aim_bart_upload(OscarData *od, const guint8 *icon, guint16 iconlen)
{
FlapConnection *conn;
ByteStream bs;
aim_snacid_t snacid;
if (!od || !(conn = flap_connection_findbygroup(od, SNAC_FAMILY_BART)) || !icon || !iconlen)
return -EINVAL;
byte_stream_new(&bs, 2 + 2 + iconlen);
/* The reference number for the icon */
byte_stream_put16(&bs, 1);
/* The icon */
byte_stream_put16(&bs, iconlen);
byte_stream_putraw(&bs, icon, iconlen);
snacid = aim_cachesnac(od, SNAC_FAMILY_BART, 0x0002, 0x0000, NULL, 0);
flap_connection_send_snac(od, conn, SNAC_FAMILY_BART, 0x0002, snacid, &bs);
byte_stream_destroy(&bs);
return 0;
}
/**
* Subtype 0x0003 - Acknowledgement for uploading a buddy icon.
*
* You get this honky after you upload a buddy icon.
*/
static int
uploadack(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs)
{
int ret = 0;
aim_rxcallback_t userfunc;
byte_stream_get16(bs);
byte_stream_get16(bs);
byte_stream_get8(bs);
if ((userfunc = aim_callhandler(od, snac->family, snac->subtype)))
ret = userfunc(od, conn, frame);
return ret;
}
/**
* Subtype 0x0004 - Request someone's icon.
*
* @param od The oscar session.
* @param bn The name of the buddy whose icon you are requesting.
* @param iconcsum The MD5 checksum of the icon you are requesting.
* @param iconcsumlen Length of the MD5 checksum given above. Should be 10 bytes.
* @return Return 0 if no errors, otherwise return the error number.
*/
int
aim_bart_request(OscarData *od, const char *bn, guint8 iconcsumtype, const guint8 *iconcsum, guint16 iconcsumlen)
{
FlapConnection *conn;
ByteStream bs;
aim_snacid_t snacid;
if (!od || !(conn = flap_connection_findbygroup(od, SNAC_FAMILY_BART)) || !bn || !strlen(bn) || !iconcsum || !iconcsumlen)
return -EINVAL;
byte_stream_new(&bs, 1+strlen(bn) + 4 + 1+iconcsumlen);
/* Buddy name */
byte_stream_put8(&bs, strlen(bn));
byte_stream_putstr(&bs, bn);
/* Some numbers. You like numbers, right? */
byte_stream_put8(&bs, 0x01);
byte_stream_put16(&bs, 0x0001);
byte_stream_put8(&bs, iconcsumtype);
/* Icon string */
byte_stream_put8(&bs, iconcsumlen);
byte_stream_putraw(&bs, iconcsum, iconcsumlen);
snacid = aim_cachesnac(od, SNAC_FAMILY_BART, 0x0004, 0x0000, NULL, 0);
flap_connection_send_snac(od, conn, SNAC_FAMILY_BART, 0x0004, snacid, &bs);
byte_stream_destroy(&bs);
return 0;
}
/**
* Subtype 0x0005 - Receive a buddy icon.
*
* This is sent in response to a buddy icon request.
*/
static int
parseicon(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs)
{
int ret = 0;
aim_rxcallback_t userfunc;
char *bn;
guint16 iconlen;
guint8 iconcsumtype, iconcsumlen, *iconcsum, *icon;
bn = byte_stream_getstr(bs, byte_stream_get8(bs));
byte_stream_get16(bs); /* flags */
iconcsumtype = byte_stream_get8(bs);
iconcsumlen = byte_stream_get8(bs);
iconcsum = byte_stream_getraw(bs, iconcsumlen);
iconlen = byte_stream_get16(bs);
icon = byte_stream_getraw(bs, iconlen);
if ((userfunc = aim_callhandler(od, snac->family, snac->subtype)))
ret = userfunc(od, conn, frame, bn, iconcsumtype, iconcsum, iconcsumlen, icon, iconlen);
g_free(bn);
g_free(iconcsum);
g_free(icon);
return ret;
}
static int
snachandler(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs)
{
if (snac->subtype == 0x0003)
return uploadack(od, conn, mod, frame, snac, bs);
else if (snac->subtype == 0x0005)
return parseicon(od, conn, mod, frame, snac, bs);
return 0;
}
int
bart_modfirst(OscarData *od, aim_module_t *mod)
{
mod->family = SNAC_FAMILY_BART;
mod->version = 0x0001;
mod->toolid = 0x0010;
mod->toolversion = 0x0629;
mod->flags = 0;
strncpy(mod->name, "bart", sizeof(mod->name));
mod->snachandler = snachandler;
return 0;
}