int
aim_chat_readroominfo(ByteStream *bs, struct aim_chat_roominfo *outinfo)
{
if (!bs || !outinfo)
return 0;
outinfo->exchange = byte_stream_get16(bs);
outinfo->namelen = byte_stream_get8(bs);
outinfo->name = (char *)byte_stream_getraw(bs, outinfo->namelen);
outinfo->instance = byte_stream_get16(bs);
return 0;
}
/*
* Subtype 0x0002 - General room information. Lots of stuff.
*
* Values I know are in here but I haven't attached
* them to any of the 'Unknown's:
* - Language (English)
*
*/
static int
infoupdate(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs)
{
aim_rxcallback_t userfunc;
int ret = 0;
guint8 detaillevel = 0;
struct aim_chat_roominfo roominfo;
GSList *tlvlist;
guint16 maxmsglen, maxvisiblemsglen;
aim_chat_readroominfo(bs, &roominfo);
detaillevel = byte_stream_get8(bs);
if (detaillevel != 0x02) {
purple_debug_misc("oscar", "faim: chat_roomupdateinfo: detail level %d not supported\n", detaillevel);
return 1;
}
byte_stream_get16(bs); /* skip the TLV count */
/*
* Everything else are TLVs.
*/
tlvlist = aim_tlvlist_read(bs);
/*
* Type 0x00d1: Maximum Message Length
*/
maxmsglen = aim_tlv_get16(tlvlist, 0x00d1, 1);
/*
* Type 0x00da: Maximum visible message length
*/
maxvisiblemsglen = aim_tlv_get16(tlvlist, 0x00da, 1);
if ((userfunc = aim_callhandler(od, snac->family, snac->subtype))) {
ret = userfunc(od, conn, frame, maxmsglen, maxvisiblemsglen);
}
g_free(roominfo.name);
aim_tlvlist_free(tlvlist);
return ret;
}
static void
dumptlv(OscarData *od, guint16 type, ByteStream *bs, guint8 len)
{
int i;
if (!od || !bs || !len)
return;
purple_debug_misc("oscar", "userinfo: type =0x%04x\n", type);
purple_debug_misc("oscar", "userinfo: length=0x%04x\n", len);
purple_debug_misc("oscar", "userinfo: value:\n");
for (i = 0; i < len; i++) {
if ((i % 8) == 0)
purple_debug_misc("oscar", "\nuserinfo: ");
purple_debug_misc("oscar", "0x%2x ", byte_stream_get8(bs));
}
purple_debug_misc("oscar", "\n");
return;
}
/*
* AIM is fairly regular about providing user info. This is a generic
* routine to extract it in its standard form.
*/
int
aim_info_extract(OscarData *od, ByteStream *bs, aim_userinfo_t *outinfo)
{
int curtlv, tlvcnt;
guint8 bnlen;
if (!bs || !outinfo)
return -EINVAL;
/* Clear out old data first */
memset(outinfo, 0x00, sizeof(aim_userinfo_t));
/*
* Username. Stored as an unterminated string prepended with a
* byte containing its length.
*/
bnlen = byte_stream_get8(bs);
outinfo->bn = byte_stream_getstr(bs, bnlen);
/*
* Warning Level. Stored as an unsigned short.
*/
outinfo->warnlevel = byte_stream_get16(bs);
/*
* TLV Count. Unsigned short representing the number of
* Type-Length-Value triples that follow.
*/
tlvcnt = byte_stream_get16(bs);
/*
* Parse out the Type-Length-Value triples as they're found.
*/
for (curtlv = 0; curtlv < tlvcnt; curtlv++) {
guint16 type, length;
int endpos;
type = byte_stream_get16(bs);
length = byte_stream_get16(bs);
endpos = byte_stream_curpos(bs) + MIN(length, byte_stream_empty(bs));
if (type == 0x0001) {
/*
* User flags
*
* Specified as any of the following ORed together:
* 0x0001 Unconfirmed account
* 0x0002 Unknown bit 2
* 0x0004 AOL Main Service user
* 0x0008 Unknown bit 4
* 0x0010 Free (AIM) user
* 0x0020 Away
* 0x0040 ICQ user (AIM bit also set)
* 0x0080 Mobile device
* 0x0400 Bot (like ActiveBuddy)
*/
outinfo->flags = byte_stream_get16(bs);
outinfo->present |= AIM_USERINFO_PRESENT_FLAGS;
} else if (type == 0x0002) {
/*
* Account creation time
*
* The time/date that the user originally registered for
* the service, stored in time_t format.
*
* I'm not sure how this differs from type 5 ("member
* since").
*
* Note: This is the field formerly known as "member
* since". All these years and I finally found out
* that I got the name wrong.
*/
outinfo->createtime = byte_stream_get32(bs);
outinfo->present |= AIM_USERINFO_PRESENT_CREATETIME;
} else if (type == 0x0003) {
/*
* On-Since date
*
* The time/date that the user started their current
* session, stored in time_t format.
*/
outinfo->onlinesince = byte_stream_get32(bs);
outinfo->present |= AIM_USERINFO_PRESENT_ONLINESINCE;
} else if (type == 0x0004) {
/*
* Idle time
*
* Number of minutes since the user actively used the
* service.
*
* Note that the client tells the server when to start
* counting idle times, so this may or may not be
* related to reality.
*/
outinfo->idletime = byte_stream_get16(bs);
outinfo->present |= AIM_USERINFO_PRESENT_IDLE;
} else if (type == 0x0005) {
/*
* Member since date
*
* The time/date that the user originally registered for
* the service, stored in time_t format.
*
* This is sometimes sent instead of type 2 ("account
* creation time"), particularly in the self-info.
* And particularly for ICQ?
*/
outinfo->membersince = byte_stream_get32(bs);
outinfo->present |= AIM_USERINFO_PRESENT_MEMBERSINCE;
} else if (type == 0x0006) {
/*
* ICQ Online Status
*
* ICQ's Away/DND/etc "enriched" status. Some decoding
* of values done by Scott <*****@*****.**>
*/
byte_stream_get16(bs);
outinfo->icqinfo.status = byte_stream_get16(bs);
outinfo->present |= AIM_USERINFO_PRESENT_ICQEXTSTATUS;
} else if (type == 0x0008) {
/*
* Client type, or some such.
*/
} else if (type == 0x000a) {
/*
* ICQ User IP Address
*
* Ahh, the joy of ICQ security.
*/
outinfo->icqinfo.ipaddr = byte_stream_get32(bs);
outinfo->present |= AIM_USERINFO_PRESENT_ICQIPADDR;
} else if (type == 0x000c) {
/*
* Random crap containing the IP address,
* apparently a port number, and some Other Stuff.
*
* Format is:
* 4 bytes - Our IP address, 0xc0 a8 01 2b for 192.168.1.43
*/
byte_stream_getrawbuf(bs, outinfo->icqinfo.crap, 0x25);
outinfo->present |= AIM_USERINFO_PRESENT_ICQDATA;
} else if (type == 0x000d) {
/*
* OSCAR Capability information
*/
outinfo->capabilities |= aim_locate_getcaps(od, bs, length);
outinfo->present |= AIM_USERINFO_PRESENT_CAPABILITIES;
} else if (type == 0x000e) {
/*
* AOL capability information
*/
} else if ((type == 0x000f) || (type == 0x0010)) {
/*
* Type = 0x000f: Session Length. (AIM)
* Type = 0x0010: Session Length. (AOL)
*
* The duration, in seconds, of the user's current
* session.
*
* Which TLV type this comes in depends on the
* service the user is using (AIM or AOL).
*/
outinfo->sessionlen = byte_stream_get32(bs);
outinfo->present |= AIM_USERINFO_PRESENT_SESSIONLEN;
} else if (type == 0x0014) {
/*
* My instance number.
*/
guint8 instance_number;
instance_number = byte_stream_get8(bs);
} else if (type == 0x0019) {
/*
* OSCAR short capability information. A shortened
* form of the normal capabilities.
*/
outinfo->capabilities |= aim_locate_getcaps_short(od, bs, length);
outinfo->present |= AIM_USERINFO_PRESENT_CAPABILITIES;
} else if (type == 0x001a) {
/*
* Type = 0x001a
*
* AOL short capability information. A shortened
* form of the normal capabilities.
*/
} else if (type == 0x001b) {
/*
* Encryption certification MD5 checksum.
*/
} else if (type == 0x001d) {
/*
* Buddy icon information and status/available messages.
*
* This almost seems like the AIM protocol guys gave
* the iChat guys a Type, and the iChat guys tried to
* cram as much cool shit into it as possible. Then
* the Windows AIM guys were like, "hey, that's
* pretty neat, let's copy those prawns."
*
* In that spirit, this can contain a custom message,
* kind of like an away message, but you're not away
* (it's called an "available" message). Or it can
* contain information about the buddy icon the user
* has stored on the server.
*/
guint16 type2;
guint8 number2, length2;
int endpos2;
/*
* Continue looping as long as we're able to read type2,
* number2, and length2.
*/
while (byte_stream_curpos(bs) + 4 <= endpos) {
type2 = byte_stream_get16(bs);
number2 = byte_stream_get8(bs);
length2 = byte_stream_get8(bs);
endpos2 = byte_stream_curpos(bs) + MIN(length2, byte_stream_empty(bs));
switch (type2) {
case 0x0000: { /* This is an official buddy icon? */
/* This is always 5 bytes of "0x02 01 d2 04 72"? */
} break;
case 0x0001: { /* A buddy icon checksum */
if ((length2 > 0) && ((number2 == 0x00) || (number2 == 0x01))) {
g_free(outinfo->iconcsum);
outinfo->iconcsumtype = number2;
outinfo->iconcsum = byte_stream_getraw(bs, length2);
outinfo->iconcsumlen = length2;
}
} break;
case 0x0002: { /* A status/available message */
g_free(outinfo->status);
g_free(outinfo->status_encoding);
if (length2 >= 4) {
outinfo->status_len = byte_stream_get16(bs);
outinfo->status = byte_stream_getstr(bs, outinfo->status_len);
if (byte_stream_get16(bs) == 0x0001) { /* We have an encoding */
byte_stream_get16(bs);
outinfo->status_encoding = byte_stream_getstr(bs, byte_stream_get16(bs));
} else {
/* No explicit encoding, client should use UTF-8 */
outinfo->status_encoding = NULL;
}
} else {
byte_stream_advance(bs, length2);
outinfo->status_len = 0;
outinfo->status = g_strdup("");
outinfo->status_encoding = NULL;
}
} break;
case 0x0009: { /* An iTunes Music Store link */
g_free(outinfo->itmsurl);
g_free(outinfo->itmsurl_encoding);
if (length2 >= 4) {
outinfo->itmsurl_len = byte_stream_get16(bs);
outinfo->itmsurl = byte_stream_getstr(bs, outinfo->itmsurl_len);
if (byte_stream_get16(bs) == 0x0001) {
/* We have an encoding */
byte_stream_get16(bs);
outinfo->itmsurl_encoding = byte_stream_getstr(bs, byte_stream_get16(bs));
} else {
/* No explicit encoding, client should use UTF-8 */
outinfo->itmsurl_encoding = NULL;
}
} else {
byte_stream_advance(bs, length2);
outinfo->itmsurl_len = 0;
outinfo->itmsurl = g_strdup("");
outinfo->itmsurl_encoding = NULL;
}
} break;
}
/* Save ourselves. */
byte_stream_setpos(bs, endpos2);
}
} else if (type == 0x001e) {
/*
* Always four bytes, but it doesn't look like an int.
*/
} else if (type == 0x001f) {
/*
* Upper bytes of user flags. Can be any size
*
* Seen on a buddy using DeadAIM. Data was 4 bytes:
* 0x00 00 00 10
*/
} else if (type == 0x0023) {
/*
* Last Buddy Feed update time, in seconds since the epoch.
*/
} else if (type == 0x0026) {
/*
* Time that the profile was set, in seconds since the epoch.
*/
} else if (type == 0x0027) {
/*
* Time that the away message was set, in seconds since the epoch.
*/
} else if (type == 0x002a) {
/*
* Country code based on GeoIP data.
*/
} else {
/*
* Reaching here indicates that either AOL has
* added yet another TLV for us to deal with,
* or the parsing has gone Terribly Wrong.
*
* Either way, inform the owner and attempt
* recovery.
*
*/
#ifdef LOG_UNKNOWN_TLV
purple_debug_misc("oscar", "userinfo: **warning: unexpected TLV:\n");
purple_debug_misc("oscar", "userinfo: bn =%s\n", outinfo->bn);
dumptlv(od, type, bs, length);
#endif
}
/* Save ourselves. */
byte_stream_setpos(bs, endpos);
}
aim_locate_adduserinfo(od, outinfo);
return 0;
}
static int
parseinfo_create(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs, aim_snac_t *snac2)
{
aim_rxcallback_t userfunc;
GSList *tlvlist, *innerlist;
char *ck = NULL, *fqcn = NULL, *name = NULL;
guint16 exchange = 0, instance = 0, unknown = 0, flags = 0, maxmsglen = 0, maxoccupancy = 0;
guint32 createtime = 0;
guint8 createperms = 0, detaillevel;
int cklen;
aim_tlv_t *bigblock;
int ret = 0;
ByteStream bbbs;
tlvlist = aim_tlvlist_read(bs);
if (!(bigblock = aim_tlv_gettlv(tlvlist, 0x0004, 1))) {
purple_debug_misc("oscar", "no bigblock in top tlv in create room response\n");
aim_tlvlist_free(tlvlist);
return 0;
}
byte_stream_init(&bbbs, bigblock->value, bigblock->length);
exchange = byte_stream_get16(&bbbs);
cklen = byte_stream_get8(&bbbs);
ck = byte_stream_getstr(&bbbs, cklen);
instance = byte_stream_get16(&bbbs);
detaillevel = byte_stream_get8(&bbbs);
if (detaillevel != 0x02) {
purple_debug_misc("oscar", "unknown detaillevel in create room response (0x%02x)\n", detaillevel);
aim_tlvlist_free(tlvlist);
g_free(ck);
return 0;
}
unknown = byte_stream_get16(&bbbs);
innerlist = aim_tlvlist_read(&bbbs);
if (aim_tlv_gettlv(innerlist, 0x006a, 1))
fqcn = aim_tlv_getstr(innerlist, 0x006a, 1);
if (aim_tlv_gettlv(innerlist, 0x00c9, 1))
flags = aim_tlv_get16(innerlist, 0x00c9, 1);
if (aim_tlv_gettlv(innerlist, 0x00ca, 1))
createtime = aim_tlv_get32(innerlist, 0x00ca, 1);
if (aim_tlv_gettlv(innerlist, 0x00d1, 1))
maxmsglen = aim_tlv_get16(innerlist, 0x00d1, 1);
if (aim_tlv_gettlv(innerlist, 0x00d2, 1))
maxoccupancy = aim_tlv_get16(innerlist, 0x00d2, 1);
if (aim_tlv_gettlv(innerlist, 0x00d3, 1))
name = aim_tlv_getstr(innerlist, 0x00d3, 1);
if (aim_tlv_gettlv(innerlist, 0x00d5, 1))
createperms = aim_tlv_get8(innerlist, 0x00d5, 1);
if ((userfunc = aim_callhandler(od, snac->family, snac->subtype))) {
ret = userfunc(od, conn, frame, snac2->type, fqcn, instance, exchange, flags, createtime, maxmsglen, maxoccupancy, createperms, unknown, name, ck);
}
g_free(ck);
g_free(name);
g_free(fqcn);
aim_tlvlist_free(innerlist);
aim_tlvlist_free(tlvlist);
return ret;
}
/**
* Handle an incoming peer proxy negotiation frame.
*/
static void
peer_proxy_recv_frame(PeerConnection *conn, ProxyFrame *frame)
{
purple_debug_info("oscar", "Incoming peer proxy frame with "
"type=0x%04hx, unknown=0x%08x, "
"flags=0x%04hx, and payload length=%hd\n", frame->type,
frame->unknown, frame->flags, frame->payload.len);
if (frame->type == PEER_PROXY_TYPE_CREATED)
{
/*
* Read in 2 byte port then 4 byte IP and tell the
* remote user to connect to it by sending an ICBM.
*/
guint16 pin;
int i;
guint8 ip[4];
pin = byte_stream_get16(&frame->payload);
for (i = 0; i < 4; i++)
ip[i] = byte_stream_get8(&frame->payload);
if (conn->type == OSCAR_CAPABILITY_DIRECTIM)
aim_im_sendch2_odc_requestproxy(conn->od,
conn->cookie,
conn->bn, ip, pin, ++conn->lastrequestnumber);
else if (conn->type == OSCAR_CAPABILITY_SENDFILE)
{
aim_im_sendch2_sendfile_requestproxy(conn->od,
conn->cookie, conn->bn,
ip, pin, ++conn->lastrequestnumber,
(const gchar *)conn->xferdata.name,
conn->xferdata.size, conn->xferdata.totfiles);
}
}
else if (frame->type == PEER_PROXY_TYPE_READY)
{
purple_input_remove(conn->watcher_incoming);
conn->watcher_incoming = 0;
peer_connection_finalize_connection(conn);
}
else if (frame->type == PEER_PROXY_TYPE_ERROR)
{
if (byte_stream_empty(&frame->payload) >= 2)
{
guint16 error;
const char *msg;
error = byte_stream_get16(&frame->payload);
if (error == 0x000d)
msg = "bad request";
else if (error == 0x0010)
msg = "initial request timed out";
else if (error == 0x001a)
msg ="accept period timed out";
else
msg = "unknown reason";
purple_debug_info("oscar", "Proxy negotiation failed with "
"error 0x%04hx: %s\n", error, msg);
}
else
{
purple_debug_warning("oscar", "Proxy negotiation failed with "
"an unknown error\n");
}
peer_connection_trynext(conn);
}
else
{
purple_debug_warning("oscar", "Unknown peer proxy frame type 0x%04hx.\n",
frame->type);
}
}
/*
* Subtype 0x0006
*
* We could probably include this in the normal ICBM parsing
* code as channel 0x0003, however, since only the start
* would be the same, we might as well do it here.
*
* General outline of this SNAC:
* snac
* cookie
* channel id
* tlvlist
* unknown
* source user info
* name
* evility
* userinfo tlvs
* online time
* etc
* message metatlv
* message tlv
* message string
* possibly others
*
*/
static int
incomingim_ch3(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs)
{
int ret = 0, i;
aim_rxcallback_t userfunc;
aim_userinfo_t userinfo;
guint8 cookie[8];
guint16 channel;
GSList *tlvlist;
char *msg = NULL;
int len = 0;
char *encoding = NULL, *language = NULL;
IcbmCookie *ck;
aim_tlv_t *tlv;
ByteStream tbs;
memset(&userinfo, 0, sizeof(aim_userinfo_t));
/*
* Read ICBM Cookie.
*/
for (i = 0; i < 8; i++)
cookie[i] = byte_stream_get8(bs);
if ((ck = aim_uncachecookie(od, cookie, AIM_COOKIETYPE_CHAT))) {
g_free(ck->data);
g_free(ck);
}
/*
* Channel ID
*
* Channel 0x0003 is used for chat messages.
*
*/
channel = byte_stream_get16(bs);
if (channel != 0x0003) {
purple_debug_misc("oscar", "faim: chat_incoming: unknown channel! (0x%04x)\n", channel);
return 0;
}
/*
* Start parsing TLVs right away.
*/
tlvlist = aim_tlvlist_read(bs);
/*
* Type 0x0003: Source User Information
*/
tlv = aim_tlv_gettlv(tlvlist, 0x0003, 1);
if (tlv != NULL)
{
byte_stream_init(&tbs, tlv->value, tlv->length);
aim_info_extract(od, &tbs, &userinfo);
}
/*
* Type 0x0005: Message Block. Conains more TLVs.
*/
tlv = aim_tlv_gettlv(tlvlist, 0x0005, 1);
if (tlv != NULL)
{
GSList *inner_tlvlist;
aim_tlv_t *inner_tlv;
byte_stream_init(&tbs, tlv->value, tlv->length);
inner_tlvlist = aim_tlvlist_read(&tbs);
/*
* Type 0x0001: Message.
*/
inner_tlv = aim_tlv_gettlv(inner_tlvlist, 0x0001, 1);
if (inner_tlv != NULL)
{
len = inner_tlv->length;
msg = aim_tlv_getvalue_as_string(inner_tlv);
}
/*
* Type 0x0002: Encoding.
*/
encoding = aim_tlv_getstr(inner_tlvlist, 0x0002, 1);
/*
* Type 0x0003: Language.
*/
language = aim_tlv_getstr(inner_tlvlist, 0x0003, 1);
aim_tlvlist_free(inner_tlvlist);
}
if ((userfunc = aim_callhandler(od, snac->family, snac->subtype)))
ret = userfunc(od, conn, frame, &userinfo, len, msg, encoding, language);
aim_info_free(&userinfo);
g_free(msg);
g_free(encoding);
g_free(language);
aim_tlvlist_free(tlvlist);
return ret;
}