HGKeeper

* 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 0x0004 - Routines for sending/receiving Instant Messages.

* Note the term ICBM (Inter-Client Basic Message) which blankets

* all types of generically routed through-server messages. Within

* the ICBM types (family 4), a channel is defined. Each channel

* represents a different type of message. Channel 1 is used for

* what would commonly be called an "instant message". Channel 2

* is used for negotiating "rendezvous". These transactions end in

* something more complex happening, such as a chat invitation, or

* a file transfer. Channel 3 is used for chat messages (not in

* the same family as these channels). Channel 4 is used for

* various ICQ messages. Examples are normal messages, URLs, and

* old-style authorization.

* In addition to the channel, every ICBM contains a cookie. For

* standard IMs, these are only used for error messages. However,

* the more complex rendezvous messages make suitably more complex

* use of this field.

* TODO: Split this up into an im.c file an an icbm.c file. It

* will be beautiful, you'll see.

* Make sure flap_connection_findbygroup is used by all functions.

#include "encoding.h"

#include "oscar.h"

#include "peer.h"

#ifdef _WIN32

#include "win32dep.h"

#endif

#include "util.h"

static const char * const errcodereason[] = {

N_("Invalid error"),

N_("Not logged in"),

N_("Cannot receive IM due to parental controls"),

N_("Cannot send SMS without accepting terms"),

N_("Cannot send SMS"), /* SMS_WITHOUT_DISCLAIMER is weird */

N_("Cannot send SMS to this country"),

N_("Unknown error"), /* Undocumented */

N_("Cannot send SMS to unknown country"),

N_("Bot accounts cannot initiate IMs"),

N_("Bot account cannot IM this user"),

N_("Bot account reached IM limit"),

N_("Bot account reached daily IM limit"),

N_("Bot account reached monthly IM limit"),

N_("Unable to receive offline messages"),

N_("Offline message store full")

};

static const int errcodereasonlen = G_N_ELEMENTS(errcodereason);

/**

* Add a standard ICBM header to the given bstream with the given

* information.

* @param bs The bstream to write the ICBM header to.

* @param c c is for cookie, and cookie is for me.

* @param channel The ICBM channel (1 through 4).

* @param bn Null-terminated scrizeen nizame.

* @return The number of bytes written. It's really not useful.

static int aim_im_puticbm(ByteStream *bs, const guchar *c, guint16 channel, const char *bn)

{

byte_stream_putraw(bs, c, 8);

byte_stream_put16(bs, channel);

byte_stream_put8(bs, strlen(bn));

byte_stream_putstr(bs, bn);

return 8+2+1+strlen(bn);

}

/**

* Generates a random ICBM cookie in a character array of length 8

* and copies it into the variable passed as cookie

* TODO: Maybe we should stop limiting our characters to the visible range?

void aim_icbm_makecookie(guchar *cookie)

{

int i;

/* Should be like "21CBF95" and null terminated */

for (i = 0; i < 7; i++)

cookie[i] = 0x30 + ((guchar)rand() % 10);

cookie[7] = '\0';

}

* Subtype 0x0001 - Error

static int

error(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs)

{

aim_snac_t *snac2;

guint16 reason, errcode = 0;

const char *bn;

GSList *tlvlist;

PurpleConnection *gc = od->gc;

#ifdef TODOFT

PurpleXfer *xfer;

#endif

const char *reason_str;

char *buf;

snac2 = aim_remsnac(od, snac->id);

if (!snac2) {

purple_debug_misc("oscar", "icbm error: received response from unknown request!\n");

return 1;

}

if (snac2->family != SNAC_FAMILY_ICBM) {

purple_debug_misc("oscar", "icbm error: received response from invalid request! %d\n", snac2->family);

g_free(snac2->data);

g_free(snac2);

return 1;

}

/* Data is assumed to be the destination bn */

bn = snac2->data;

if (!bn || bn[0] == '\0') {

purple_debug_misc("oscar", "icbm error: received response from request without a buddy name!\n");

g_free(snac2->data);

g_free(snac2);

return 1;

}

reason = byte_stream_get16(bs);

tlvlist = aim_tlvlist_read(bs);

if (aim_tlv_gettlv(tlvlist, 0x0008, 1))

errcode = aim_tlv_get16(tlvlist, 0x0008, 1);

aim_tlvlist_free(tlvlist);

purple_debug_error("oscar",

"Message error with bn %s and reason %hu and errcode %hu\n",

bn, reason, errcode);

#ifdef TODOFT

/* If this was a file transfer request, bn is a cookie */

if ((xfer = oscar_find_xfer_by_cookie(od->file_transfers, bn))) {

purple_xfer_cancel_remote(xfer);

return 1;

}

#endif

/* Notify the user that the message wasn't delivered */

reason_str = oscar_get_msgerr_reason(reason);

if (errcode != 0 && errcode < errcodereasonlen)

buf = g_strdup_printf(_("Unable to send message: %s (%s)"), reason_str,

_(errcodereason[errcode]));

else

buf = g_strdup_printf(_("Unable to send message: %s"), reason_str);

if (!purple_conv_present_error(bn, purple_connection_get_account(gc), buf)) {

g_free(buf);

if (errcode != 0 && errcode < errcodereasonlen)

buf = g_strdup_printf(_("Unable to send message to %s: %s (%s)"),

bn ? bn : "(unknown)", reason_str,

_(errcodereason[errcode]));

else

buf = g_strdup_printf(_("Unable to send message to %s: %s"),

bn ? bn : "(unknown)", reason_str);

purple_notify_error(od->gc, NULL, buf, reason_str);

}

g_free(buf);

g_free(snac2->data);

g_free(snac2);

return 1;

}

/**

* Subtype 0x0002 - Set ICBM parameters.

* I definitely recommend sending this. If you don't, you'll be stuck

* with the rather unreasonable defaults.

int aim_im_setparams(OscarData *od, struct aim_icbmparameters *params)

{

FlapConnection *conn;

ByteStream bs;

aim_snacid_t snacid;

if (!od || !(conn = flap_connection_findbygroup(od, SNAC_FAMILY_ICBM)))

return -EINVAL;

if (!params)

return -EINVAL;

byte_stream_new(&bs, 16);

/* This is read-only (see Parameter Reply). Must be set to zero here. */

byte_stream_put16(&bs, 0x0000);

/* These are all read-write */

byte_stream_put32(&bs, params->flags);

byte_stream_put16(&bs, params->maxmsglen);

byte_stream_put16(&bs, params->maxsenderwarn);

byte_stream_put16(&bs, params->maxrecverwarn);

byte_stream_put32(&bs, params->minmsginterval);

snacid = aim_cachesnac(od, SNAC_FAMILY_ICBM, 0x0002, 0x0000, NULL, 0);

flap_connection_send_snac(od, conn, SNAC_FAMILY_ICBM, 0x0002, snacid, &bs);

byte_stream_destroy(&bs);

return 0;

}

/**

* Subtype 0x0004 - Request ICBM parameter information.

int aim_im_reqparams(OscarData *od)

{

FlapConnection *conn;

if (!od || !(conn = flap_connection_findbygroup(od, SNAC_FAMILY_ICBM)))

return -EINVAL;

aim_genericreq_n_snacid(od, conn, SNAC_FAMILY_ICBM, 0x0004);

return 0;

}

/**

* Subtype 0x0005 - Receive parameter information.

static int aim_im_paraminfo(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs)

{

struct aim_icbmparameters params;

params.maxchan = byte_stream_get16(bs);

params.flags = byte_stream_get32(bs);

params.maxmsglen = byte_stream_get16(bs);

params.maxsenderwarn = byte_stream_get16(bs);

params.maxrecverwarn = byte_stream_get16(bs);

params.minmsginterval = byte_stream_get32(bs);

params.flags = AIM_IMPARAM_FLAG_CHANNEL_MSGS_ALLOWED

| AIM_IMPARAM_FLAG_MISSED_CALLS_ENABLED

| AIM_IMPARAM_FLAG_EVENTS_ALLOWED

| AIM_IMPARAM_FLAG_SMS_SUPPORTED

| AIM_IMPARAM_FLAG_OFFLINE_MSGS_ALLOWED

| AIM_IMPARAM_FLAG_USE_HTML_FOR_ICQ;

params.maxmsglen = 8000;

params.minmsginterval = 0;

aim_im_setparams(od, &params);

return 0;

}

/**

* Subtype 0x0006 - Send an ICBM (instant message).

* Possible flags:

* AIM_IMFLAGS_AWAY -- Marks the message as an autoresponse

* AIM_IMFLAGS_OFFLINE--If destination is offline, store it until they are

* online (probably ICQ only).

* Implementation note: Since this is one of the most-used functions

* in all of libfaim, it is written with performance in mind. As such,

* it is not as clear as it could be in respect to how this message is

* supposed to be layed out. Most obviously, tlvlists should be used

* instead of writing out the bytes manually.

int aim_im_sendch1_ext(OscarData *od, struct aim_sendimext_args *args)

{

FlapConnection *conn;

aim_snacid_t snacid;

ByteStream data;

guchar cookie[8];

int msgtlvlen;

if (!od || !(conn = flap_connection_findbygroup(od, SNAC_FAMILY_ICBM)))

return -EINVAL;

if (!args)

return -EINVAL;

if (!args->msg || (args->msglen <= 0))

return -EINVAL;

if (args->msglen > MAXMSGLEN)

return -E2BIG;

/* Painfully calculate the size of the message TLV */

msgtlvlen = 1 + 1; /* 0501 */

msgtlvlen += 2 + args->featureslen;

msgtlvlen += 2 /* 0101 */ + 2 /* block len */;

msgtlvlen += 4 /* charset */ + args->msglen;

byte_stream_new(&data, msgtlvlen + 128);

/* Generate an ICBM cookie */

aim_icbm_makecookie(cookie);

/* ICBM header */

aim_im_puticbm(&data, cookie, 0x0001, args->destbn);

/* Message TLV (type 0x0002) */

byte_stream_put16(&data, 0x0002);

byte_stream_put16(&data, msgtlvlen);

/* Features TLV (type 0x0501) */

byte_stream_put16(&data, 0x0501);

byte_stream_put16(&data, args->featureslen);

byte_stream_putraw(&data, args->features, args->featureslen);

/* Insert message text in a TLV (type 0x0101) */

byte_stream_put16(&data, 0x0101);

/* Message block length */

byte_stream_put16(&data, args->msglen + 0x04);

/* Character set */

byte_stream_put16(&data, args->charset);

/* Character subset -- we always use 0 here */

byte_stream_put16(&data, 0x0);

/* Message. Not terminated */

byte_stream_putraw(&data, (guchar *)args->msg, args->msglen);

/* Set the Autoresponse flag */

if (args->flags & AIM_IMFLAGS_AWAY) {

byte_stream_put16(&data, 0x0004);

byte_stream_put16(&data, 0x0000);

} else {

/* Set the Request Acknowledge flag */

byte_stream_put16(&data, 0x0003);

byte_stream_put16(&data, 0x0000);

if (args->flags & AIM_IMFLAGS_OFFLINE) {

/* Allow this message to be queued as an offline message */

byte_stream_put16(&data, 0x0006);

byte_stream_put16(&data, 0x0000);

}

* Set the I HAVE A REALLY PURTY ICON flag.

* XXX - This should really only be sent on initial

* IMs and when you change your icon.

if (args->flags & AIM_IMFLAGS_HASICON) {

byte_stream_put16(&data, 0x0008);

byte_stream_put16(&data, 0x000c);

byte_stream_put32(&data, args->iconlen);

byte_stream_put16(&data, 0x0001);

byte_stream_put16(&data, args->iconsum);

byte_stream_put32(&data, args->iconstamp);

}

* Set the Buddy Icon Requested flag.

* XXX - Every time? Surely not...

if (args->flags & AIM_IMFLAGS_BUDDYREQ) {

byte_stream_put16(&data, 0x0009);

byte_stream_put16(&data, 0x0000);

}

/* XXX - should be optional */

snacid = aim_cachesnac(od, SNAC_FAMILY_ICBM, 0x0006, 0x0000, args->destbn, strlen(args->destbn)+1);

flap_connection_send_snac(od, conn, SNAC_FAMILY_ICBM, 0x0006, snacid, &data);

byte_stream_destroy(&data);

/* clean out SNACs over 60sec old */

aim_cleansnacs(od, 60);

return 0;

}

* Subtype 0x0006 - Send a chat invitation.

int aim_im_sendch2_chatinvite(OscarData *od, const char *bn, const char *msg, guint16 exchange, const char *roomname, guint16 instance)

{

FlapConnection *conn;

ByteStream bs;

aim_snacid_t snacid;

IcbmCookie *msgcookie;

struct aim_invite_priv *priv;

guchar cookie[8];

GSList *outer_tlvlist = NULL, *inner_tlvlist = NULL;

ByteStream hdrbs;

if (!od || !(conn = flap_connection_findbygroup(od, SNAC_FAMILY_ICBM)))

return -EINVAL;

if (!bn || !msg || !roomname)

return -EINVAL;

aim_icbm_makecookie(cookie);

byte_stream_new(&bs, 1142+strlen(bn)+strlen(roomname)+strlen(msg));

snacid = aim_cachesnac(od, SNAC_FAMILY_ICBM, 0x0006, 0x0000, bn, strlen(bn)+1);

/* XXX should be uncached by an unwritten 'invite accept' handler */

priv = g_malloc(sizeof(struct aim_invite_priv));

priv->bn = g_strdup(bn);

priv->roomname = g_strdup(roomname);

priv->exchange = exchange;

priv->instance = instance;

if ((msgcookie = aim_mkcookie(cookie, AIM_COOKIETYPE_INVITE, priv)))

aim_cachecookie(od, msgcookie);

else

g_free(priv);

/* ICBM Header */

aim_im_puticbm(&bs, cookie, 0x0002, bn);

* TLV t(0005)

* Everything else is inside this TLV.

* Sigh. AOL was rather inconsistent right here. So we have

* to play some minor tricks. Right inside the type 5 is some

* raw data, followed by a series of TLVs.

byte_stream_new(&hdrbs, 2+8+16+6+4+4+strlen(msg)+4+2+1+strlen(roomname)+2);

byte_stream_put16(&hdrbs, 0x0000); /* Unknown! */

byte_stream_putraw(&hdrbs, cookie, sizeof(cookie)); /* I think... */

byte_stream_putcaps(&hdrbs, OSCAR_CAPABILITY_CHAT);

aim_tlvlist_add_16(&inner_tlvlist, 0x000a, 0x0001);

aim_tlvlist_add_noval(&inner_tlvlist, 0x000f);

aim_tlvlist_add_str(&inner_tlvlist, 0x000c, msg);

aim_tlvlist_add_chatroom(&inner_tlvlist, 0x2711, exchange, roomname, instance);

aim_tlvlist_write(&hdrbs, &inner_tlvlist);

aim_tlvlist_add_raw(&outer_tlvlist, 0x0005, byte_stream_curpos(&hdrbs), hdrbs.data);

byte_stream_destroy(&hdrbs);

aim_tlvlist_write(&bs, &outer_tlvlist);

aim_tlvlist_free(inner_tlvlist);

aim_tlvlist_free(outer_tlvlist);

flap_connection_send_snac(od, conn, SNAC_FAMILY_ICBM, 0x0006, snacid, &bs);

byte_stream_destroy(&bs);

return 0;

}

/**

* Subtype 0x0006 - Send your icon to a given user.

* This is also performance sensitive. (If you can believe it...)

int aim_im_sendch2_icon(OscarData *od, const char *bn, const guint8 *icon, int iconlen, time_t stamp, guint16 iconsum)

{

FlapConnection *conn;

ByteStream bs;

aim_snacid_t snacid;

guchar cookie[8];

if (!od || !(conn = flap_connection_findbygroup(od, SNAC_FAMILY_ICBM)))

return -EINVAL;

if (!bn || !icon || (iconlen <= 0) || (iconlen >= MAXICONLEN))

return -EINVAL;

aim_icbm_makecookie(cookie);

byte_stream_new(&bs, 8+2+1+strlen(bn)+2+2+2+8+16+2+2+2+2+2+2+2+4+4+4+iconlen+strlen(AIM_ICONIDENT)+2+2);

snacid = aim_cachesnac(od, SNAC_FAMILY_ICBM, 0x0006, 0x0000, NULL, 0);

/* ICBM header */

aim_im_puticbm(&bs, cookie, 0x0002, bn);

* TLV t(0005)

* Encompasses everything below.

byte_stream_put16(&bs, 0x0005);

byte_stream_put16(&bs, 2+8+16+6+4+4+iconlen+4+4+4+strlen(AIM_ICONIDENT));

byte_stream_put16(&bs, 0x0000);

byte_stream_putraw(&bs, cookie, 8);

byte_stream_putcaps(&bs, OSCAR_CAPABILITY_BUDDYICON);

/* TLV t(000a) */

byte_stream_put16(&bs, 0x000a);

byte_stream_put16(&bs, 0x0002);

byte_stream_put16(&bs, 0x0001);

/* TLV t(000f) */

byte_stream_put16(&bs, 0x000f);

byte_stream_put16(&bs, 0x0000);

/* TLV t(2711) */

byte_stream_put16(&bs, 0x2711);

byte_stream_put16(&bs, 4+4+4+iconlen+strlen(AIM_ICONIDENT));

byte_stream_put16(&bs, 0x0000);

byte_stream_put16(&bs, iconsum);

byte_stream_put32(&bs, iconlen);

byte_stream_put32(&bs, stamp);

byte_stream_putraw(&bs, icon, iconlen);

byte_stream_putstr(&bs, AIM_ICONIDENT);

/* TLV t(0003) */

byte_stream_put16(&bs, 0x0003);

byte_stream_put16(&bs, 0x0000);

flap_connection_send_snac(od, conn, SNAC_FAMILY_ICBM, 0x0006, snacid, &bs);

byte_stream_destroy(&bs);

return 0;

}

/**

* Cancel a rendezvous invitation. It could be an invitation to

* establish a direct connection, or a file-send, or a chat invite.

void

aim_im_sendch2_cancel(PeerConnection *peer_conn)

{

OscarData *od;

FlapConnection *conn;

ByteStream bs;

aim_snacid_t snacid;

GSList *outer_tlvlist = NULL, *inner_tlvlist = NULL;

ByteStream hdrbs;

od = peer_conn->od;

conn = flap_connection_findbygroup(od, SNAC_FAMILY_ICBM);

if (conn == NULL)

return;

byte_stream_new(&bs, 118+strlen(peer_conn->bn));

snacid = aim_cachesnac(od, SNAC_FAMILY_ICBM, 0x0006, 0x0000, NULL, 0);

/* ICBM header */

aim_im_puticbm(&bs, peer_conn->cookie, 0x0002, peer_conn->bn);

aim_tlvlist_add_noval(&outer_tlvlist, 0x0003);

byte_stream_new(&hdrbs, 64);

byte_stream_put16(&hdrbs, AIM_RENDEZVOUS_CANCEL);

byte_stream_putraw(&hdrbs, peer_conn->cookie, 8);

byte_stream_putcaps(&hdrbs, peer_conn->type);

/* This TLV means "cancel!" */

aim_tlvlist_add_16(&inner_tlvlist, 0x000b, 0x0001);

aim_tlvlist_write(&hdrbs, &inner_tlvlist);

aim_tlvlist_add_raw(&outer_tlvlist, 0x0005, byte_stream_curpos(&hdrbs), hdrbs.data);

byte_stream_destroy(&hdrbs);

aim_tlvlist_write(&bs, &outer_tlvlist);

aim_tlvlist_free(inner_tlvlist);

aim_tlvlist_free(outer_tlvlist);

flap_connection_send_snac(od, conn, SNAC_FAMILY_ICBM, 0x0006, snacid, &bs);

byte_stream_destroy(&bs);

}

/**

* Subtype 0x0006 - Send an "I accept and I've connected to

* you" message.

void

aim_im_sendch2_connected(PeerConnection *peer_conn)

{

OscarData *od;

FlapConnection *conn;

ByteStream bs;

aim_snacid_t snacid;

od = peer_conn->od;

conn = flap_connection_findbygroup(od, SNAC_FAMILY_ICBM);

if (conn == NULL)

return;

byte_stream_new(&bs, 11+strlen(peer_conn->bn) + 4+2+8+16);

snacid = aim_cachesnac(od, SNAC_FAMILY_ICBM, 0x0006, 0x0000, NULL, 0);

/* ICBM header */

aim_im_puticbm(&bs, peer_conn->cookie, 0x0002, peer_conn->bn);

byte_stream_put16(&bs, 0x0005);

byte_stream_put16(&bs, 0x001a);

byte_stream_put16(&bs, AIM_RENDEZVOUS_CONNECTED);

byte_stream_putraw(&bs, peer_conn->cookie, 8);

byte_stream_putcaps(&bs, peer_conn->type);

flap_connection_send_snac(od, conn, SNAC_FAMILY_ICBM, 0x0006, snacid, &bs);

byte_stream_destroy(&bs);

}

/**

* Subtype 0x0006 - Send a direct connect rendezvous ICBM. This

* could have a number of meanings, depending on the content:

* "I want you to connect to me"

* "I want to connect to you"

* "I want to connect through a proxy server"

void

aim_im_sendch2_odc_requestdirect(OscarData *od, guchar *cookie, const char *bn, const guint8 *ip, guint16 port, guint16 requestnumber)

{

FlapConnection *conn;

ByteStream bs;

aim_snacid_t snacid;

GSList *outer_tlvlist = NULL, *inner_tlvlist = NULL;

ByteStream hdrbs;

conn = flap_connection_findbygroup(od, SNAC_FAMILY_ICBM);

if (conn == NULL)

return;

byte_stream_new(&bs, 246+strlen(bn));

snacid = aim_cachesnac(od, SNAC_FAMILY_ICBM, 0x0006, 0x0000, NULL, 0);

/* ICBM header */

aim_im_puticbm(&bs, cookie, 0x0002, bn);

aim_tlvlist_add_noval(&outer_tlvlist, 0x0003);

byte_stream_new(&hdrbs, 128);

byte_stream_put16(&hdrbs, AIM_RENDEZVOUS_PROPOSE);

byte_stream_putraw(&hdrbs, cookie, 8);

byte_stream_putcaps(&hdrbs, OSCAR_CAPABILITY_DIRECTIM);

aim_tlvlist_add_raw(&inner_tlvlist, 0x0002, 4, ip);

aim_tlvlist_add_raw(&inner_tlvlist, 0x0003, 4, ip);

aim_tlvlist_add_16(&inner_tlvlist, 0x0005, port);

aim_tlvlist_add_16(&inner_tlvlist, 0x000a, requestnumber);

aim_tlvlist_add_noval(&inner_tlvlist, 0x000f);

aim_tlvlist_write(&hdrbs, &inner_tlvlist);

aim_tlvlist_add_raw(&outer_tlvlist, 0x0005, byte_stream_curpos(&hdrbs), hdrbs.data);

byte_stream_destroy(&hdrbs);

aim_tlvlist_write(&bs, &outer_tlvlist);

aim_tlvlist_free(inner_tlvlist);

aim_tlvlist_free(outer_tlvlist);

flap_connection_send_snac(od, conn, SNAC_FAMILY_ICBM, 0x0006, snacid, &bs);

byte_stream_destroy(&bs);

}

/**

* Subtype 0x0006 - Send a direct connect rendezvous ICBM asking the

* remote user to connect to us via a proxy server.

void

aim_im_sendch2_odc_requestproxy(OscarData *od, guchar *cookie, const char *bn, const guint8 *ip, guint16 pin, guint16 requestnumber)

{

FlapConnection *conn;

ByteStream bs;

aim_snacid_t snacid;

GSList *outer_tlvlist = NULL, *inner_tlvlist = NULL;

ByteStream hdrbs;

guint8 ip_comp[4];

conn = flap_connection_findbygroup(od, SNAC_FAMILY_ICBM);

if (conn == NULL)

return;

byte_stream_new(&bs, 246+strlen(bn));

snacid = aim_cachesnac(od, SNAC_FAMILY_ICBM, 0x0006, 0x0000, NULL, 0);

/* ICBM header */

aim_im_puticbm(&bs, cookie, 0x0002, bn);

aim_tlvlist_add_noval(&outer_tlvlist, 0x0003);

byte_stream_new(&hdrbs, 128);

byte_stream_put16(&hdrbs, AIM_RENDEZVOUS_PROPOSE);

byte_stream_putraw(&hdrbs, cookie, 8);

byte_stream_putcaps(&hdrbs, OSCAR_CAPABILITY_DIRECTIM);

aim_tlvlist_add_raw(&inner_tlvlist, 0x0002, 4, ip);

aim_tlvlist_add_raw(&inner_tlvlist, 0x0003, 4, ip);

aim_tlvlist_add_16(&inner_tlvlist, 0x0005, pin);

aim_tlvlist_add_16(&inner_tlvlist, 0x000a, requestnumber);

aim_tlvlist_add_noval(&inner_tlvlist, 0x000f);

aim_tlvlist_add_noval(&inner_tlvlist, 0x0010);

/* Send the bitwise complement of the port and ip. As a check? */

ip_comp[0] = ~ip[0];

ip_comp[1] = ~ip[1];

ip_comp[2] = ~ip[2];

ip_comp[3] = ~ip[3];

aim_tlvlist_add_raw(&inner_tlvlist, 0x0016, 4, ip_comp);

aim_tlvlist_add_16(&inner_tlvlist, 0x0017, ~pin);

aim_tlvlist_write(&hdrbs, &inner_tlvlist);

aim_tlvlist_add_raw(&outer_tlvlist, 0x0005, byte_stream_curpos(&hdrbs), hdrbs.data);

byte_stream_destroy(&hdrbs);

aim_tlvlist_write(&bs, &outer_tlvlist);

aim_tlvlist_free(inner_tlvlist);

aim_tlvlist_free(outer_tlvlist);

flap_connection_send_snac(od, conn, SNAC_FAMILY_ICBM, 0x0006, snacid, &bs);

byte_stream_destroy(&bs);

}

/**

* Subtype 0x0006 - Send an "I want to send you this file" message

void

aim_im_sendch2_sendfile_requestdirect(OscarData *od, guchar *cookie, const char *bn, const guint8 *ip, guint16 port, guint16 requestnumber, const gchar *filename, guint32 size, guint16 numfiles)

{

FlapConnection *conn;

ByteStream bs;

aim_snacid_t snacid;

GSList *outer_tlvlist = NULL, *inner_tlvlist = NULL;

ByteStream hdrbs;

g_return_if_fail(bn != NULL);

g_return_if_fail(ip != NULL);

conn = flap_connection_findbygroup(od, SNAC_FAMILY_ICBM);

if (conn == NULL)

return;

byte_stream_new(&bs, 1014);

snacid = aim_cachesnac(od, SNAC_FAMILY_ICBM, 0x0006, 0x0000, NULL, 0);

/* ICBM header */

aim_im_puticbm(&bs, cookie, 0x0002, bn);

aim_tlvlist_add_noval(&outer_tlvlist, 0x0003);

byte_stream_new(&hdrbs, 512);

byte_stream_put16(&hdrbs, AIM_RENDEZVOUS_PROPOSE);

byte_stream_putraw(&hdrbs, cookie, 8);

byte_stream_putcaps(&hdrbs, OSCAR_CAPABILITY_SENDFILE);

aim_tlvlist_add_raw(&inner_tlvlist, 0x0002, 4, ip);

aim_tlvlist_add_raw(&inner_tlvlist, 0x0003, 4, ip);

aim_tlvlist_add_16(&inner_tlvlist, 0x0005, port);

aim_tlvlist_add_16(&inner_tlvlist, 0x000a, requestnumber);

aim_tlvlist_add_noval(&inner_tlvlist, 0x000f);

/* TODO: Send 0x0016 and 0x0017 */

if (filename != NULL)

{

ByteStream inner_bs;

/* Begin TLV t(2711) */

byte_stream_new(&inner_bs, 2+2+4+strlen(filename)+1);

byte_stream_put16(&inner_bs, (numfiles > 1) ? 0x0002 : 0x0001);

byte_stream_put16(&inner_bs, numfiles);

byte_stream_put32(&inner_bs, size);

/* Filename - NULL terminated, for some odd reason */

byte_stream_putstr(&inner_bs, filename);

byte_stream_put8(&inner_bs, 0x00);

aim_tlvlist_add_raw(&inner_tlvlist, 0x2711, inner_bs.len, inner_bs.data);

byte_stream_destroy(&inner_bs);

/* End TLV t(2711) */

}

aim_tlvlist_write(&hdrbs, &inner_tlvlist);

aim_tlvlist_add_raw(&outer_tlvlist, 0x0005, byte_stream_curpos(&hdrbs), hdrbs.data);

byte_stream_destroy(&hdrbs);

aim_tlvlist_write(&bs, &outer_tlvlist);

aim_tlvlist_free(inner_tlvlist);

aim_tlvlist_free(outer_tlvlist);

flap_connection_send_snac(od, conn, SNAC_FAMILY_ICBM, 0x0006, snacid, &bs);

byte_stream_destroy(&bs);

}

/**

* Subtype 0x0006 - Send a sendfile connect rendezvous ICBM asking the

* remote user to connect to us via a proxy server.

void

aim_im_sendch2_sendfile_requestproxy(OscarData *od, guchar *cookie, const char *bn, const guint8 *ip, guint16 pin, guint16 requestnumber, const gchar *filename, guint32 size, guint16 numfiles)

{

FlapConnection *conn;

ByteStream bs;

aim_snacid_t snacid;

GSList *outer_tlvlist = NULL, *inner_tlvlist = NULL;

ByteStream hdrbs;

guint8 ip_comp[4];

conn = flap_connection_findbygroup(od, SNAC_FAMILY_ICBM);

if (conn == NULL)

return;

byte_stream_new(&bs, 1014);

snacid = aim_cachesnac(od, SNAC_FAMILY_ICBM, 0x0006, 0x0000, NULL, 0);

/* ICBM header */

aim_im_puticbm(&bs, cookie, 0x0002, bn);

aim_tlvlist_add_noval(&outer_tlvlist, 0x0003);

byte_stream_new(&hdrbs, 512);

byte_stream_put16(&hdrbs, AIM_RENDEZVOUS_PROPOSE);

byte_stream_putraw(&hdrbs, cookie, 8);

byte_stream_putcaps(&hdrbs, OSCAR_CAPABILITY_SENDFILE);

aim_tlvlist_add_raw(&inner_tlvlist, 0x0002, 4, ip);

aim_tlvlist_add_raw(&inner_tlvlist, 0x0003, 4, ip);

aim_tlvlist_add_16(&inner_tlvlist, 0x0005, pin);

aim_tlvlist_add_16(&inner_tlvlist, 0x000a, requestnumber);

aim_tlvlist_add_noval(&inner_tlvlist, 0x000f);

aim_tlvlist_add_noval(&inner_tlvlist, 0x0010);

/* Send the bitwise complement of the port and ip. As a check? */

ip_comp[0] = ~ip[0];

ip_comp[1] = ~ip[1];

ip_comp[2] = ~ip[2];

ip_comp[3] = ~ip[3];

aim_tlvlist_add_raw(&inner_tlvlist, 0x0016, 4, ip_comp);

aim_tlvlist_add_16(&inner_tlvlist, 0x0017, ~pin);

if (filename != NULL)

{

ByteStream filename_bs;

/* Begin TLV t(2711) */

byte_stream_new(&filename_bs, 2+2+4+strlen(filename)+1);

byte_stream_put16(&filename_bs, (numfiles > 1) ? 0x0002 : 0x0001);

byte_stream_put16(&filename_bs, numfiles);

byte_stream_put32(&filename_bs, size);

/* Filename - NULL terminated, for some odd reason */

byte_stream_putstr(&filename_bs, filename);

byte_stream_put8(&filename_bs, 0x00);

aim_tlvlist_add_raw(&inner_tlvlist, 0x2711, filename_bs.len, filename_bs.data);

byte_stream_destroy(&filename_bs);

/* End TLV t(2711) */

}

aim_tlvlist_write(&hdrbs, &inner_tlvlist);

aim_tlvlist_add_raw(&outer_tlvlist, 0x0005, byte_stream_curpos(&hdrbs), hdrbs.data);

byte_stream_destroy(&hdrbs);

aim_tlvlist_write(&bs, &outer_tlvlist);

aim_tlvlist_free(inner_tlvlist);

aim_tlvlist_free(outer_tlvlist);

flap_connection_send_snac(od, conn, SNAC_FAMILY_ICBM, 0x0006, snacid, &bs);

byte_stream_destroy(&bs);

}

static void

incomingim_ch1_parsemsg(OscarData *od, aim_userinfo_t *userinfo, ByteStream *message, struct aim_incomingim_ch1_args *args)

{

PurpleAccount *account = purple_connection_get_account(od->gc);

* We're interested in the inner TLV 0x101, which contains precious, precious message.

while (byte_stream_bytes_left(message) >= 4) {

guint16 type = byte_stream_get16(message);

guint16 length = byte_stream_get16(message);

if (type == 0x101) {

gchar *msg;

guint16 msglen = length - 4; /* charset + charsubset */

guint16 charset = byte_stream_get16(message);

byte_stream_advance(message, 2); /* charsubset */

msg = byte_stream_getstr(message, msglen);

args->msg = oscar_decode_im(account, userinfo->bn, charset, msg, msglen);

g_free(msg);

} else {

byte_stream_advance(message, length);

}

static int

incomingim_ch1(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, guint16 channel, aim_userinfo_t *userinfo, ByteStream *bs, guint8 *cookie)

{

guint16 type, length;

aim_rxcallback_t userfunc;

int ret = 0;

struct aim_incomingim_ch1_args args;

unsigned int endpos;

memset(&args, 0, sizeof(args));

* This used to be done using tlvchains. For performance reasons,

* I've changed it to process the TLVs in-place. This avoids lots

* of per-IM memory allocations.

while (byte_stream_bytes_left(bs) >= 4)

{

type = byte_stream_get16(bs);

length = byte_stream_get16(bs);

if (length > byte_stream_bytes_left(bs))

{

purple_debug_misc("oscar", "Received an IM containing an invalid message part from %s. They are probably trying to do something malicious.\n", userinfo->bn);

break;

}

endpos = byte_stream_curpos(bs) + length;

if (type == 0x0002) { /* Message Block */

ByteStream tlv02;

byte_stream_init(&tlv02, bs->data + bs->offset, length);

incomingim_ch1_parsemsg(od, userinfo, &tlv02, &args);

} else if (type == 0x0003) { /* Server Ack Requested */

args.icbmflags |= AIM_IMFLAGS_ACK;

} else if (type == 0x0004) { /* Message is Auto Response */

args.icbmflags |= AIM_IMFLAGS_AWAY;

} else if (type == 0x0006) { /* Message was received offline. */

* This flag is set on incoming offline messages for both

* AIM and ICQ accounts.

args.icbmflags |= AIM_IMFLAGS_OFFLINE;

} else if (type == 0x0008) { /* I-HAVE-A-REALLY-PURTY-ICON Flag */

args.iconlen = byte_stream_get32(bs);

byte_stream_get16(bs); /* 0x0001 */

args.iconsum = byte_stream_get16(bs);

args.iconstamp = byte_stream_get32(bs);

* This looks to be a client bug. MacAIM 4.3 will

* send this tag, but with all zero values, in the

* first message of a conversation. This makes no

* sense whatsoever, so I'm going to say its a bug.

* You really shouldn't advertise a zero-length icon

* anyway.

if (args.iconlen)

args.icbmflags |= AIM_IMFLAGS_HASICON;

} else if (type == 0x0009) {

args.icbmflags |= AIM_IMFLAGS_BUDDYREQ;

} else if (type == 0x000b) { /* Non-direct connect typing notification */

args.icbmflags |= AIM_IMFLAGS_TYPINGNOT;

} else if (type == 0x0016) {

* UTC timestamp for when the message was sent. Only

* provided for offline messages.

args.timestamp = byte_stream_get32(bs);

}

* This is here to protect ourselves from ourselves. That

* is, if something above doesn't completely parse its value

* section, or, worse, overparses it, this will set the

* stream where it needs to be in order to land on the next

* TLV when the loop continues.

byte_stream_setpos(bs, endpos);

}

if ((userfunc = aim_callhandler(od, snac->family, snac->subtype)))

ret = userfunc(od, conn, frame, channel, userinfo, &args);

g_free(args.msg);

return ret;

}

static void

incomingim_ch2_buddylist(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, aim_userinfo_t *userinfo, IcbmArgsCh2 *args, ByteStream *servdata)

{

* This goes like this...

* group name length

* group name

* num of buddies in group

* buddy name length

* buddy name

* buddy name length

* buddy name

* ...

* group name length

* group name

* num of buddies in group

* buddy name length

* buddy name

* ...

while (byte_stream_bytes_left(servdata))

{

guint16 gnlen, numb;

int i;

char *gn;

gnlen = byte_stream_get16(servdata);

gn = byte_stream_getstr(servdata, gnlen);

numb = byte_stream_get16(servdata);

for (i = 0; i < numb; i++) {

guint16 bnlen;

char *bn;

bnlen = byte_stream_get16(servdata);

bn = byte_stream_getstr(servdata, bnlen);

purple_debug_misc("oscar", "got a buddy list from %s: group %s, buddy %s\n", userinfo->bn, gn, bn);

g_free(bn);

}

g_free(gn);

}

return;

}

static void

incomingim_ch2_buddyicon_free(OscarData *od, IcbmArgsCh2 *args)

{

g_free(args->info.icon.icon);

return;

}

static void

incomingim_ch2_buddyicon(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, aim_userinfo_t *userinfo, IcbmArgsCh2 *args, ByteStream *servdata)

{

args->info.icon.checksum = byte_stream_get32(servdata);

args->info.icon.length = byte_stream_get32(servdata);

args->info.icon.timestamp = byte_stream_get32(servdata);

args->info.icon.icon = byte_stream_getraw(servdata, args->info.icon.length);

args->destructor = (void *)incomingim_ch2_buddyicon_free;

return;

}

static void

incomingim_ch2_chat_free(OscarData *od, IcbmArgsCh2 *args)

{

/* XXX - aim_chat_roominfo_free() */

g_free(args->info.chat.roominfo.name);

return;

}

static void

incomingim_ch2_chat(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, aim_userinfo_t *userinfo, IcbmArgsCh2 *args, ByteStream *servdata)

{

* Chat room info.

aim_chat_readroominfo(servdata, &args->info.chat.roominfo);

args->destructor = (void *)incomingim_ch2_chat_free;

}

static void

incomingim_ch2_icqserverrelay_free(OscarData *od, IcbmArgsCh2 *args)

{

g_free((char *)args->info.rtfmsg.msg);

}

* The relationship between OSCAR_CAPABILITY_ICQSERVERRELAY and OSCAR_CAPABILITY_ICQRTF is

* kind of odd. This sends the client ICQRTF since that is all that I've seen

* SERVERRELAY used for.

* Note that this is all little-endian. Cringe.

static void

incomingim_ch2_icqserverrelay(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, aim_userinfo_t *userinfo, IcbmArgsCh2 *args, ByteStream *servdata)

{

guint16 hdrlen, msglen;

args->destructor = (void *)incomingim_ch2_icqserverrelay_free;

#define SKIP_HEADER(expected_hdrlen) \

hdrlen = byte_stream_getle16(servdata); \

if (hdrlen != expected_hdrlen) { \

purple_debug_warning("oscar", "Expected to find a header with length " #expected_hdrlen "; ignoring message"); \

return; \

} \

byte_stream_advance(servdata, hdrlen);

SKIP_HEADER(0x001b);

SKIP_HEADER(0x000e);

args->info.rtfmsg.msgtype = byte_stream_get8(servdata);

* Copied from http://iserverd.khstu.ru/oscar/message.html:

* xx byte message flags

* xx xx word (LE) status code

* xx xx word (LE) priority code

* We don't need any of these, so just skip them.

byte_stream_advance(servdata, 1 + 2 + 2);

msglen = byte_stream_getle16(servdata);

args->info.rtfmsg.msg = byte_stream_getstr(servdata, msglen);

}

static void

incomingim_ch2_sendfile_free(OscarData *od, IcbmArgsCh2 *args)

{

g_free(args->info.sendfile.filename);

}

/* Someone is sending us a file */

static void

incomingim_ch2_sendfile(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, aim_userinfo_t *userinfo, IcbmArgsCh2 *args, ByteStream *servdata)

{

int flen;

args->destructor = (void *)incomingim_ch2_sendfile_free;

/* Maybe there is a better way to tell what kind of sendfile

* this is? Maybe TLV t(000a)? */

/* subtype is one of AIM_OFT_SUBTYPE_* */

args->info.sendfile.subtype = byte_stream_get16(servdata);

args->info.sendfile.totfiles = byte_stream_get16(servdata);

args->info.sendfile.totsize = byte_stream_get32(servdata);

* I hope to God I'm right when I guess that there is a

* 32 char max filename length for single files. I think

* OFT tends to do that. Gotta love inconsistency. I saw

* a 26 byte filename?

/* AAA - create an byte_stream_getnullstr function (don't anymore)(maybe) */

/* Use an inelegant way of getting the null-terminated filename,

* since there's no easy bstream routine. */

for (flen = 0; byte_stream_get8(servdata); flen++);

byte_stream_advance(servdata, -flen -1);

args->info.sendfile.filename = byte_stream_getstr(servdata, flen);

/* There is sometimes more after the null-terminated filename,

* but I'm unsure of its format. */

/* I don't believe him. */

/* There is sometimes a null byte inside a unicode filename,

* but as far as I can tell the filename is the last

* piece of data that will be in this message. --Jonathan */

}

typedef void (*ch2_args_destructor_t)(OscarData *od, IcbmArgsCh2 *args);

static int incomingim_ch2(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, guint16 channel, aim_userinfo_t *userinfo, GSList *tlvlist, guint8 *cookie)

{

aim_rxcallback_t userfunc;

aim_tlv_t *block1, *servdatatlv;

GSList *list2;

aim_tlv_t *tlv;

IcbmArgsCh2 args;

ByteStream bbs, sdbs, *sdbsptr = NULL;

guint8 *cookie2;

int ret = 0;

char proxyip[30] = {""};

char clientip[30] = {""};

char verifiedip[30] = {""};

memset(&args, 0, sizeof(args));

* There's another block of TLVs embedded in the type 5 here.

block1 = aim_tlv_gettlv(tlvlist, 0x0005, 1);

if (block1 == NULL)

{

/* The server sent us ch2 ICBM without ch2 info? Weird. */

return 1;

}

byte_stream_init(&bbs, block1->value, block1->length);

* First two bytes represent the status of the connection.

* One of the AIM_RENDEZVOUS_ defines.

* 0 is a request, 1 is a cancel, 2 is an accept

args.status = byte_stream_get16(&bbs);

* Next comes the cookie. Should match the ICBM cookie.

cookie2 = byte_stream_getraw(&bbs, 8);

if (memcmp(cookie, cookie2, 8) != 0)

{

purple_debug_warning("oscar",

"Cookies don't match in rendezvous ICBM, bailing out.\n");

g_free(cookie2);

return 1;

}

memcpy(args.cookie, cookie2, 8);

g_free(cookie2);

* The next 16bytes are a capability block so we can

* identify what type of rendezvous this is.

args.type = aim_locate_getcaps(od, &bbs, 0x10);

* What follows may be TLVs or nothing, depending on the

* purpose of the message.

* Ack packets for instance have nothing more to them.

list2 = aim_tlvlist_read(&bbs);

* IP address to proxy the file transfer through.

* TODO: I don't like this. Maybe just read in an int? Or inet_ntoa...

tlv = aim_tlv_gettlv(list2, 0x0002, 1);

if ((tlv != NULL) && (tlv->length == 4))

snprintf(proxyip, sizeof(proxyip), "%hhu.%hhu.%hhu.%hhu",

tlv->value[0], tlv->value[1],

tlv->value[2], tlv->value[3]);

* IP address from the perspective of the client.

tlv = aim_tlv_gettlv(list2, 0x0003, 1);

if ((tlv != NULL) && (tlv->length == 4))

snprintf(clientip, sizeof(clientip), "%hhu.%hhu.%hhu.%hhu",

tlv->value[0], tlv->value[1],

tlv->value[2], tlv->value[3]);

* Verified IP address (from the perspective of Oscar).

* This is added by the server.

tlv = aim_tlv_gettlv(list2, 0x0004, 1);

if ((tlv != NULL) && (tlv->length == 4))

snprintf(verifiedip, sizeof(verifiedip), "%hhu.%hhu.%hhu.%hhu",

tlv->value[0], tlv->value[1],

tlv->value[2], tlv->value[3]);

* Port number for something.

if (aim_tlv_gettlv(list2, 0x0005, 1))

args.port = aim_tlv_get16(list2, 0x0005, 1);

* File transfer "request number":

* 0x0001 - Initial file transfer request for no proxy or stage 1 proxy

* 0x0002 - "Reply request" for a stage 2 proxy (receiver wants to use proxy)

* 0x0003 - A third request has been sent; applies only to stage 3 proxied transfers

if (aim_tlv_gettlv(list2, 0x000a, 1))

args.requestnumber = aim_tlv_get16(list2, 0x000a, 1);

* Terminate connection/error code. 0x0001 means the other user

* cancelled the connection.

if (aim_tlv_gettlv(list2, 0x000b, 1))

args.errorcode = aim_tlv_get16(list2, 0x000b, 1);

* Invitation message / chat description.

if (aim_tlv_gettlv(list2, 0x000c, 1)) {

args.msg = aim_tlv_getstr(list2, 0x000c, 1);

args.msglen = aim_tlv_getlength(list2, 0x000c, 1);

}

* Character set.

if (aim_tlv_gettlv(list2, 0x000d, 1))

args.encoding = aim_tlv_getstr(list2, 0x000d, 1);

* Language.

if (aim_tlv_gettlv(list2, 0x000e, 1))

args.language = aim_tlv_getstr(list2, 0x000e, 1);

* Flag meaning we should proxy the file transfer through an AIM server

if (aim_tlv_gettlv(list2, 0x0010, 1))

args.use_proxy = TRUE;

if (strlen(proxyip))

args.proxyip = (char *)proxyip;

if (strlen(clientip))

args.clientip = (char *)clientip;

if (strlen(verifiedip))

args.verifiedip = (char *)verifiedip;

* This must be present in PROPOSALs, but will probably not

* exist in CANCELs and ACCEPTs. Also exists in ICQ Lite

* Beta 4.0 URLs (OSCAR_CAPABILITY_ICQSERVERRELAY).

* Service Data blocks are module-specific in format.

if ((servdatatlv = aim_tlv_gettlv(list2, 0x2711 /* 10001 */, 1))) {

byte_stream_init(&sdbs, servdatatlv->value, servdatatlv->length);

sdbsptr = &sdbs;

* The rest of the handling depends on what type it is.

* Not all of them have special handling (yet).

if (args.type & OSCAR_CAPABILITY_BUDDYICON)

incomingim_ch2_buddyicon(od, conn, mod, frame, snac, userinfo, &args, sdbsptr);

else if (args.type & OSCAR_CAPABILITY_SENDBUDDYLIST)

incomingim_ch2_buddylist(od, conn, mod, frame, snac, userinfo, &args, sdbsptr);

else if (args.type & OSCAR_CAPABILITY_CHAT)

incomingim_ch2_chat(od, conn, mod, frame, snac, userinfo, &args, sdbsptr);

else if (args.type & OSCAR_CAPABILITY_ICQSERVERRELAY)

incomingim_ch2_icqserverrelay(od, conn, mod, frame, snac, userinfo, &args, sdbsptr);

else if (args.type & OSCAR_CAPABILITY_SENDFILE)

incomingim_ch2_sendfile(od, conn, mod, frame, snac, userinfo, &args, sdbsptr);

}

if ((userfunc = aim_callhandler(od, snac->family, snac->subtype)))

ret = userfunc(od, conn, frame, channel, userinfo, &args);

if (args.destructor)

((ch2_args_destructor_t)args.destructor)(od, &args);

g_free((char *)args.msg);

g_free((char *)args.encoding);

g_free((char *)args.language);

aim_tlvlist_free(list2);

return ret;

}

static int incomingim_ch4(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, guint16 channel, aim_userinfo_t *userinfo, GSList *tlvlist, guint8 *cookie)

{

ByteStream meat;

aim_rxcallback_t userfunc;

aim_tlv_t *block;

struct aim_incomingim_ch4_args args;

int ret = 0;

* Make a bstream for the meaty part. Yum. Meat.

if (!(block = aim_tlv_gettlv(tlvlist, 0x0005, 1)))

return -1;

byte_stream_init(&meat, block->value, block->length);

args.uin = byte_stream_getle32(&meat);

args.type = byte_stream_getle8(&meat);

args.flags = byte_stream_getle8(&meat);

if (args.type == 0x1a)

/* There seems to be a problem with the length in SMS msgs from server, this fixed it */

args.msglen = block->length - 6;

else

args.msglen = byte_stream_getle16(&meat);

args.msg = (gchar *)byte_stream_getraw(&meat, args.msglen);

if ((userfunc = aim_callhandler(od, snac->family, snac->subtype)))

ret = userfunc(od, conn, frame, channel, userinfo, &args);

g_free(args.msg);

return ret;

}

* Subtype 0x0007

* It can easily be said that parsing ICBMs is THE single

* most difficult thing to do in the in AIM protocol. In

* fact, I think I just did say that.

* Below is the best damned solution I've come up with

* over the past sixteen months of battling with it. This

* can parse both away and normal messages from every client

* I have access to. Its not fast, its not clean. But it works.

static int incomingim(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs)

{

int ret = 0;

guchar *cookie;

guint16 channel;

aim_userinfo_t userinfo;

memset(&userinfo, 0x00, sizeof(aim_userinfo_t));

* Read ICBM Cookie.

cookie = byte_stream_getraw(bs, 8);

* Channel ID.

* Channel 0x0001 is the message channel. It is

* used to send basic ICBMs.

* Channel 0x0002 is the Rendezvous channel, which

* is where Chat Invitiations and various client-client

* connection negotiations come from.

* Channel 0x0003 is used for chat messages.

* Channel 0x0004 is used for ICQ authorization, or

* possibly any system notice.

channel = byte_stream_get16(bs);

* Extract the standard user info block.

* Note that although this contains TLVs that appear contiguous

* with the TLVs read below, they are two different pieces. The

* userinfo block contains the number of TLVs that contain user

* information, the rest are not even though there is no separation.

* You can start reading the message TLVs after aim_info_extract()

* parses out the standard userinfo block.

* That also means that TLV types can be duplicated between the

* userinfo block and the rest of the message, however there should

* never be two TLVs of the same type in one block.

aim_info_extract(od, bs, &userinfo);

* From here on, its depends on what channel we're on.

* Technically all channels have a TLV list have this, however,

* for the common channel 1 case, in-place parsing is used for

* performance reasons (less memory allocation).

if (channel == 1) {

ret = incomingim_ch1(od, conn, mod, frame, snac, channel, &userinfo, bs, cookie);

} else if (channel == 2) {

GSList *tlvlist;

* Read block of TLVs (not including the userinfo data). All

* further data is derived from what is parsed here.

tlvlist = aim_tlvlist_read(bs);

ret = incomingim_ch2(od, conn, mod, frame, snac, channel, &userinfo, tlvlist, cookie);

aim_tlvlist_free(tlvlist);

} else if (channel == 4) {

GSList *tlvlist;

tlvlist = aim_tlvlist_read(bs);

ret = incomingim_ch4(od, conn, mod, frame, snac, channel, &userinfo, tlvlist, cookie);

aim_tlvlist_free(tlvlist);

} else {

purple_debug_misc("oscar", "icbm: ICBM received on an unsupported channel. Ignoring. (chan = %04x)\n", channel);

}

aim_info_free(&userinfo);

g_free(cookie);

return ret;

}

/* Subtype 0x000a */

static int missedcall(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs)

{

int ret = 0;

aim_rxcallback_t userfunc;

guint16 channel, nummissed, reason;

aim_userinfo_t userinfo;

while (byte_stream_bytes_left(bs)) {

channel = byte_stream_get16(bs);

aim_info_extract(od, bs, &userinfo);

nummissed = byte_stream_get16(bs);

reason = byte_stream_get16(bs);

if ((userfunc = aim_callhandler(od, snac->family, snac->subtype)))

ret = userfunc(od, conn, frame, channel, &userinfo, nummissed, reason);

aim_info_free(&userinfo);

}

return ret;

}

* Subtype 0x000b

* Possible codes:

* AIM_TRANSFER_DENY_DECLINE -- "client has declined transfer"

int aim_im_denytransfer(OscarData *od, const char *bn, const guchar *cookie, guint16 code)

{

FlapConnection *conn;

ByteStream bs;

aim_snacid_t snacid;

GSList *tlvlist = NULL;

if (!od || !(conn = flap_connection_findbygroup(od, SNAC_FAMILY_ICBM)))

return -EINVAL;

byte_stream_new(&bs, 8+2+1+strlen(bn)+6);

snacid = aim_cachesnac(od, SNAC_FAMILY_ICBM, 0x000b, 0x0000, NULL, 0);

byte_stream_putraw(&bs, cookie, 8);

byte_stream_put16(&bs, 0x0002); /* channel */

byte_stream_put8(&bs, strlen(bn));

byte_stream_putstr(&bs, bn);

aim_tlvlist_add_16(&tlvlist, 0x0003, code);

aim_tlvlist_write(&bs, &tlvlist);

aim_tlvlist_free(tlvlist);

flap_connection_send_snac(od, conn, SNAC_FAMILY_ICBM, 0x000b, snacid, &bs);

byte_stream_destroy(&bs);

return 0;

}

* Subtype 0x000b.

* Send confirmation for a channel 2 message (Miranda wants it by default).

void

aim_im_send_icq_confirmation(OscarData *od, const char *bn, const guchar *cookie)

{

FlapConnection *conn;

ByteStream bs;

aim_snacid_t snacid;

guint32 header_size, data_size;

guint16 cookie2 = (guint16)g_random_int();

purple_debug_misc("oscar", "Sending message ack to %s\n", bn);

header_size = 8 + 2 + 1 + strlen(bn) + 2;

data_size = 2 + 1 + 16 + 4*2 + 2*3 + 4*3 + 1*2 + 2*3 + 1;

byte_stream_new(&bs, header_size + data_size);

/* The message header. */

aim_im_puticbm(&bs, cookie, 0x0002, bn);

byte_stream_put16(&bs, 0x0003); /* reason */

/* The actual message. */

byte_stream_putle16(&bs, 0x1b); /* subheader #1 length */

byte_stream_put8(&bs, 0x08); /* protocol version */

byte_stream_putcaps(&bs, OSCAR_CAPABILITY_EMPTY);

byte_stream_put32(&bs, 0x3); /* client features */

byte_stream_put32(&bs, 0x0004); /* DC type */

byte_stream_put16(&bs, cookie2); /* a cookie, chosen by fair dice roll */

byte_stream_putle16(&bs, 0x0e); /* header #2 len? */

byte_stream_put16(&bs, cookie2); /* the same cookie again */

byte_stream_put32(&bs, 0); /* unknown */

byte_stream_put8(&bs, 0x01); /* plain text message */

byte_stream_put8(&bs, 0x00); /* no message flags */

byte_stream_put16(&bs, 0x0000); /* no icq status */

byte_stream_put16(&bs, 0x0100); /* priority */

byte_stream_putle16(&bs, 1); /* query message len */

byte_stream_put8(&bs, 0x00); /* empty query message */

snacid = aim_cachesnac(od, SNAC_FAMILY_ICBM, 0x000b, 0x0000, NULL, 0);

conn = flap_connection_findbygroup(od, SNAC_FAMILY_ICBM);

g_warn_if_fail(conn);

if (conn) {

flap_connection_send_snac(od, conn, SNAC_FAMILY_ICBM, 0x000b,

snacid, &bs);

}

byte_stream_destroy(&bs);

}

* Subtype 0x000b - Receive the response from an ICQ status message

* request (in which case this contains the ICQ status message) or

* a file transfer or direct IM request was declined.

static int clientautoresp(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs)

{

int ret = 0;

aim_rxcallback_t userfunc;

guint16 channel, reason;

char *bn;

guchar *cookie;

guint8 bnlen;

char *xml = NULL;

guint16 hdrlen;

int curpos;

guint16 num1, num2;

PurpleAccount *account;

PurpleBuddy *buddy;

PurplePresence *presence;

PurpleStatus *status;

cookie = byte_stream_getraw(bs, 8);

channel = byte_stream_get16(bs);

bnlen = byte_stream_get8(bs);

bn = byte_stream_getstr(bs, bnlen);

reason = byte_stream_get16(bs);

if (channel == 0x0002)

{

hdrlen = byte_stream_getle16(bs);

if (hdrlen == 27 && bs->len > (27 + 51)) {

byte_stream_advance(bs, 51);

num1 = byte_stream_getle16(bs);

num2 = byte_stream_getle16(bs);

purple_debug_misc("oscar", "X-Status: num1 %hu, num2 %hu\n", num1, num2);

if (num1 == 0x4f00 && num2 == 0x3b00) {

byte_stream_advance(bs, 86);

curpos = byte_stream_curpos(bs);

xml = byte_stream_getstr(bs, bs->len - curpos);

purple_debug_misc("oscar", "X-Status: Received XML reply\n");

if (xml) {

GString *xstatus;

char *tmp1, *tmp2, *unescaped_xstatus;

/* purple_debug_misc("oscar", "X-Status: XML reply: %s\n", xml); */

xstatus = g_string_new(NULL);

tmp1 = strstr(xml, "<title>");

if (tmp1 != NULL) {

tmp1 += 13;

tmp2 = strstr(tmp1, "</title>");

if (tmp2 != NULL)

g_string_append_len(xstatus, tmp1, tmp2 - tmp1);

}

tmp1 = strstr(xml, "<desc>");

if (tmp1 != NULL) {

tmp1 += 12;

tmp2 = strstr(tmp1, "</desc>");

if (tmp2 != NULL) {

if (xstatus->len > 0 && tmp2 > tmp1)

g_string_append(xstatus, " - ");

g_string_append_len(xstatus, tmp1, tmp2 - tmp1);

}

unescaped_xstatus = purple_unescape_text(xstatus->str);

g_string_free(xstatus, TRUE);

if (*unescaped_xstatus) {

purple_debug_misc("oscar", "X-Status reply: %s\n", unescaped_xstatus);

account = purple_connection_get_account(od->gc);

buddy = purple_find_buddy(account, bn);

presence = purple_buddy_get_presence(buddy);

status = purple_presence_get_status(presence, "mood");

if (status) {

purple_prpl_got_user_status(account, bn,

"mood",

PURPLE_MOOD_NAME, purple_status_get_attr_string(status, PURPLE_MOOD_NAME),

PURPLE_MOOD_COMMENT, unescaped_xstatus, NULL);

}

g_free(unescaped_xstatus);

} else {

purple_debug_misc("oscar", "X-Status: Can't get XML reply string\n");

}

} else {

purple_debug_misc("oscar", "X-Status: 0x0004, 0x000b not an xstatus reply\n");

}

} else if (channel == 0x0004) { /* ICQ message */

switch (reason) {

case 0x0003: { /* ICQ status message. Maybe other stuff too, you never know with these people. */

guint8 statusmsgtype, *msg;

guint16 len;

guint32 state;

len = byte_stream_getle16(bs); /* Should be 0x001b */

byte_stream_advance(bs, len); /* Unknown */

len = byte_stream_getle16(bs); /* Should be 0x000e */

byte_stream_advance(bs, len); /* Unknown */

statusmsgtype = byte_stream_getle8(bs);

switch (statusmsgtype) {

case 0xe8:

state = AIM_ICQ_STATE_AWAY;

break;

case 0xe9:

state = AIM_ICQ_STATE_AWAY | AIM_ICQ_STATE_BUSY;

break;

case 0xea:

state = AIM_ICQ_STATE_AWAY | AIM_ICQ_STATE_OUT;

break;

case 0xeb:

state = AIM_ICQ_STATE_AWAY | AIM_ICQ_STATE_DND | AIM_ICQ_STATE_BUSY;

break;

case 0xec:

state = AIM_ICQ_STATE_CHAT;

break;

default:

state = 0;

break;

}

byte_stream_getle8(bs); /* Unknown - 0x03 Maybe this means this is an auto-reply */

byte_stream_getle16(bs); /* Unknown - 0x0000 */

len = byte_stream_getle16(bs);

msg = byte_stream_getraw(bs, len);

if ((userfunc = aim_callhandler(od, snac->family, snac->subtype)))

ret = userfunc(od, conn, frame, channel, bn, reason, state, msg);

g_free(msg);

} break;

default: {

if ((userfunc = aim_callhandler(od, snac->family, snac->subtype)))

ret = userfunc(od, conn, frame, channel, bn, reason);

} break;

} /* end switch */

}

g_free(cookie);

g_free(bn);

g_free(xml);

return ret;

}

* Subtype 0x000c - Receive an ack after sending an ICBM. The ack contains the ICBM header of the message you sent.

static int msgack(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs)

{

guchar *cookie;

char *bn;

int ret = 0;

cookie = byte_stream_getraw(bs, 8);

byte_stream_get16(bs); /* ch */

bn = byte_stream_getstr(bs, byte_stream_get8(bs));

purple_debug_info("oscar", "Sent message to %s.\n", bn);

g_free(bn);

g_free(cookie);

return ret;

}

* Subtype 0x0010 - Request any offline messages that are waiting for

* us. This is the "new" way of handling offline messages which is

* used for both AIM and ICQ. The old way is to use the ugly

* aim_icq_reqofflinemsgs() function, but that is no longer necessary.

* We set the 0x00000100 flag on the ICBM message parameters, which

* tells the oscar servers that we support offline messages. When we

* set that flag the servers do not automatically send us offline

* messages. Instead we must request them using this function. This

* should happen after sending the 0x0001/0x0002 "client online" SNAC.

int aim_im_reqofflinemsgs(OscarData *od)

{

FlapConnection *conn;

if (!od || !(conn = flap_connection_findbygroup(od, 0x0002)))

return -EINVAL;

aim_genericreq_n(od, conn, SNAC_FAMILY_ICBM, 0x0010);

return 0;

}

* Subtype 0x0014 - Send a mini typing notification (mtn) packet.

* This is supported by winaim5 and newer, MacAIM bleh and newer, iChat bleh and newer,

* and Purple 0.60 and newer.

int aim_im_sendmtn(OscarData *od, guint16 channel, const char *bn, guint16 event)

{

FlapConnection *conn;

ByteStream bs;

aim_snacid_t snacid;

if (!od || !(conn = flap_connection_findbygroup(od, 0x0002)))

return -EINVAL;

if (!bn)

return -EINVAL;

byte_stream_new(&bs, 11 + strlen(bn) + 2);

snacid = aim_cachesnac(od, SNAC_FAMILY_ICBM, 0x0014, 0x0000, NULL, 0);

/* ICBM cookie */

byte_stream_put32(&bs, 0x00000000);

* Channel (should be 0x0001 for mtn)

byte_stream_put16(&bs, channel);

* Dest buddy name

byte_stream_put8(&bs, strlen(bn));

byte_stream_putstr(&bs, bn);

* Event (should be 0x0000, 0x0001, or 0x0002 for mtn)

byte_stream_put16(&bs, event);

flap_connection_send_snac(od, conn, SNAC_FAMILY_ICBM, 0x0014, snacid, &bs);

byte_stream_destroy(&bs);

return 0;

}

* Subtype 0x0006 - Send eXtra Status request

int icq_im_xstatus_request(OscarData *od, const char *sn)

{

FlapConnection *conn;

aim_snacid_t snacid;

guchar cookie[8];

GSList *outer_tlvlist = NULL, *inner_tlvlist = NULL;

ByteStream bs, header, plugindata;

PurpleAccount *account;

const char *fmt;

char *statxml;

int xmllen;

static const guint8 pluginid[] = {

0x09, 0x46, 0x13, 0x49, 0x4C, 0x7F, 0x11, 0xD1,

0x82, 0x22, 0x44, 0x45, 0x53, 0x54, 0x00, 0x00

};

static const guint8 c_plugindata[] = {

0x1B, 0x00, 0x0A,

0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xD1, 0x0E, 0x00, 0xF9, 0xD1, 0x00, 0x00,

0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A, 0x00, 0x00, 0x00, 0x01, 0x00,

0x01, 0x00, 0x00, 0x4F, 0x00, 0x3B, 0x60, 0xB3, 0xEF, 0xD8, 0x2A, 0x6C, 0x45, 0xA4, 0xE0, 0x9C,

0x5A, 0x5E, 0x67, 0xE8, 0x65, 0x08, 0x00, 0x2A, 0x00, 0x00, 0x00, 0x53, 0x63, 0x72, 0x69, 0x70,

0x74, 0x20, 0x50, 0x6C, 0x75, 0x67, 0x2D, 0x69, 0x6E, 0x3A, 0x20, 0x52, 0x65, 0x6D, 0x6F, 0x74,

0x65, 0x20, 0x4E, 0x6F, 0x74, 0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x69, 0x6F, 0x6E, 0x20, 0x41,

0x72, 0x72, 0x69, 0x76, 0x65, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

0x00, 0x00, 0x00, 0x00, 0x14, 0x01, 0x00, 0x00, 0x10, 0x01, 0x00, 0x00

};

if (!od || !(conn = flap_connection_findbygroup(od, 0x0004)))

return -EINVAL;

if (!sn)

return -EINVAL;

fmt = "<N><QUERY><Q><PluginID>srvMng</PluginID></Q></QUERY><NOTIFY><srv><id>cAwaySrv</id><req><id>AwayStat</id><trans>2</trans><senderId>%s</senderId></req></srv></NOTIFY></N>\r\n";

account = purple_connection_get_account(od->gc);

statxml = g_strdup_printf(fmt, account->username);

xmllen = strlen(statxml);

aim_icbm_makecookie(cookie);

byte_stream_new(&bs, 10 + 8 + 2 + 1 + strlen(sn) + 2

+ 2 + 2 + 8 + 16 + 2 + 2 + 2 + 2 + 2

+ 2 + 2 + sizeof(c_plugindata) + xmllen

+ 2 + 2);

snacid = aim_cachesnac(od, 0x0004, 0x0006, 0x0000, NULL, 0);

aim_im_puticbm(&bs, cookie, 0x0002, sn);

byte_stream_new(&header, (7*2) + 16 + 8 + 2 + sizeof(c_plugindata) + xmllen); /* TLV 0x0005 Stream + Size */

byte_stream_put16(&header, 0x0000); /* Message Type: Request */

byte_stream_putraw(&header, cookie, sizeof(cookie)); /* Message ID */

byte_stream_putraw(&header, pluginid, sizeof(pluginid)); /* Plugin ID */

aim_tlvlist_add_16(&inner_tlvlist, 0x000a, 0x0001);

aim_tlvlist_add_noval(&inner_tlvlist, 0x000f);

/* Add Plugin Specific Data */

byte_stream_new(&plugindata, (sizeof(c_plugindata) + xmllen));

byte_stream_putraw(&plugindata, c_plugindata, sizeof(c_plugindata)); /* Content of TLV 0x2711 */

byte_stream_putraw(&plugindata, (const guint8*)statxml, xmllen);

aim_tlvlist_add_raw(&inner_tlvlist, 0x2711, (sizeof(c_plugindata) + xmllen), plugindata.data);

aim_tlvlist_write(&header, &inner_tlvlist);

aim_tlvlist_free(inner_tlvlist);

aim_tlvlist_add_raw(&outer_tlvlist, 0x0005, byte_stream_curpos(&header), header.data);

aim_tlvlist_add_noval(&outer_tlvlist, 0x0003); /* Empty TLV 0x0003 */

aim_tlvlist_write(&bs, &outer_tlvlist);

purple_debug_misc("oscar", "X-Status Request\n");

flap_connection_send_snac_with_priority(od, conn, 0x0004, 0x0006, snacid, &bs, TRUE);

aim_tlvlist_free(outer_tlvlist);

byte_stream_destroy(&header);

byte_stream_destroy(&plugindata);

byte_stream_destroy(&bs);

g_free(statxml);

return 0;

}

int icq_relay_xstatus(OscarData *od, const char *sn, const guchar *cookie)

{

FlapConnection *conn;

ByteStream bs;

aim_snacid_t snacid;

PurpleAccount *account;

PurpleStatus *status;

const char *fmt;

const char *formatted_msg;

char *msg;

char *statxml;

const char *title;

int len;

static const guint8 plugindata[] = {

0x1B, 0x00,

0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

0x01, 0x00, 0x00, 0x00, 0x00, 0xF9, 0xD1, 0x0E, 0x00, 0xF9, 0xD1,

0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

0x00, 0x1A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x4F,

0x00, 0x3B, 0x60, 0xB3, 0xEF, 0xD8, 0x2A, 0x6C, 0x45, 0xA4, 0xE0,

0x9C, 0x5A, 0x5E, 0x67, 0xE8, 0x65, 0x08, 0x00, 0x2A, 0x00, 0x00,

0x00, 0x53, 0x63, 0x72, 0x69, 0x70, 0x74, 0x20, 0x50, 0x6C, 0x75,

0x67, 0x2D, 0x69, 0x6E, 0x3A, 0x20, 0x52, 0x65, 0x6D, 0x6F, 0x74,

0x65, 0x20, 0x4E, 0x6F, 0x74, 0x69, 0x66, 0x69, 0x63, 0x61, 0x74,

0x69, 0x6F, 0x6E, 0x20, 0x41, 0x72, 0x72, 0x69, 0x76, 0x65, 0x00,

0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

0x00, 0x00, 0x00, 0xF3, 0x01, 0x00, 0x00, 0xEF, 0x01, 0x00, 0x00

};

fmt = "<NR><RES><ret event='OnRemoteNotification'><srv><id>cAwaySrv</id><val srv_id='cAwaySrv'><Root><CASXtraSetAwayMessage></CASXtraSetAwayMessage>&l t;uin>%s</uin><index>1</index><title>%s</title><desc>%s</desc></Root></val></srv><srv><id>cRandomizerSrv</id><val srv_id='cRandomizerSrv'>undefined</val></srv></ret></RES></NR>\r\n";

if (!od || !(conn = flap_connection_findbygroup(od, 0x0002)))

return -EINVAL;

if (!sn)

return -EINVAL;

account = purple_connection_get_account(od->gc);

if (!account)

return -EINVAL;

/* if (purple_strequal(account->username, sn))

icq_im_xstatus_request(od, sn); */

status = purple_presence_get_active_status(account->presence);

if (!status)

return -EINVAL;

title = purple_status_get_name(status);

if (!title)

return -EINVAL;

formatted_msg = purple_status_get_attr_string(status, "message");

if (!formatted_msg)

return -EINVAL;

msg = purple_markup_strip_html(formatted_msg);

if (!msg)

return -EINVAL;

statxml = g_strdup_printf(fmt, account->username, title, msg);

len = strlen(statxml);

purple_debug_misc("oscar", "X-Status AutoReply: %s, %s\n", formatted_msg, msg);

byte_stream_new(&bs, 10 + 8 + 2 + 1 + strlen(sn) + 2 + sizeof(plugindata) + len); /* 16 extra */

snacid = aim_cachesnac(od, 0x0004, 0x000b, 0x0000, NULL, 0);

aim_im_puticbm(&bs, cookie, 0x0002, sn);

byte_stream_put16(&bs, 0x0003);

byte_stream_putraw(&bs, plugindata, sizeof(plugindata));

byte_stream_putraw(&bs, (const guint8*)statxml, len);

flap_connection_send_snac_with_priority(od, conn, 0x0004, 0x000b, snacid, &bs, TRUE);

g_free(statxml);

g_free(msg);

byte_stream_destroy(&bs);

return 0;

}

* Subtype 0x0014 - Receive a mini typing notification (mtn) packet.

* This is supported by winaim5 and newer, MacAIM bleh and newer, iChat bleh and newer,

* and Purple 0.60 and newer.

static int mtn_receive(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;

guint8 bnlen;

guint16 channel, event;

byte_stream_advance(bs, 8); /* ICBM cookie */

channel = byte_stream_get16(bs);

bnlen = byte_stream_get8(bs);

bn = byte_stream_getstr(bs, bnlen);

event = byte_stream_get16(bs);

if ((userfunc = aim_callhandler(od, snac->family, snac->subtype)))

ret = userfunc(od, conn, frame, channel, bn, event);

g_free(bn);

return ret;

}

static int

snachandler(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs)

{

if (snac->subtype == 0x0001)

return error(od, conn, mod, frame, snac, bs);

else if (snac->subtype == 0x0005)

return aim_im_paraminfo(od, conn, mod, frame, snac, bs);

else if (snac->subtype == 0x0007)

return incomingim(od, conn, mod, frame, snac, bs);

else if (snac->subtype == 0x000a)

return missedcall(od, conn, mod, frame, snac, bs);

else if (snac->subtype == 0x000b)

return clientautoresp(od, conn, mod, frame, snac, bs);

else if (snac->subtype == 0x000c)

return msgack(od, conn, mod, frame, snac, bs);

else if (snac->subtype == 0x0014)

return mtn_receive(od, conn, mod, frame, snac, bs);

return 0;

}

int

msg_modfirst(OscarData *od, aim_module_t *mod)

{

mod->family = SNAC_FAMILY_ICBM;

mod->version = 0x0001;

mod->toolid = 0x0110;

mod->toolversion = 0x0629;

mod->flags = 0;

strncpy(mod->name, "messaging", sizeof(mod->name));

mod->snachandler = snachandler;

return 0;

}

pidgin/pidgin