pidgin/pidgin

Not sure how `make release` worked in the past but this should fix it for now.
release-2.x.y v2.14.1
2020-06-11, Gary Kramlich
f902de8a1b5e
Not sure how `make release` worked in the past but this should fix it for now.
/*
* 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 0x000d - Handle ChatNav.
*
* The ChatNav(igation) service does various things to keep chat
* alive. It provides room information, room searching and creating,
* as well as giving users the right ("permission") to use chat.
*
*/
#include "oscar.h"
static int
error(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs)
{
int ret = 0;
aim_snac_t *snac2;
guint16 error, chatnav_error;
GSList *tlvlist;
snac2 = aim_remsnac(od, snac->id);
if (!snac2) {
purple_debug_warning("oscar", "chatnav error: received response to unknown request (%08x)\n", snac->id);
return 0;
}
if (snac2->family != SNAC_FAMILY_CHATNAV) {
purple_debug_warning("oscar", "chatnav error: received response that maps to corrupt request (fam=%04x)\n", snac2->family);
g_free(snac2->data);
g_free(snac2);
return 0;
}
/*
* We now know what the original SNAC subtype was.
*/
if (snac2->type == 0x0008) /* create room */
{
error = byte_stream_get16(bs);
tlvlist = aim_tlvlist_read(bs);
chatnav_error = aim_tlv_get16(tlvlist, 0x0008, 1);
purple_debug_warning("oscar",
"Could not join room, error=0x%04hx, chatnav_error=0x%04hx\n",
error, chatnav_error);
purple_notify_error(od->gc, NULL, _("Could not join chat room"),
chatnav_error == 0x0033 ? _("Invalid chat room name") : _("Unknown error"));
ret = 1;
}
g_free(snac2->data);
g_free(snac2);
return ret;
}
/*
* Subtype 0x0002
*
* conn must be a chatnav connection!
*
*/
void aim_chatnav_reqrights(OscarData *od, FlapConnection *conn)
{
aim_genericreq_n_snacid(od, conn, SNAC_FAMILY_CHATNAV, 0x0002);
}
/*
* Subtype 0x0008
*/
int aim_chatnav_createroom(OscarData *od, FlapConnection *conn, const char *name, guint16 exchange)
{
static const char ck[] = {"create"};
static const char lang[] = {"en"};
static const char charset[] = {"us-ascii"};
ByteStream bs;
aim_snacid_t snacid;
GSList *tlvlist = NULL;
byte_stream_new(&bs, 1142);
snacid = aim_cachesnac(od, SNAC_FAMILY_CHATNAV, 0x0008, 0x0000, NULL, 0);
/* exchange */
byte_stream_put16(&bs, exchange);
/*
* This looks to be a big hack. You'll note that this entire
* SNAC is just a room info structure, but the hard room name,
* here, is set to "create".
*
* Either this goes on the "list of questions concerning
* why-the-hell-did-you-do-that", or this value is completely
* ignored. Without experimental evidence, but a good knowledge of
* AOL style, I'm going to guess that it is the latter, and that
* the value of the room name in create requests is ignored.
*/
byte_stream_put8(&bs, strlen(ck));
byte_stream_putstr(&bs, ck);
/*
* instance
*
* Setting this to 0xffff apparently assigns the last instance.
*
*/
byte_stream_put16(&bs, 0xffff);
/* detail level */
byte_stream_put8(&bs, 0x01);
aim_tlvlist_add_str(&tlvlist, 0x00d3, name);
aim_tlvlist_add_str(&tlvlist, 0x00d6, charset);
aim_tlvlist_add_str(&tlvlist, 0x00d7, lang);
/* tlvcount */
byte_stream_put16(&bs, aim_tlvlist_count(tlvlist));
aim_tlvlist_write(&bs, &tlvlist);
aim_tlvlist_free(tlvlist);
flap_connection_send_snac(od, conn, SNAC_FAMILY_CHATNAV, 0x0008, snacid, &bs);
byte_stream_destroy(&bs);
return 0;
}
static int
parseinfo_perms(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs, aim_snac_t *snac2)
{
aim_rxcallback_t userfunc;
int ret = 0;
struct aim_chat_exchangeinfo *exchanges = NULL;
int curexchange;
aim_tlv_t *exchangetlv;
guint8 maxrooms = 0;
GSList *tlvlist, *innerlist;
tlvlist = aim_tlvlist_read(bs);
/*
* Type 0x0002: Maximum concurrent rooms.
*/
if (aim_tlv_gettlv(tlvlist, 0x0002, 1))
maxrooms = aim_tlv_get8(tlvlist, 0x0002, 1);
/*
* Type 0x0003: Exchange information
*
* There can be any number of these, each one
* representing another exchange.
*
*/
for (curexchange = 0; ((exchangetlv = aim_tlv_gettlv(tlvlist, 0x0003, curexchange+1))); ) {
ByteStream tbs;
byte_stream_init(&tbs, exchangetlv->value, exchangetlv->length);
curexchange++;
exchanges = g_realloc(exchanges, curexchange * sizeof(struct aim_chat_exchangeinfo));
/* exchange number */
exchanges[curexchange-1].number = byte_stream_get16(&tbs);
innerlist = aim_tlvlist_read(&tbs);
/*
* Type 0x0002: Unknown
*/
if (aim_tlv_gettlv(innerlist, 0x0002, 1)) {
guint16 classperms;
classperms = aim_tlv_get16(innerlist, 0x0002, 1);
purple_debug_misc("oscar", "faim: class permissions %x\n", classperms);
}
/*
* Type 0x00c9: Flags
*
* 1 Evilable
* 2 Nav Only
* 4 Instancing Allowed
* 8 Occupant Peek Allowed
*
*/
if (aim_tlv_gettlv(innerlist, 0x00c9, 1))
exchanges[curexchange-1].flags = aim_tlv_get16(innerlist, 0x00c9, 1);
/*
* Type 0x00d3: Exchange Description
*/
if (aim_tlv_gettlv(innerlist, 0x00d3, 1))
exchanges[curexchange-1].name = aim_tlv_getstr(innerlist, 0x00d3, 1);
else
exchanges[curexchange-1].name = NULL;
/*
* Type 0x00d5: Creation Permissions
*
* 0 Creation not allowed
* 1 Room creation allowed
* 2 Exchange creation allowed
*
*/
if (aim_tlv_gettlv(innerlist, 0x00d5, 1))
aim_tlv_get8(innerlist, 0x00d5, 1); /* createperms */
/*
* Type 0x00d6: Character Set (First Time)
*/
if (aim_tlv_gettlv(innerlist, 0x00d6, 1))
exchanges[curexchange-1].charset1 = aim_tlv_getstr(innerlist, 0x00d6, 1);
else
exchanges[curexchange-1].charset1 = NULL;
/*
* Type 0x00d7: Language (First Time)
*/
if (aim_tlv_gettlv(innerlist, 0x00d7, 1))
exchanges[curexchange-1].lang1 = aim_tlv_getstr(innerlist, 0x00d7, 1);
else
exchanges[curexchange-1].lang1 = NULL;
/*
* Type 0x00d8: Character Set (Second Time)
*/
if (aim_tlv_gettlv(innerlist, 0x00d8, 1))
exchanges[curexchange-1].charset2 = aim_tlv_getstr(innerlist, 0x00d8, 1);
else
exchanges[curexchange-1].charset2 = NULL;
/*
* Type 0x00d9: Language (Second Time)
*/
if (aim_tlv_gettlv(innerlist, 0x00d9, 1))
exchanges[curexchange-1].lang2 = aim_tlv_getstr(innerlist, 0x00d9, 1);
else
exchanges[curexchange-1].lang2 = NULL;
aim_tlvlist_free(innerlist);
}
/*
* Call client.
*/
if ((userfunc = aim_callhandler(od, snac->family, snac->subtype)))
ret = userfunc(od, conn, frame, snac2->type, maxrooms, curexchange, exchanges);
for (curexchange--; curexchange >= 0; curexchange--) {
g_free(exchanges[curexchange].name);
g_free(exchanges[curexchange].charset1);
g_free(exchanges[curexchange].lang1);
g_free(exchanges[curexchange].charset2);
g_free(exchanges[curexchange].lang2);
}
g_free(exchanges);
aim_tlvlist_free(tlvlist);
return ret;
}
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;
}
/*
* Subtype 0x0009
*
* Since multiple things can trigger this callback, we must lookup the
* snacid to determine the original snac subtype that was called.
*
* XXX This isn't really how this works. But this is: Every d/9 response
* has a 16bit value at the beginning. That matches to:
* Short Desc = 1
* Full Desc = 2
* Instance Info = 4
* Nav Short Desc = 8
* Nav Instance Info = 16
* And then everything is really asynchronous. There is no specific
* attachment of a response to a create room request, for example. Creating
* the room yields no different a response than requesting the room's info.
*
*/
static int
parseinfo(OscarData *od, FlapConnection *conn, aim_module_t *mod, FlapFrame *frame, aim_modsnac_t *snac, ByteStream *bs)
{
aim_snac_t *snac2;
int ret = 0;
if (!(snac2 = aim_remsnac(od, snac->id))) {
purple_debug_misc("oscar", "faim: chatnav_parse_info: received response to unknown request! (%08x)\n", snac->id);
return 0;
}
if (snac2->family != SNAC_FAMILY_CHATNAV) {
purple_debug_misc("oscar", "faim: chatnav_parse_info: received response that maps to corrupt request! (fam=%04x)\n", snac2->family);
g_free(snac2->data);
g_free(snac2);
return 0;
}
/*
* We now know what the original SNAC subtype was.
*/
if (snac2->type == 0x0002) /* request chat rights */
ret = parseinfo_perms(od, conn, mod, frame, snac, bs, snac2);
else if (snac2->type == 0x0003) /* request exchange info */
purple_debug_misc("oscar", "chatnav_parse_info: response to exchange info\n");
else if (snac2->type == 0x0004) /* request room info */
purple_debug_misc("oscar", "chatnav_parse_info: response to room info\n");
else if (snac2->type == 0x0005) /* request more room info */
purple_debug_misc("oscar", "chatnav_parse_info: response to more room info\n");
else if (snac2->type == 0x0006) /* request occupant list */
purple_debug_misc("oscar", "chatnav_parse_info: response to occupant info\n");
else if (snac2->type == 0x0007) /* search for a room */
purple_debug_misc("oscar", "chatnav_parse_info: search results\n");
else if (snac2->type == 0x0008) /* create room */
ret = parseinfo_create(od, conn, mod, frame, snac, bs, snac2);
else
purple_debug_misc("oscar", "chatnav_parse_info: unknown request subtype (%04x)\n", snac2->type);
if (snac2)
g_free(snac2->data);
g_free(snac2);
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 == 0x0009)
return parseinfo(od, conn, mod, frame, snac, bs);
return 0;
}
int
chatnav_modfirst(OscarData *od, aim_module_t *mod)
{
mod->family = SNAC_FAMILY_CHATNAV;
mod->version = 0x0001;
mod->toolid = 0x0010;
mod->toolversion = 0x0629;
mod->flags = 0;
strncpy(mod->name, "chatnav", sizeof(mod->name));
mod->snachandler = snachandler;
return 0;
}