static void
bonjour_bytestreams_connect(PurpleXfer *xfer)
{
PurpleBuddy *pb;
PurpleAccount *account = NULL;
PurpleHash *hash;
XepXfer *xf;
char dstaddr[41];
const gchar *name = NULL;
unsigned char hashval[20];
char *p;
int i;
if(xfer == NULL)
return;
purple_debug_info("bonjour", "bonjour-bytestreams-connect.\n");
xf = purple_xfer_get_protocol_data(xfer);
if(!xf)
return;
pb = xf->pb;
name = purple_buddy_get_name(pb);
account = purple_buddy_get_account(pb);
p = g_strdup_printf("%s%s%s", xf->sid, name, bonjour_get_jid(account));
hash = purple_sha1_hash_new();
purple_hash_append(hash, (guchar *)p, strlen(p));
purple_hash_digest(hash, hashval, sizeof(hashval));
g_object_unref(G_OBJECT(hash));
g_free(p);
memset(dstaddr, 0, 41);
p = dstaddr;
for(i = 0; i < 20; i++, p += 2)
snprintf(p, 3, "%02x", hashval[i]);
xf->proxy_info = purple_proxy_info_new();
purple_proxy_info_set_proxy_type(xf->proxy_info, PURPLE_PROXY_SOCKS5);
purple_proxy_info_set_host(xf->proxy_info, xf->proxy_host);
purple_proxy_info_set_port(xf->proxy_info, xf->proxy_port);
xf->proxy_connection = purple_proxy_connect_socks5_account(
purple_account_get_connection(account),
account,
xf->proxy_info,
dstaddr, 0,
bonjour_bytestreams_connect_cb, xfer);
if(xf->proxy_connection == NULL) {
xep_ft_si_reject(xf->data, xf->iq_id, purple_xfer_get_remote_user(xfer), "404", "cancel");
/* Cancel the connection */
purple_xfer_cancel_local(xfer);
}
}
static gboolean bonjour_jabber_send_stream_init(BonjourJabberConversation *bconv, int client_socket)
{
int ret, len;
char *stream_start;
const char *bname = bconv->buddy_name;
if (bconv->pb != NULL)
bname = purple_buddy_get_name(bconv->pb);
/* If we have no idea who "to" is, use an empty string.
* If we don't know now, it is because the other side isn't playing nice, so they can't complain. */
if (bname == NULL)
bname = "";
stream_start = g_strdup_printf(DOCTYPE, bonjour_get_jid(bconv->account), bname);
len = strlen(stream_start);
bconv->sent_stream_start = PARTIALLY_SENT;
/* Start the stream */
ret = send(client_socket, stream_start, len, 0);
if (ret == -1 && errno == EAGAIN)
ret = 0;
else if (ret <= 0) {
const char *err = g_strerror(errno);
purple_debug_error("bonjour", "Error starting stream with buddy %s at %s error: %s\n",
(*bname) ? bname : "(unknown)", bconv->ip, err ? err : "(null)");
if (bconv->pb) {
PurpleConversation *conv;
conv = purple_find_conversation_with_account(PURPLE_CONV_TYPE_IM, bname, bconv->account);
if (conv != NULL)
purple_conversation_write(conv, NULL,
_("Unable to send the message, the conversation couldn't be started."),
PURPLE_MESSAGE_SYSTEM, time(NULL));
}
close(client_socket);
g_free(stream_start);
return FALSE;
}
/* This is unlikely to happen */
if (ret < len) {
struct _stream_start_data *ss = g_new(struct _stream_start_data, 1);
ss->msg = g_strdup(stream_start + ret);
bconv->stream_data = ss;
/* Finish sending the stream start */
bconv->tx_handler = purple_input_add(client_socket,
PURPLE_INPUT_WRITE, _start_stream, bconv);
} else
static void
bonjour_bytestreams_listen(int sock, gpointer data)
{
PurpleXfer *xfer = data;
XepXfer *xf;
XepIq *iq;
xmlnode *query, *streamhost;
gchar *port;
GSList *local_ips;
BonjourData *bd;
purple_debug_info("bonjour", "Bonjour-bytestreams-listen. sock=%d.\n", sock);
if (sock < 0 || xfer == NULL) {
/*purple_xfer_cancel_local(xfer);*/
return;
}
xfer->watcher = purple_input_add(sock, PURPLE_INPUT_READ,
bonjour_sock5_request_cb, xfer);
xf = (XepXfer*)xfer->data;
xf->listen_data = NULL;
bd = xf->data;
iq = xep_iq_new(bd, XEP_IQ_SET, xfer->who, bonjour_get_jid(bd->jabber_data->account), xf->sid);
query = xmlnode_new_child(iq->node, "query");
xmlnode_set_namespace(query, "http://jabber.org/protocol/bytestreams");
xmlnode_set_attrib(query, "sid", xf->sid);
xmlnode_set_attrib(query, "mode", "tcp");
xfer->local_port = purple_network_get_port_from_fd(sock);
local_ips = bonjour_jabber_get_local_ips(sock);
port = g_strdup_printf("%hu", (guint16)purple_xfer_get_local_port(xfer));
while(local_ips) {
streamhost = xmlnode_new_child(query, "streamhost");
xmlnode_set_attrib(streamhost, "jid", xf->sid);
xmlnode_set_attrib(streamhost, "host", local_ips->data);
xmlnode_set_attrib(streamhost, "port", port);
g_free(local_ips->data);
local_ips = g_slist_delete_link(local_ips, local_ips);
}
g_free(port);
xep_iq_send_and_free(iq);
}
static void
bonjour_bytestreams_connect_cb(gpointer data, gint source, const gchar *error_message)
{
PurpleXfer *xfer = data;
XepXfer *xf = xfer->data;
XepIq *iq;
xmlnode *q_node, *tmp_node;
BonjourData *bd;
gboolean ret = FALSE;
xf->proxy_connection = NULL;
if(source < 0) {
purple_debug_error("bonjour", "Error connecting via SOCKS5 to %s - %s\n",
xf->proxy_host, error_message ? error_message : "(null)");
tmp_node = xmlnode_get_next_twin(xf->streamhost);
ret = __xep_bytestreams_parse(xf->pb, xfer, tmp_node, xf->iq_id);
if (!ret) {
xep_ft_si_reject(xf->data, xf->iq_id, purple_xfer_get_remote_user(xfer), "404", "cancel");
/* Cancel the connection */
purple_xfer_cancel_local(xfer);
}
return;
}
purple_debug_info("bonjour", "Connected successfully via SOCKS5, starting transfer.\n");
bd = xf->data;
/* Here, start the file transfer.*/
/* Notify Initiator of Connection */
iq = xep_iq_new(bd, XEP_IQ_RESULT, xfer->who, bonjour_get_jid(bd->jabber_data->account), xf->iq_id);
q_node = xmlnode_new_child(iq->node, "query");
xmlnode_set_namespace(q_node, "http://jabber.org/protocol/bytestreams");
tmp_node = xmlnode_new_child(q_node, "streamhost-used");
xmlnode_set_attrib(tmp_node, "jid", xf->jid);
xep_iq_send_and_free(iq);
purple_xfer_start(xfer, source, NULL, -1);
}
static void
xep_ft_si_result(PurpleXfer *xfer, char *to)
{
xmlnode *si_node, *feature, *field, *value, *x;
XepIq *iq;
XepXfer *xf;
BonjourData *bd;
if(!to || !xfer)
return;
xf = xfer->data;
if(!xf)
return;
bd = xf->data;
purple_debug_info("bonjour", "xep file transfer stream initialization result.\n");
iq = xep_iq_new(bd, XEP_IQ_RESULT, to, bonjour_get_jid(bd->jabber_data->account), xf->iq_id);
if(iq == NULL)
return;
si_node = xmlnode_new_child(iq->node, "si");
xmlnode_set_namespace(si_node, "http://jabber.org/protocol/si");
/*xmlnode_set_attrib(si_node, "profile", "http://jabber.org/protocol/si/profile/file-transfer");*/
feature = xmlnode_new_child(si_node, "feature");
xmlnode_set_namespace(feature, "http://jabber.org/protocol/feature-neg");
x = xmlnode_new_child(feature, "x");
xmlnode_set_namespace(x, "jabber:x:data");
xmlnode_set_attrib(x, "type", "submit");
field = xmlnode_new_child(x, "field");
xmlnode_set_attrib(field, "var", "stream-method");
value = xmlnode_new_child(field, "value");
xmlnode_insert_data(value, "http://jabber.org/protocol/bytestreams", -1);
xep_iq_send_and_free(iq);
}
static void
xep_ft_si_reject(BonjourData *bd, const char *id, const char *to, const char *error_code, const char *error_type)
{
xmlnode *error_node;
XepIq *iq;
g_return_if_fail(error_code != NULL);
g_return_if_fail(error_type != NULL);
if(!to || !id) {
purple_debug_info("bonjour", "xep file transfer stream initialization error.\n");
return;
}
iq = xep_iq_new(bd, XEP_IQ_ERROR, to, bonjour_get_jid(bd->jabber_data->account), id);
if(iq == NULL)
return;
error_node = xmlnode_new_child(iq->node, "error");
xmlnode_set_attrib(error_node, "code", error_code);
xmlnode_set_attrib(error_node, "type", error_type);
/* TODO: Make this better */
if (purple_strequal(error_code, "403")) {
xmlnode *tmp_node = xmlnode_new_child(error_node, "forbidden");
xmlnode_set_namespace(tmp_node, "urn:ietf:params:xml:ns:xmpp-stanzas");
tmp_node = xmlnode_new_child(error_node, "text");
xmlnode_set_namespace(tmp_node, "urn:ietf:params:xml:ns:xmpp-stanzas");
xmlnode_insert_data(tmp_node, "Offer Declined", -1);
} else if (purple_strequal(error_code, "404")) {
xmlnode *tmp_node = xmlnode_new_child(error_node, "item-not-found");
xmlnode_set_namespace(tmp_node, "urn:ietf:params:xml:ns:xmpp-stanzas");
}
xep_iq_send_and_free(iq);
}
static void
xep_ft_si_offer(PurpleXfer *xfer, const gchar *to)
{
xmlnode *si_node, *feature, *field, *file, *x;
XepIq *iq;
XepXfer *xf = xfer->data;
BonjourData *bd = NULL;
char buf[32];
if(!xf)
return;
bd = xf->data;
if(!bd)
return;
purple_debug_info("bonjour", "xep file transfer stream initialization offer-id=%d.\n", next_id);
/* Assign stream id. */
g_free(xf->iq_id);
xf->iq_id = g_strdup_printf("%u", next_id++);
iq = xep_iq_new(xf->data, XEP_IQ_SET, to, bonjour_get_jid(bd->jabber_data->account), xf->iq_id);
if(iq == NULL)
return;
/*Construct Stream initialization offer message.*/
si_node = xmlnode_new_child(iq->node, "si");
xmlnode_set_namespace(si_node, "http://jabber.org/protocol/si");
xmlnode_set_attrib(si_node, "profile", "http://jabber.org/protocol/si/profile/file-transfer");
g_free(xf->sid);
xf->sid = g_strdup(xf->iq_id);
xmlnode_set_attrib(si_node, "id", xf->sid);
file = xmlnode_new_child(si_node, "file");
xmlnode_set_namespace(file, "http://jabber.org/protocol/si/profile/file-transfer");
xmlnode_set_attrib(file, "name", xfer->filename);
g_snprintf(buf, sizeof(buf), "%" G_GSIZE_FORMAT, xfer->size);
xmlnode_set_attrib(file, "size", buf);
feature = xmlnode_new_child(si_node, "feature");
xmlnode_set_namespace(feature, "http://jabber.org/protocol/feature-neg");
x = xmlnode_new_child(feature, "x");
xmlnode_set_namespace(x, "jabber:x:data");
xmlnode_set_attrib(x, "type", "form");
field = xmlnode_new_child(x, "field");
xmlnode_set_attrib(field, "var", "stream-method");
xmlnode_set_attrib(field, "type", "list-single");
if (xf->mode & XEP_BYTESTREAMS) {
xmlnode *option = xmlnode_new_child(field, "option");
xmlnode *value = xmlnode_new_child(option, "value");
xmlnode_insert_data(value, "http://jabber.org/protocol/bytestreams", -1);
}
if (xf->mode & XEP_IBB) {
xmlnode *option = xmlnode_new_child(field, "option");
xmlnode *value = xmlnode_new_child(option, "value");
xmlnode_insert_data(value, "http://jabber.org/protocol/ibb", -1);
}
xep_iq_send_and_free(iq);
}
gboolean _mdns_set_buddy_icon_data(BonjourDnsSd *data, gconstpointer avatar_data, gsize avatar_len) {
AvahiSessionImplData *idata = data->mdns_impl_data;
if (idata == NULL || idata->client == NULL)
return FALSE;
if (avatar_data != NULL) {
gboolean new_group = FALSE;
gchar *svc_name;
int ret;
AvahiPublishFlags flags = 0;
if (idata->buddy_icon_group == NULL) {
purple_debug_info("bonjour", "Setting new buddy icon.\n");
new_group = TRUE;
idata->buddy_icon_group = avahi_entry_group_new(idata->client,
_buddy_icon_group_cb, data);
} else {
purple_debug_info("bonjour", "Updating existing buddy icon.\n");
flags |= AVAHI_PUBLISH_UPDATE;
}
if (idata->buddy_icon_group == NULL) {
purple_debug_error("bonjour",
"Unable to initialize the buddy icon group (%s).\n",
avahi_strerror(avahi_client_errno(idata->client)));
return FALSE;
}
svc_name = g_strdup_printf("%s." LINK_LOCAL_RECORD_NAME "local",
bonjour_get_jid(data->account));
ret = avahi_entry_group_add_record(idata->buddy_icon_group, AVAHI_IF_UNSPEC,
AVAHI_PROTO_UNSPEC, flags, svc_name,
AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_NULL, 120, avatar_data, avatar_len);
g_free(svc_name);
if (ret < 0) {
purple_debug_error("bonjour",
"Failed to register buddy icon. Error: %s\n", avahi_strerror(ret));
if (new_group) {
avahi_entry_group_free(idata->buddy_icon_group);
idata->buddy_icon_group = NULL;
}
return FALSE;
}
if (new_group && (ret = avahi_entry_group_commit(idata->buddy_icon_group)) < 0) {
purple_debug_error("bonjour",
"Failed to commit buddy icon group. Error: %s\n", avahi_strerror(ret));
if (new_group) {
avahi_entry_group_free(idata->buddy_icon_group);
idata->buddy_icon_group = NULL;
}
return FALSE;
}
} else if (idata->buddy_icon_group != NULL) {
purple_debug_info("bonjour", "Removing existing buddy icon.\n");
avahi_entry_group_free(idata->buddy_icon_group);
idata->buddy_icon_group = NULL;
}
return TRUE;
}
gboolean _mdns_publish(BonjourDnsSd *data, PublishType type, GSList *records) {
int publish_result = 0;
AvahiSessionImplData *idata = data->mdns_impl_data;
AvahiStringList *lst = NULL;
g_return_val_if_fail(idata != NULL, FALSE);
if (!idata->group) {
idata->group = avahi_entry_group_new(idata->client,
_entry_group_cb, idata);
if (!idata->group) {
purple_debug_error("bonjour",
"Unable to initialize the data for the mDNS (%s).\n",
avahi_strerror(avahi_client_errno(idata->client)));
return FALSE;
}
}
while (records) {
PurpleKeyValuePair *kvp = records->data;
lst = avahi_string_list_add_pair(lst, kvp->key, kvp->value);
records = records->next;
}
/* Publish the service */
switch (type) {
case PUBLISH_START:
publish_result = avahi_entry_group_add_service_strlst(
idata->group, AVAHI_IF_UNSPEC,
AVAHI_PROTO_UNSPEC, 0,
bonjour_get_jid(data->account),
LINK_LOCAL_RECORD_NAME, NULL, NULL, data->port_p2pj, lst);
break;
case PUBLISH_UPDATE:
publish_result = avahi_entry_group_update_service_txt_strlst(
idata->group, AVAHI_IF_UNSPEC,
AVAHI_PROTO_UNSPEC, 0,
bonjour_get_jid(data->account),
LINK_LOCAL_RECORD_NAME, NULL, lst);
break;
}
/* Free the memory used by temp data */
avahi_string_list_free(lst);
if (publish_result < 0) {
purple_debug_error("bonjour",
"Failed to add the " LINK_LOCAL_RECORD_NAME " service. Error: %s\n",
avahi_strerror(publish_result));
return FALSE;
}
if (type == PUBLISH_START
&& (publish_result = avahi_entry_group_commit(idata->group)) < 0) {
purple_debug_error("bonjour",
"Failed to commit " LINK_LOCAL_RECORD_NAME " service. Error: %s\n",
avahi_strerror(publish_result));
return FALSE;
}
return TRUE;
}
static void
_browser_callback(AvahiServiceBrowser *b, AvahiIfIndex interface,
AvahiProtocol protocol, AvahiBrowserEvent event,
const char *name, const char *type, const char *domain,
AvahiLookupResultFlags flags, void *userdata) {
PurpleAccount *account = userdata;
PurpleBuddy *pb = NULL;
switch (event) {
case AVAHI_BROWSER_FAILURE:
purple_debug_error("bonjour", "_browser_callback - Failure: %s\n",
avahi_strerror(avahi_client_errno(avahi_service_browser_get_client(b))));
/* TODO: This is an error that should be handled. */
break;
case AVAHI_BROWSER_NEW:
/* A new peer has joined the network and uses iChat bonjour */
purple_debug_info("bonjour", "_browser_callback - new service\n");
/* Make sure it isn't us */
if (purple_utf8_strcasecmp(name, bonjour_get_jid(account)) != 0) {
if (!avahi_service_resolver_new(avahi_service_browser_get_client(b),
interface, protocol, name, type, domain, protocol,
0, _resolver_callback, account)) {
purple_debug_warning("bonjour", "_browser_callback -- Error initiating resolver: %s\n",
avahi_strerror(avahi_client_errno(avahi_service_browser_get_client(b))));
}
}
break;
case AVAHI_BROWSER_REMOVE:
purple_debug_info("bonjour", "_browser_callback - Remove service\n");
pb = purple_find_buddy(account, name);
if (pb != NULL) {
BonjourBuddy *bb = purple_buddy_get_protocol_data(pb);
AvahiBuddyImplData *b_impl;
GSList *l;
AvahiSvcResolverData *rd_search;
g_return_if_fail(bb != NULL);
b_impl = bb->mdns_impl_data;
/* There may be multiple presences, we should only get rid of this one */
rd_search = g_new0(AvahiSvcResolverData, 1);
rd_search->interface = interface;
rd_search->protocol = protocol;
rd_search->name = (gchar *) name;
rd_search->type = (gchar *) type;
rd_search->domain = (gchar *) domain;
l = g_slist_find_custom(b_impl->resolvers, rd_search, _find_resolver_data);
g_free(rd_search);
if (l != NULL) {
AvahiSvcResolverData *rd = l->data;
b_impl->resolvers = g_slist_remove(b_impl->resolvers, rd);
/* This IP is no longer available */
if (rd->ip != NULL) {
bb->ips = g_slist_remove(bb->ips, rd->ip);
g_free((gchar *) rd->ip);
}
_cleanup_resolver_data(rd);
/* If this was the last resolver, remove the buddy */
if (b_impl->resolvers == NULL)
bonjour_buddy_signed_off(pb);
}
}
break;
case AVAHI_BROWSER_ALL_FOR_NOW:
case AVAHI_BROWSER_CACHE_EXHAUSTED:
break;
default:
purple_debug_info("bonjour", "Unrecognized Service browser event: %d.\n", event);
}
}
