HGKeeper

* purple - Jabber Service Discovery

* Purple is the legal property of its developers, whose names are too numerous

* to list here. Please refer to the COPYRIGHT file distributed with this

* source distribution.

* This program is free software; you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation; either version 2 of the License, or

* (at your option) any later version.

* This program 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 General Public License for more details.

* You should have received a copy of the GNU General Public License

* along with this program; if not, write to the Free Software

* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA

#include <purple.h>

#include "adhoccommands.h"

#include "buddy.h"

#include "disco.h"

#include "iq.h"

#include "jabber.h"

#include "jingle/jingle.h"

#include "pep.h"

#include "presence.h"

#include "roster.h"

#include "useravatar.h"

struct _jabber_disco_info_cb_data {

gpointer data;

JabberDiscoInfoCallback *callback;

};

struct _jabber_disco_items_cb_data {

gpointer data;

JabberDiscoItemsCallback *callback;

};

#define SUPPORT_FEATURE(x) { \

feature = purple_xmlnode_new_child(query, "feature"); \

purple_xmlnode_set_attrib(feature, "var", x); \

}

static void

jabber_disco_bytestream_server_cb(JabberStream *js, const char *from,

JabberIqType type, const char *id,

PurpleXmlNode *packet, gpointer data)

{

JabberBytestreamsStreamhost *sh = data;

PurpleXmlNode *query = purple_xmlnode_get_child_with_namespace(packet, "query",

NS_BYTESTREAMS);

if (from && purple_strequal(from, sh->jid) && query != NULL) {

PurpleXmlNode *sh_node = purple_xmlnode_get_child(query, "streamhost");

if (sh_node) {

const char *jid = purple_xmlnode_get_attrib(sh_node, "jid");

const char *port = purple_xmlnode_get_attrib(sh_node, "port");

if (jid == NULL || !purple_strequal(jid, from))

purple_debug_error("jabber", "Invalid jid(%s) for bytestream.\n",

jid ? jid : "(null)");

sh->host = g_strdup(purple_xmlnode_get_attrib(sh_node, "host"));

sh->zeroconf = g_strdup(purple_xmlnode_get_attrib(sh_node, "zeroconf"));

if (port != NULL)

sh->port = atoi(port);

}

purple_debug_info("jabber", "Discovered bytestream proxy server: "

"jid='%s' host='%s' port='%d' zeroconf='%s'\n",

from ? from : "", sh->host ? sh->host : "",

sh->port, sh->zeroconf ? sh->zeroconf : "");

/* TODO: When we support zeroconf proxies, fix this to handle them */

if (!(sh->jid && sh->host && sh->port > 0)) {

js->bs_proxies = g_list_remove(js->bs_proxies, sh);

jabber_bytestreams_streamhost_free(sh);

}

void jabber_disco_info_parse(JabberStream *js, const char *from,

JabberIqType type, const char *id,

PurpleXmlNode *in_query)

{

if(type == JABBER_IQ_GET) {

PurpleXmlNode *query, *identity, *feature;

JabberIq *iq;

const char *node = purple_xmlnode_get_attrib(in_query, "node");

char *node_uri = NULL;

/* create custom caps node URI */

node_uri = g_strconcat(CAPS0115_NODE, "#", jabber_caps_get_own_hash(js), NULL);

iq = jabber_iq_new_query(js, JABBER_IQ_RESULT, NS_DISCO_INFO);

jabber_iq_set_id(iq, id);

if (from)

purple_xmlnode_set_attrib(iq->node, "to", from);

query = purple_xmlnode_get_child(iq->node, "query");

if(node)

purple_xmlnode_set_attrib(query, "node", node);

if(!node || purple_strequal(node, node_uri)) {

GList *features, *identities;

for(identities = jabber_identities; identities; identities = identities->next) {

JabberIdentity *ident = (JabberIdentity*)identities->data;

identity = purple_xmlnode_new_child(query, "identity");

purple_xmlnode_set_attrib(identity, "category", ident->category);

purple_xmlnode_set_attrib(identity, "type", ident->type);

if (ident->lang)

purple_xmlnode_set_attrib(identity, "xml:lang", ident->lang);

if (ident->name)

purple_xmlnode_set_attrib(identity, "name", ident->name);

}

for(features = jabber_features; features; features = features->next) {

JabberFeature *feat = (JabberFeature*)features->data;

if (!feat->is_enabled || feat->is_enabled(js, feat->namespace)) {

feature = purple_xmlnode_new_child(query, "feature");

purple_xmlnode_set_attrib(feature, "var", feat->namespace);

}

} else {

PurpleXmlNode *error, *inf;

/* XXX: gross hack, implement jabber_iq_set_type or something */

purple_xmlnode_set_attrib(iq->node, "type", "error");

iq->type = JABBER_IQ_ERROR;

error = purple_xmlnode_new_child(query, "error");

purple_xmlnode_set_attrib(error, "code", "404");

purple_xmlnode_set_attrib(error, "type", "cancel");

inf = purple_xmlnode_new_child(error, "item-not-found");

purple_xmlnode_set_namespace(inf, NS_XMPP_STANZAS);

}

g_free(node_uri);

jabber_iq_send(iq);

} else if (type == JABBER_IQ_SET) {

/* wtf? seriously. wtf‽ */

JabberIq *iq = jabber_iq_new(js, JABBER_IQ_ERROR);

PurpleXmlNode *error, *bad_request;

/* Free the <query/> */

purple_xmlnode_free(purple_xmlnode_get_child(iq->node, "query"));

/* Add an error */

error = purple_xmlnode_new_child(iq->node, "error");

purple_xmlnode_set_attrib(error, "type", "modify");

bad_request = purple_xmlnode_new_child(error, "bad-request");

purple_xmlnode_set_namespace(bad_request, NS_XMPP_STANZAS);

jabber_iq_set_id(iq, id);

if (from)

purple_xmlnode_set_attrib(iq->node, "to", from);

jabber_iq_send(iq);

}

static void jabber_disco_info_cb(JabberStream *js, const char *from,

JabberIqType type, const char *id,

PurpleXmlNode *packet, gpointer data)

{

struct _jabber_disco_info_cb_data *jdicd = data;

PurpleXmlNode *query;

query = purple_xmlnode_get_child_with_namespace(packet, "query", NS_DISCO_INFO);

if (type == JABBER_IQ_RESULT && query) {

PurpleXmlNode *child;

JabberID *jid;

JabberBuddy *jb;

JabberBuddyResource *jbr = NULL;

JabberCapabilities capabilities = JABBER_CAP_NONE;

if((jid = jabber_id_new(from))) {

if(jid->resource && (jb = jabber_buddy_find(js, from, TRUE)))

jbr = jabber_buddy_find_resource(jb, jid->resource);

jabber_id_free(jid);

}

if(jbr)

capabilities = jbr->capabilities;

for(child = query->child; child; child = child->next) {

if(child->type != PURPLE_XMLNODE_TYPE_TAG)

continue;

if(purple_strequal(child->name, "identity")) {

const char *category = purple_xmlnode_get_attrib(child, "category");

const char *type = purple_xmlnode_get_attrib(child, "type");

if(!category || !type)

continue;

if(purple_strequal(category, "conference") && purple_strequal(type, "text")) {

/* we found a groupchat or MUC server, add it to the list */

/* XXX: actually check for protocol/muc or gc-1.0 support */

js->chat_servers = g_list_prepend(js->chat_servers, g_strdup(from));

} else if(purple_strequal(category, "directory") && purple_strequal(type, "user")) {

/* we found a JUD */

js->user_directories = g_list_prepend(js->user_directories, g_strdup(from));

} else if(purple_strequal(category, "proxy") && purple_strequal(type, "bytestreams")) {

/* This is a bytestream proxy */

JabberIq *iq;

JabberBytestreamsStreamhost *sh;

purple_debug_info("jabber", "Found bytestream proxy server: %s\n", from);

sh = g_new0(JabberBytestreamsStreamhost, 1);

sh->jid = g_strdup(from);

js->bs_proxies = g_list_prepend(js->bs_proxies, sh);

iq = jabber_iq_new_query(js, JABBER_IQ_GET,

NS_BYTESTREAMS);

purple_xmlnode_set_attrib(iq->node, "to", sh->jid);

jabber_iq_set_callback(iq, jabber_disco_bytestream_server_cb, sh);

jabber_iq_send(iq);

}

} else if(purple_strequal(child->name, "feature")) {

const char *var = purple_xmlnode_get_attrib(child, "var");

if(!var)

continue;

if(purple_strequal(var, "http://jabber.org/protocol/si"))

capabilities |= JABBER_CAP_SI;

else if(purple_strequal(var, "http://jabber.org/protocol/si/profile/file-transfer"))

capabilities |= JABBER_CAP_SI_FILE_XFER;

else if(purple_strequal(var, NS_BYTESTREAMS))

capabilities |= JABBER_CAP_BYTESTREAMS;

else if(purple_strequal(var, "jabber:iq:search"))

capabilities |= JABBER_CAP_IQ_SEARCH;

else if(purple_strequal(var, "jabber:iq:register"))

capabilities |= JABBER_CAP_IQ_REGISTER;

else if(purple_strequal(var, NS_PING))

capabilities |= JABBER_CAP_PING;

else if(purple_strequal(var, NS_DISCO_ITEMS))

capabilities |= JABBER_CAP_ITEMS;

else if(purple_strequal(var, "http://jabber.org/protocol/commands")) {

capabilities |= JABBER_CAP_ADHOC;

}

else if(purple_strequal(var, NS_IBB)) {

purple_debug_info("jabber", "remote supports IBB\n");

capabilities |= JABBER_CAP_IBB;

}

js->chat_servers = g_list_reverse(js->chat_servers);

capabilities |= JABBER_CAP_RETRIEVED;

if(jbr)

jbr->capabilities = capabilities;

if (jdicd && jdicd->callback)

jdicd->callback(js, from, capabilities, jdicd->data);

} else { /* type == JABBER_IQ_ERROR or query == NULL */

JabberID *jid;

JabberBuddy *jb;

JabberBuddyResource *jbr = NULL;

JabberCapabilities capabilities = JABBER_CAP_NONE;

if((jid = jabber_id_new(from))) {

if(jid->resource && (jb = jabber_buddy_find(js, from, TRUE)))

jbr = jabber_buddy_find_resource(jb, jid->resource);

jabber_id_free(jid);

}

if(jbr)

capabilities = jbr->capabilities;

if (jdicd && jdicd->callback)

jdicd->callback(js, from, capabilities, jdicd->data);

}

g_free(jdicd);

}

void jabber_disco_items_parse(JabberStream *js, const char *from,

JabberIqType type, const char *id,

PurpleXmlNode *query)

{

if(type == JABBER_IQ_GET) {

JabberIq *iq = jabber_iq_new_query(js, JABBER_IQ_RESULT,

NS_DISCO_ITEMS);

/* preserve node */

PurpleXmlNode *iq_query = purple_xmlnode_get_child(iq->node, "query");

const char *node = purple_xmlnode_get_attrib(query, "node");

if(node)

purple_xmlnode_set_attrib(iq_query,"node",node);

jabber_iq_set_id(iq, id);

if (from)

purple_xmlnode_set_attrib(iq->node, "to", from);

jabber_iq_send(iq);

}

static void

jabber_disco_finish_server_info_result_cb(JabberStream *js)

{

const char *ft_proxies;

* This *should* happen only if the server supports vcard-temp, but there

* are apparently some servers that don't advertise it even though they

* support it.

jabber_vcard_fetch_mine(js);

if (js->pep)

jabber_avatar_fetch_mine(js);

/* Yes, please! */

jabber_roster_request(js);

if (js->server_caps & JABBER_CAP_ADHOC) {

/* The server supports ad-hoc commands, so let's request the list */

jabber_adhoc_server_get_list(js);

}

/* If the server supports blocking, request the block list */

if (js->server_caps & JABBER_CAP_BLOCKING) {

jabber_request_block_list(js);

}

/* If the server supports carbons, enable them! */

if(js->server_caps & JABBER_CAP_MESSAGE_CARBONS) {

JabberIq *iq = jabber_iq_new(js, JABBER_IQ_SET);

PurpleXmlNode *enable = purple_xmlnode_new_child(iq->node, "enable");

purple_xmlnode_set_namespace(enable, NS_MESSAGE_CARBONS);

jabber_iq_send(iq);

}

/* If there are manually specified bytestream proxies, query them */

ft_proxies = purple_account_get_string(purple_connection_get_account(js->gc), "ft_proxies", NULL);

if (ft_proxies) {

JabberIq *iq;

JabberBytestreamsStreamhost *sh;

int i;

char *tmp;

gchar **ft_proxy_list = g_strsplit(ft_proxies, ",", 0);

for(i = 0; ft_proxy_list[i]; i++) {

g_strstrip(ft_proxy_list[i]);

if(!(*ft_proxy_list[i]))

continue;

/* We used to allow specifying a port directly here; get rid of it */

if((tmp = strchr(ft_proxy_list[i], ':')))

*tmp = '\0';

sh = g_new0(JabberBytestreamsStreamhost, 1);

sh->jid = g_strdup(ft_proxy_list[i]);

js->bs_proxies = g_list_prepend(js->bs_proxies, sh);

iq = jabber_iq_new_query(js, JABBER_IQ_GET, NS_BYTESTREAMS);

purple_xmlnode_set_attrib(iq->node, "to", sh->jid);

jabber_iq_set_callback(iq, jabber_disco_bytestream_server_cb, sh);

jabber_iq_send(iq);

}

g_strfreev(ft_proxy_list);

}

static void

jabber_disco_stun_srv_resolve_cb(GObject *sender, GAsyncResult *result, gpointer data) {

GError *error = NULL;

GList *services = NULL;

JabberStream *js = (JabberStream *) data;

gint results = 0;

services = g_resolver_lookup_service_finish(G_RESOLVER(sender),

result, &error);

if(error != NULL) {

purple_debug_info("jabber", "Failed to look up a STUN record : %s\n", error->message);

g_error_free(error);

return;

}

results = g_list_length(services);

purple_debug_info("jabber", "got %d SRV responses for STUN.\n", results);

if (results > 0) {

GSrvTarget *target = (GSrvTarget *)services->data;

const gchar *hostname = g_srv_target_get_hostname(target);

js->stun_ip = g_strdup(hostname);

js->stun_port = g_srv_target_get_port(target);

purple_debug_info("jabber", "set stun address to %s:%d\n",

hostname, js->stun_port);

}

g_resolver_free_targets(services);

}

static void

jabber_disco_server_info_result_cb(JabberStream *js, const char *from,

JabberIqType type, const char *id,

PurpleXmlNode *packet, gpointer data)

{

PurpleXmlNode *query, *child;

if (!from || !purple_strequal(from, js->user->domain)) {

jabber_disco_finish_server_info_result_cb(js);

return;

}

if (type == JABBER_IQ_ERROR) {

/* A common way to get here is for the server not to support xmlns http://jabber.org/protocol/disco#info */

jabber_disco_finish_server_info_result_cb(js);

return;

}

query = purple_xmlnode_get_child(packet, "query");

if (!query) {

jabber_disco_finish_server_info_result_cb(js);

return;

}

for (child = purple_xmlnode_get_child(query, "identity"); child;

child = purple_xmlnode_get_next_twin(child)) {

const char *category, *type, *name, *stun_ip;

category = purple_xmlnode_get_attrib(child, "category");

type = purple_xmlnode_get_attrib(child, "type");

if(purple_strequal(category, "pubsub") && purple_strequal(type, "pep")) {

PurpleConnection *gc = js->gc;

js->pep = TRUE;

purple_connection_set_flags(gc,

purple_connection_get_flags(gc)

| PURPLE_CONNECTION_FLAG_SUPPORT_MOODS

| PURPLE_CONNECTION_FLAG_SUPPORT_MOOD_MESSAGES);

}

if (!purple_strequal(category, "server"))

continue;

if (!purple_strequal(type, "im"))

continue;

name = purple_xmlnode_get_attrib(child, "name");

if (!name)

continue;

g_free(js->server_name);

js->server_name = g_strdup(name);

stun_ip = purple_network_get_stun_ip();

if (!stun_ip || !*stun_ip) {

GResolver *resolver = g_resolver_get_default();

g_resolver_lookup_service_async(resolver,

"stun",

"udp",

js->user->domain,

NULL,

jabber_disco_stun_srv_resolve_cb,

js);

g_object_unref(resolver);

/* TODO: add TURN support later... */

}

for (child = purple_xmlnode_get_child(query, "feature"); child;

child = purple_xmlnode_get_next_twin(child)) {

const char *var;

var = purple_xmlnode_get_attrib(child, "var");

if (!var)

continue;

if (purple_strequal("http://jabber.org/protocol/commands", var)) {

js->server_caps |= JABBER_CAP_ADHOC;

} else if (purple_strequal(NS_SIMPLE_BLOCKING, var)) {

js->server_caps |= JABBER_CAP_BLOCKING;

} else if (purple_strequal(NS_MESSAGE_CARBONS, var)) {

js->server_caps |= JABBER_CAP_MESSAGE_CARBONS;

}

jabber_disco_finish_server_info_result_cb(js);

}

static void

jabber_disco_server_items_result_cb(JabberStream *js, const char *from,

JabberIqType type, const char *id,

PurpleXmlNode *packet, gpointer data)

{

PurpleXmlNode *query, *child;

if (!from || !purple_strequal(from, js->user->domain))

return;

if (type == JABBER_IQ_ERROR)

return;

g_list_free_full(js->chat_servers, g_free);

js->chat_servers = NULL;

query = purple_xmlnode_get_child(packet, "query");

for(child = purple_xmlnode_get_child(query, "item"); child;

child = purple_xmlnode_get_next_twin(child)) {

JabberIq *iq;

const char *jid;

if(!(jid = purple_xmlnode_get_attrib(child, "jid")))

continue;

/* we don't actually care about the specific nodes,

* so we won't query them */

if(purple_xmlnode_get_attrib(child, "node") != NULL)

continue;

iq = jabber_iq_new_query(js, JABBER_IQ_GET, NS_DISCO_INFO);

purple_xmlnode_set_attrib(iq->node, "to", jid);

jabber_iq_set_callback(iq, jabber_disco_info_cb, NULL);

jabber_iq_send(iq);

}

void jabber_disco_items_server(JabberStream *js)

{

JabberIq *iq = jabber_iq_new_query(js, JABBER_IQ_GET, NS_DISCO_ITEMS);

purple_xmlnode_set_attrib(iq->node, "to", js->user->domain);

jabber_iq_set_callback(iq, jabber_disco_server_items_result_cb, NULL);

jabber_iq_send(iq);

iq = jabber_iq_new_query(js, JABBER_IQ_GET, NS_DISCO_INFO);

purple_xmlnode_set_attrib(iq->node, "to", js->user->domain);

jabber_iq_set_callback(iq, jabber_disco_server_info_result_cb, NULL);

jabber_iq_send(iq);

}

void jabber_disco_info_do(JabberStream *js, const char *who, JabberDiscoInfoCallback *callback, gpointer data)

{

JabberID *jid;

JabberBuddy *jb;

JabberBuddyResource *jbr = NULL;

struct _jabber_disco_info_cb_data *jdicd;

JabberIq *iq;

if((jid = jabber_id_new(who))) {

if(jid->resource && (jb = jabber_buddy_find(js, who, TRUE)))

jbr = jabber_buddy_find_resource(jb, jid->resource);

jabber_id_free(jid);

}

if(jbr && jbr->capabilities & JABBER_CAP_RETRIEVED) {

callback(js, who, jbr->capabilities, data);

return;

}

jdicd = g_new0(struct _jabber_disco_info_cb_data, 1);

jdicd->data = data;

jdicd->callback = callback;

iq = jabber_iq_new_query(js, JABBER_IQ_GET, NS_DISCO_INFO);

purple_xmlnode_set_attrib(iq->node, "to", who);

jabber_iq_set_callback(iq, jabber_disco_info_cb, jdicd);

jabber_iq_send(iq);

}

pidgin/pidgin