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profanity/src/xmpp/roster.c

650 lines
18 KiB
C

/*
* roster.c
*
* Copyright (C) 2012, 2013 James Booth <boothj5@gmail.com>
*
* This file is part of Profanity.
*
* Profanity 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 3 of the License, or
* (at your option) any later version.
*
* Profanity 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 Profanity. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <assert.h>
#include <string.h>
#include <glib.h>
#include <strophe.h>
#include "log.h"
#include "profanity.h"
#include "tools/autocomplete.h"
#include "xmpp/connection.h"
#include "xmpp/roster.h"
#include "xmpp/stanza.h"
#include "xmpp/xmpp.h"
#define HANDLE(type, func) xmpp_handler_add(conn, func, XMPP_NS_ROSTER, \
STANZA_NAME_IQ, type, ctx)
// nicknames
static Autocomplete name_ac;
// barejids
static Autocomplete barejid_ac;
// fulljids
static Autocomplete fulljid_ac;
// groups
static Autocomplete groups_ac;
// contacts, indexed on barejid
static GHashTable *contacts;
// nickname to jid map
static GHashTable *name_to_barejid;
// event handlers
static int _roster_handle_push(xmpp_conn_t * const conn,
xmpp_stanza_t * const stanza, void * const userdata);
static int _roster_handle_result(xmpp_conn_t * const conn,
xmpp_stanza_t * const stanza, void * const userdata);
// helper functions
static void _add_name_and_barejid(const char * const name,
const char * const barejid);
static void _replace_name(const char * const current_name,
const char * const new_name, const char * const barejid);
GSList * _get_groups_from_item(xmpp_stanza_t *item);
static gboolean _key_equals(void *key1, void *key2);
static gboolean _datetimes_equal(GDateTime *dt1, GDateTime *dt2);
static gint _compare_contacts(PContact a, PContact b);
void
roster_add_handlers(void)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
HANDLE(STANZA_TYPE_SET, _roster_handle_push);
HANDLE(STANZA_TYPE_RESULT, _roster_handle_result);
}
void
roster_request(void)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
xmpp_stanza_t *iq = stanza_create_roster_iq(ctx);
xmpp_send(conn, iq);
xmpp_stanza_release(iq);
}
void
roster_init(void)
{
name_ac = autocomplete_new();
barejid_ac = autocomplete_new();
fulljid_ac = autocomplete_new();
groups_ac = autocomplete_new();
contacts = g_hash_table_new_full(g_str_hash, (GEqualFunc)_key_equals, g_free,
(GDestroyNotify)p_contact_free);
name_to_barejid = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
g_free);
}
void
roster_clear(void)
{
autocomplete_clear(name_ac);
autocomplete_clear(barejid_ac);
autocomplete_clear(fulljid_ac);
autocomplete_clear(groups_ac);
g_hash_table_destroy(contacts);
contacts = g_hash_table_new_full(g_str_hash, (GEqualFunc)_key_equals, g_free,
(GDestroyNotify)p_contact_free);
g_hash_table_destroy(name_to_barejid);
name_to_barejid = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
g_free);
}
void
roster_free()
{
autocomplete_free(name_ac);
autocomplete_free(barejid_ac);
autocomplete_free(fulljid_ac);
autocomplete_free(groups_ac);
}
void
roster_reset_search_attempts(void)
{
autocomplete_reset(name_ac);
autocomplete_reset(barejid_ac);
autocomplete_reset(fulljid_ac);
autocomplete_reset(groups_ac);
}
void
roster_add_new(const char * const barejid, const char * const name)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
xmpp_stanza_t *iq = stanza_create_roster_set(ctx, barejid, name, NULL);
xmpp_send(conn, iq);
xmpp_stanza_release(iq);
}
void
roster_remove(const char * const barejid)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
xmpp_stanza_t *iq = stanza_create_roster_remove_set(ctx, barejid);
xmpp_send(conn, iq);
xmpp_stanza_release(iq);
}
gboolean
roster_add(const char * const barejid, const char * const name, GSList *groups,
const char * const subscription, gboolean pending_out, gboolean from_initial)
{
gboolean added = FALSE;
PContact contact = g_hash_table_lookup(contacts, barejid);
if (contact == NULL) {
contact = p_contact_new(barejid, name, groups, subscription, NULL,
pending_out);
// add groups
while (groups != NULL) {
autocomplete_add(groups_ac, strdup(groups->data));
groups = g_slist_next(groups);
}
g_hash_table_insert(contacts, strdup(barejid), contact);
autocomplete_add(barejid_ac, strdup(barejid));
_add_name_and_barejid(name, barejid);
if (!from_initial) {
prof_handle_roster_add(barejid, name);
}
added = TRUE;
}
return added;
}
void
roster_update(const char * const barejid, const char * const name,
GSList *groups, const char * const subscription, gboolean pending_out)
{
PContact contact = g_hash_table_lookup(contacts, barejid);
if (contact == NULL) {
roster_add(barejid, name, groups, subscription, pending_out, FALSE);
} else {
p_contact_set_subscription(contact, subscription);
p_contact_set_pending_out(contact, pending_out);
const char * const new_name = name;
const char * current_name = NULL;
if (p_contact_name(contact) != NULL) {
current_name = strdup(p_contact_name(contact));
}
p_contact_set_name(contact, new_name);
p_contact_set_groups(contact, groups);
_replace_name(current_name, new_name, barejid);
// add groups
while (groups != NULL) {
autocomplete_add(groups_ac, strdup(groups->data));
groups = g_slist_next(groups);
}
}
}
gboolean
roster_update_presence(const char * const barejid, Resource *resource,
GDateTime *last_activity)
{
assert(barejid != NULL);
assert(resource != NULL);
PContact contact = g_hash_table_lookup(contacts, barejid);
if (contact == NULL) {
return FALSE;
}
if (!_datetimes_equal(p_contact_last_activity(contact), last_activity)) {
p_contact_set_last_activity(contact, last_activity);
}
p_contact_set_presence(contact, resource);
Jid *jid = jid_create_from_bare_and_resource(barejid, resource->name);
autocomplete_add(fulljid_ac, strdup(jid->fulljid));
jid_destroy(jid);
return TRUE;
}
gboolean
roster_contact_offline(const char * const barejid,
const char * const resource, const char * const status)
{
PContact contact = g_hash_table_lookup(contacts, barejid);
if (contact == NULL) {
return FALSE;
}
if (resource == NULL) {
return TRUE;
} else {
gboolean result = p_contact_remove_resource(contact, resource);
if (result == TRUE) {
Jid *jid = jid_create_from_bare_and_resource(barejid, resource);
autocomplete_remove(fulljid_ac, jid->fulljid);
jid_destroy(jid);
}
return result;
}
}
void
roster_change_name(const char * const barejid, const char * const new_name)
{
PContact contact = g_hash_table_lookup(contacts, barejid);
const char * current_name = NULL;
if (p_contact_name(contact) != NULL) {
current_name = strdup(p_contact_name(contact));
}
if (contact != NULL) {
p_contact_set_name(contact, new_name);
_replace_name(current_name, new_name, barejid);
GSList *groups = p_contact_groups(contact);
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
xmpp_stanza_t *iq = stanza_create_roster_set(ctx, barejid, new_name,
groups);
xmpp_send(conn, iq);
xmpp_stanza_release(iq);
}
}
void
roster_add_to_group(const char * const group, const char * const barejid)
{
PContact contact = g_hash_table_lookup(contacts, barejid);
if (contact != NULL) {
if (p_contact_in_group(contact, group)) {
return;
}
GSList *groups = p_contact_groups(contact);
GSList *new_groups = NULL;
while (groups != NULL) {
new_groups = g_slist_append(new_groups, strdup(groups->data));
groups = g_slist_next(groups);
}
new_groups = g_slist_append(new_groups, strdup(group));
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
xmpp_stanza_t *iq = stanza_create_roster_set(ctx, barejid,
p_contact_name(contact), new_groups);
xmpp_send(conn, iq);
xmpp_stanza_release(iq);
}
}
void
roster_remove_from_group(const char * const group, const char * const barejid)
{
PContact contact = g_hash_table_lookup(contacts, barejid);
if (contact != NULL) {
if (!p_contact_in_group(contact, group)) {
return;
}
GSList *groups = p_contact_groups(contact);
GSList *new_groups = NULL;
while (groups != NULL) {
if (strcmp(groups->data, group) != 0) {
new_groups = g_slist_append(new_groups, strdup(groups->data));
}
groups = g_slist_next(groups);
}
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
xmpp_stanza_t *iq = stanza_create_roster_set(ctx, barejid,
p_contact_name(contact), new_groups);
xmpp_send(conn, iq);
xmpp_stanza_release(iq);
}
}
gboolean
roster_has_pending_subscriptions(void)
{
GHashTableIter iter;
gpointer key;
gpointer value;
g_hash_table_iter_init(&iter, contacts);
while (g_hash_table_iter_next(&iter, &key, &value)) {
PContact contact = (PContact) value;
if (p_contact_pending_out(contact)) {
return TRUE;
}
}
return FALSE;
}
GSList *
roster_get_contacts(void)
{
GSList *result = NULL;
GHashTableIter iter;
gpointer key;
gpointer value;
g_hash_table_iter_init(&iter, contacts);
while (g_hash_table_iter_next(&iter, &key, &value)) {
result = g_slist_insert_sorted(result, value, (GCompareFunc)_compare_contacts);
}
// resturn all contact structs
return result;
}
GSList *
roster_get_group(const char * const group)
{
GSList *result = NULL;
GHashTableIter iter;
gpointer key;
gpointer value;
g_hash_table_iter_init(&iter, contacts);
while (g_hash_table_iter_next(&iter, &key, &value)) {
GSList *groups = p_contact_groups(value);
while (groups != NULL) {
if (strcmp(groups->data, group) == 0) {
result = g_slist_insert_sorted(result, value, (GCompareFunc)_compare_contacts);
break;
}
groups = g_slist_next(groups);
}
}
// resturn all contact structs
return result;
}
char *
roster_find_contact(char *search_str)
{
return autocomplete_complete(name_ac, search_str);
}
char *
roster_find_jid(char *search_str)
{
return autocomplete_complete(barejid_ac, search_str);
}
char *
roster_find_resource(char *search_str)
{
return autocomplete_complete(fulljid_ac, search_str);
}
char *
roster_barejid_from_name(const char * const name)
{
return g_hash_table_lookup(name_to_barejid, name);
}
PContact
roster_get_contact(const char const *barejid)
{
return g_hash_table_lookup(contacts, barejid);
}
static int
_roster_handle_push(xmpp_conn_t * const conn, xmpp_stanza_t * const stanza,
void * const userdata)
{
xmpp_stanza_t *query =
xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_QUERY);
xmpp_stanza_t *item =
xmpp_stanza_get_child_by_name(query, STANZA_NAME_ITEM);
if (item == NULL) {
return 1;
}
// if from attribute exists and it is not current users barejid, ignore push
Jid *my_jid = jid_create(jabber_get_fulljid());
const char *from = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM);
if ((from != NULL) && (strcmp(from, my_jid->barejid) != 0)) {
jid_destroy(my_jid);
return 1;
}
jid_destroy(my_jid);
const char *barejid = xmpp_stanza_get_attribute(item, STANZA_ATTR_JID);
const char *name = xmpp_stanza_get_attribute(item, STANZA_ATTR_NAME);
const char *sub = xmpp_stanza_get_attribute(item, STANZA_ATTR_SUBSCRIPTION);
const char *ask = xmpp_stanza_get_attribute(item, STANZA_ATTR_ASK);
// remove from roster
if (g_strcmp0(sub, "remove") == 0) {
// remove barejid and name
if (name == NULL) {
name = barejid;
}
autocomplete_remove(barejid_ac, barejid);
autocomplete_remove(name_ac, name);
g_hash_table_remove(name_to_barejid, name);
// remove each fulljid
PContact contact = roster_get_contact(barejid);
GList *resources = p_contact_get_available_resources(contact);
while (resources != NULL) {
GString *fulljid = g_string_new(strdup(barejid));
g_string_append(fulljid, "/");
g_string_append(fulljid, strdup(resources->data));
autocomplete_remove(fulljid_ac, fulljid->str);
g_string_free(fulljid, TRUE);
resources = g_list_next(resources);
}
// remove the contact
g_hash_table_remove(contacts, barejid);
prof_handle_roster_remove(barejid);
// otherwise update local roster
} else {
// check for pending out subscriptions
gboolean pending_out = FALSE;
if ((ask != NULL) && (strcmp(ask, "subscribe") == 0)) {
pending_out = TRUE;
}
GSList *groups = _get_groups_from_item(item);
// update the local roster
roster_update(barejid, name, groups, sub, pending_out);
}
return 1;
}
static int
_roster_handle_result(xmpp_conn_t * const conn, xmpp_stanza_t * const stanza,
void * const userdata)
{
const char *id = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_ID);
// handle initial roster response
if (g_strcmp0(id, "roster") == 0) {
xmpp_stanza_t *query = xmpp_stanza_get_child_by_name(stanza,
STANZA_NAME_QUERY);
xmpp_stanza_t *item = xmpp_stanza_get_children(query);
while (item != NULL) {
const char *barejid =
xmpp_stanza_get_attribute(item, STANZA_ATTR_JID);
const char *name =
xmpp_stanza_get_attribute(item, STANZA_ATTR_NAME);
const char *sub =
xmpp_stanza_get_attribute(item, STANZA_ATTR_SUBSCRIPTION);
gboolean pending_out = FALSE;
const char *ask = xmpp_stanza_get_attribute(item, STANZA_ATTR_ASK);
if (g_strcmp0(ask, "subscribe") == 0) {
pending_out = TRUE;
}
GSList *groups = _get_groups_from_item(item);
gboolean added = roster_add(barejid, name, groups, sub, pending_out, TRUE);
if (!added) {
log_warning("Attempt to add contact twice: %s", barejid);
}
item = xmpp_stanza_get_next(item);
}
contact_presence_t conn_presence =
accounts_get_login_presence(jabber_get_account_name());
presence_update(conn_presence, NULL, 0);
}
return 1;
}
static void
_add_name_and_barejid(const char * const name, const char * const barejid)
{
if (name != NULL) {
autocomplete_add(name_ac, strdup(name));
g_hash_table_insert(name_to_barejid, strdup(name), strdup(barejid));
} else {
autocomplete_add(name_ac, strdup(barejid));
g_hash_table_insert(name_to_barejid, strdup(barejid), strdup(barejid));
}
}
static void
_replace_name(const char * const current_name, const char * const new_name,
const char * const barejid)
{
// current handle exists already
if (current_name != NULL) {
autocomplete_remove(name_ac, current_name);
g_hash_table_remove(name_to_barejid, current_name);
_add_name_and_barejid(new_name, barejid);
// no current handle
} else if (new_name != NULL) {
autocomplete_remove(name_ac, barejid);
g_hash_table_remove(name_to_barejid, barejid);
_add_name_and_barejid(new_name, barejid);
}
}
GSList *
_get_groups_from_item(xmpp_stanza_t *item)
{
GSList *groups = NULL;
xmpp_stanza_t *group_element = xmpp_stanza_get_children(item);
while (group_element != NULL) {
if (strcmp(xmpp_stanza_get_name(group_element), STANZA_NAME_GROUP) == 0) {
char *groupname = xmpp_stanza_get_text(group_element);
if (groupname != NULL) {
groups = g_slist_append(groups, groupname);
}
}
group_element = xmpp_stanza_get_next(group_element);
}
return groups;
}
static
gboolean _key_equals(void *key1, void *key2)
{
gchar *str1 = (gchar *) key1;
gchar *str2 = (gchar *) key2;
return (g_strcmp0(str1, str2) == 0);
}
static
gint _compare_contacts(PContact a, PContact b)
{
const char * utf8_str_a = NULL;
const char * utf8_str_b = NULL;
if (p_contact_name(a) != NULL) {
utf8_str_a = p_contact_name(a);
} else {
utf8_str_a = p_contact_barejid(a);
}
if (p_contact_name(b) != NULL) {
utf8_str_b = p_contact_name(b);
} else {
utf8_str_b = p_contact_barejid(b);
}
gchar *key_a = g_utf8_collate_key(utf8_str_a, -1);
gchar *key_b = g_utf8_collate_key(utf8_str_b, -1);
gint result = g_strcmp0(key_a, key_b);
g_free(key_a);
g_free(key_b);
return result;
}
static gboolean
_datetimes_equal(GDateTime *dt1, GDateTime *dt2)
{
if ((dt1 == NULL) && (dt2 == NULL)) {
return TRUE;
} else if ((dt1 == NULL) && (dt2 != NULL)) {
return FALSE;
} else if ((dt1 != NULL) && (dt2 == NULL)) {
return FALSE;
} else {
return g_date_time_equal(dt1, dt2);
}
}