1
0
mirror of https://github.com/profanity-im/profanity.git synced 2024-10-27 20:30:13 -04:00
profanity/src/muc.c
Michael Vetter a6f27d3ea7 Fix pointer dereferencing
Setting the pointer to NULL had no effect outside the function so far.
2015-10-26 14:24:11 +01:00

981 lines
25 KiB
C

/*
* muc.c
*
* Copyright (C) 2012 - 2015 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/>.
*
* In addition, as a special exception, the copyright holders give permission to
* link the code of portions of this program with the OpenSSL library under
* certain conditions as described in each individual source file, and
* distribute linked combinations including the two.
*
* You must obey the GNU General Public License in all respects for all of the
* code used other than OpenSSL. If you modify file(s) with this exception, you
* may extend this exception to your version of the file(s), but you are not
* obligated to do so. If you do not wish to do so, delete this exception
* statement from your version. If you delete this exception statement from all
* source files in the program, then also delete it here.
*
*/
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <glib.h>
#include "contact.h"
#include "common.h"
#include "jid.h"
#include "tools/autocomplete.h"
#include "ui/ui.h"
#include "window_list.h"
#include "muc.h"
typedef struct _muc_room_t {
char *room; // e.g. test@conference.server
char *nick; // e.g. Some User
muc_role_t role;
muc_affiliation_t affiliation;
char *password;
char *subject;
char *autocomplete_prefix;
gboolean pending_config;
GList *pending_broadcasts;
gboolean autojoin;
gboolean pending_nick_change;
GHashTable *roster;
Autocomplete nick_ac;
Autocomplete jid_ac;
GHashTable *nick_changes;
gboolean roster_received;
muc_member_type_t member_type;
} ChatRoom;
GHashTable *rooms = NULL;
GHashTable *invite_passwords = NULL;
Autocomplete invite_ac;
static void _free_room(ChatRoom *room);
static gint _compare_occupants(Occupant *a, Occupant *b);
static muc_role_t _role_from_string(const char *const role);
static muc_affiliation_t _affiliation_from_string(const char *const affiliation);
static char* _role_to_string(muc_role_t role);
static char* _affiliation_to_string(muc_affiliation_t affiliation);
static Occupant* _muc_occupant_new(const char *const nick, const char *const jid, muc_role_t role,
muc_affiliation_t affiliation, resource_presence_t presence, const char *const status);
static void _occupant_free(Occupant *occupant);
void
muc_init(void)
{
invite_ac = autocomplete_new();
rooms = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, (GDestroyNotify)_free_room);
invite_passwords = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);
}
void
muc_close(void)
{
autocomplete_free(invite_ac);
g_hash_table_destroy(rooms);
g_hash_table_destroy(invite_passwords);
rooms = NULL;
invite_passwords = NULL;
}
void
muc_invites_add(const char *const room, const char *const password)
{
autocomplete_add(invite_ac, room);
if (password) {
g_hash_table_replace(invite_passwords, strdup(room), strdup(password));
}
}
void
muc_invites_remove(const char *const room)
{
autocomplete_remove(invite_ac, room);
g_hash_table_remove(invite_passwords, room);
}
gint
muc_invites_count(void)
{
return autocomplete_length(invite_ac);
}
GSList*
muc_invites(void)
{
return autocomplete_create_list(invite_ac);
}
char*
muc_invite_password(const char *const room)
{
return g_hash_table_lookup(invite_passwords, room);
}
gboolean
muc_invites_contain(const char *const room)
{
GSList *invites = autocomplete_create_list(invite_ac);
GSList *curr = invites;
while (curr) {
if (strcmp(curr->data, room) == 0) {
g_slist_free_full(invites, g_free);
return TRUE;
} else {
curr = g_slist_next(curr);
}
}
g_slist_free_full(invites, g_free);
return FALSE;
}
void
muc_invites_reset_ac(void)
{
autocomplete_reset(invite_ac);
}
char*
muc_invites_find(const char *const search_str)
{
return autocomplete_complete(invite_ac, search_str, TRUE);
}
void
muc_invites_clear(void)
{
autocomplete_clear(invite_ac);
if (invite_passwords) {
g_hash_table_remove_all(invite_passwords);
}
}
void
muc_join(const char *const room, const char *const nick, const char *const password, gboolean autojoin)
{
ChatRoom *new_room = malloc(sizeof(ChatRoom));
new_room->room = strdup(room);
new_room->nick = strdup(nick);
new_room->role = MUC_ROLE_NONE;
new_room->affiliation = MUC_AFFILIATION_NONE;
new_room->autocomplete_prefix = NULL;
if (password) {
new_room->password = strdup(password);
} else {
new_room->password = NULL;
}
new_room->subject = NULL;
new_room->pending_broadcasts = NULL;
new_room->pending_config = FALSE;
new_room->roster = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, (GDestroyNotify)_occupant_free);
new_room->nick_ac = autocomplete_new();
new_room->jid_ac = autocomplete_new();
new_room->nick_changes = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);
new_room->roster_received = FALSE;
new_room->pending_nick_change = FALSE;
new_room->autojoin = autojoin;
new_room->member_type = MUC_MEMBER_TYPE_UNKNOWN;
g_hash_table_insert(rooms, strdup(room), new_room);
}
void
muc_leave(const char *const room)
{
g_hash_table_remove(rooms, room);
}
gboolean
muc_requires_config(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
return chat_room->pending_config;
} else {
return FALSE;
}
}
void
muc_set_requires_config(const char *const room, gboolean val)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
chat_room->pending_config = val;
}
}
void
muc_set_features(const char *const room, GSList *features)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room && features) {
if (g_slist_find_custom(features, "muc_membersonly", (GCompareFunc)g_strcmp0)) {
chat_room->member_type = MUC_MEMBER_TYPE_MEMBERS_ONLY;
} else {
chat_room->member_type = MUC_MEMBER_TYPE_PUBLIC;
}
}
}
/*
* Returns TRUE if the user is currently in the room
*/
gboolean
muc_active(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
return (chat_room != NULL);
}
gboolean
muc_autojoin(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
return chat_room->autojoin;
} else {
return FALSE;
}
}
void
muc_set_subject(const char *const room, const char *const subject)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
free(chat_room->subject);
if (subject) {
chat_room->subject = strdup(subject);
} else {
chat_room->subject = NULL;
}
}
}
char*
muc_subject(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
return chat_room->subject;
} else {
return NULL;
}
}
void
muc_pending_broadcasts_add(const char *const room, const char *const message)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
chat_room->pending_broadcasts = g_list_append(chat_room->pending_broadcasts, strdup(message));
}
}
GList*
muc_pending_broadcasts(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
return chat_room->pending_broadcasts;
} else {
return NULL;
}
}
char*
muc_old_nick(const char *const room, const char *const new_nick)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room && chat_room->pending_nick_change) {
return g_hash_table_lookup(chat_room->nick_changes, new_nick);
} else {
return NULL;
}
}
/*
* Flag that the user has sent a nick change to the service
* and is awaiting the response
*/
void
muc_nick_change_start(const char *const room, const char *const new_nick)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
chat_room->pending_nick_change = TRUE;
g_hash_table_insert(chat_room->nick_changes, strdup(new_nick), strdup(chat_room->nick));
}
}
/*
* Returns TRUE if the room is awaiting the result of a
* nick change
*/
gboolean
muc_nick_change_pending(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
return chat_room->pending_nick_change;
} else {
return FALSE;
}
}
/*
* Change the current nick name for the room, call once
* the service has responded
*/
void
muc_nick_change_complete(const char *const room, const char *const nick)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
g_hash_table_remove(chat_room->roster, chat_room->nick);
autocomplete_remove(chat_room->nick_ac, chat_room->nick);
free(chat_room->nick);
chat_room->nick = strdup(nick);
chat_room->pending_nick_change = FALSE;
g_hash_table_remove(chat_room->nick_changes, nick);
}
}
/*
* Return a list of room names
* The contents of the list are owned by the chat room and should not be
* modified or freed.
*/
GList*
muc_rooms(void)
{
return g_hash_table_get_keys(rooms);
}
/*
* Return current users nickname for the specified room
* The nickname is owned by the chat room and should not be modified or freed
*/
char*
muc_nick(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
return chat_room->nick;
} else {
return NULL;
}
}
/*
* Return password for the specified room
* The password is owned by the chat room and should not be modified or freed
*/
char*
muc_password(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
return chat_room->password;
} else {
return NULL;
}
}
/*
* Returns TRUE if the specified nick exists in the room's roster
*/
gboolean
muc_roster_contains_nick(const char *const room, const char *const nick)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
Occupant *occupant = g_hash_table_lookup(chat_room->roster, nick);
return (occupant != NULL);
} else {
return FALSE;
}
}
/*
* Add a new chat room member to the room's roster
*/
gboolean
muc_roster_add(const char *const room, const char *const nick, const char *const jid, const char *const role,
const char *const affiliation, const char *const show, const char *const status)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
gboolean updated = FALSE;
resource_presence_t new_presence = resource_presence_from_string(show);
if (chat_room) {
Occupant *old = g_hash_table_lookup(chat_room->roster, nick);
if (!old) {
updated = TRUE;
autocomplete_add(chat_room->nick_ac, nick);
} else if (old->presence != new_presence ||
(g_strcmp0(old->status, status) != 0)) {
updated = TRUE;
}
resource_presence_t presence = resource_presence_from_string(show);
muc_role_t role_t = _role_from_string(role);
muc_affiliation_t affiliation_t = _affiliation_from_string(affiliation);
Occupant *occupant = _muc_occupant_new(nick, jid, role_t, affiliation_t, presence, status);
g_hash_table_replace(chat_room->roster, strdup(nick), occupant);
if (jid) {
Jid *jidp = jid_create(jid);
if (jidp->barejid) {
autocomplete_add(chat_room->jid_ac, jidp->barejid);
}
jid_destroy(jidp);
}
}
return updated;
}
/*
* Remove a room member from the room's roster
*/
void
muc_roster_remove(const char *const room, const char *const nick)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
g_hash_table_remove(chat_room->roster, nick);
autocomplete_remove(chat_room->nick_ac, nick);
}
}
Occupant*
muc_roster_item(const char *const room, const char *const nick)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
Occupant *occupant = g_hash_table_lookup(chat_room->roster, nick);
return occupant;
} else {
return NULL;
}
}
/*
* Return a list of PContacts representing the room members in the room's roster
*/
GList*
muc_roster(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
GList *result = NULL;
GList *occupants = g_hash_table_get_values(chat_room->roster);
GList *curr = occupants;
while (curr) {
result = g_list_insert_sorted(result, curr->data, (GCompareFunc)_compare_occupants);
curr = g_list_next(curr);
}
g_list_free(occupants);
return result;
} else {
return NULL;
}
}
/*
* Return a Autocomplete representing the room member's in the roster
*/
Autocomplete
muc_roster_ac(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
return chat_room->nick_ac;
} else {
return NULL;
}
}
Autocomplete
muc_roster_jid_ac(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
return chat_room->jid_ac;
} else {
return NULL;
}
}
/*
* Set to TRUE when the rooms roster has been fully received
*/
void
muc_roster_set_complete(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
chat_room->roster_received = TRUE;
}
}
/*
* Returns TRUE id the rooms roster has been fully received
*/
gboolean
muc_roster_complete(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
return chat_room->roster_received;
} else {
return FALSE;
}
}
gboolean
muc_occupant_available(Occupant *occupant)
{
return (occupant->presence == RESOURCE_ONLINE || occupant->presence == RESOURCE_CHAT);
}
const char*
muc_occupant_affiliation_str(Occupant *occupant)
{
return _affiliation_to_string(occupant->affiliation);
}
const char*
muc_occupant_role_str(Occupant *occupant)
{
return _role_to_string(occupant->role);
}
GSList*
muc_occupants_by_role(const char *const room, muc_role_t role)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
GSList *result = NULL;
GHashTableIter iter;
gpointer key;
gpointer value;
g_hash_table_iter_init(&iter, chat_room->roster);
while (g_hash_table_iter_next(&iter, &key, &value)) {
Occupant *occupant = (Occupant *)value;
if (occupant->role == role) {
result = g_slist_insert_sorted(result, value, (GCompareFunc)_compare_occupants);
}
}
return result;
} else {
return NULL;
}
}
GSList*
muc_occupants_by_affiliation(const char *const room, muc_affiliation_t affiliation)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
GSList *result = NULL;
GHashTableIter iter;
gpointer key;
gpointer value;
g_hash_table_iter_init(&iter, chat_room->roster);
while (g_hash_table_iter_next(&iter, &key, &value)) {
Occupant *occupant = (Occupant *)value;
if (occupant->affiliation == affiliation) {
result = g_slist_insert_sorted(result, value, (GCompareFunc)_compare_occupants);
}
}
return result;
} else {
return NULL;
}
}
/*
* Remove the old_nick from the roster, and flag that a pending nickname change
* is in progress
*/
void
muc_occupant_nick_change_start(const char *const room, const char *const new_nick, const char *const old_nick)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
g_hash_table_insert(chat_room->nick_changes, strdup(new_nick), strdup(old_nick));
muc_roster_remove(room, old_nick);
}
}
/*
* Complete the pending nick name change for a contact in the room's roster
* The new nick name will be added to the roster
* The old nick name will be returned in a new string which must be freed by
* the caller
*/
char*
muc_roster_nick_change_complete(const char *const room, const char *const nick)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
char *old_nick = g_hash_table_lookup(chat_room->nick_changes, nick);
if (old_nick) {
char *old_nick_cpy = strdup(old_nick);
g_hash_table_remove(chat_room->nick_changes, nick);
return old_nick_cpy;
}
}
return NULL;
}
char*
muc_autocomplete(ProfWin *window, const char *const input)
{
if (window->type == WIN_MUC) {
ProfMucWin *mucwin = (ProfMucWin*)window;
assert(mucwin->memcheck == PROFMUCWIN_MEMCHECK);
ChatRoom *chat_room = g_hash_table_lookup(rooms, mucwin->roomjid);
if (chat_room && chat_room->nick_ac) {
const char * search_str = NULL;
gchar *last_space = g_strrstr(input, " ");
if (!last_space) {
search_str = input;
if (!chat_room->autocomplete_prefix) {
chat_room->autocomplete_prefix = strdup("");
}
} else {
search_str = last_space+1;
if (!chat_room->autocomplete_prefix) {
chat_room->autocomplete_prefix = g_strndup(input, search_str - input);
}
}
char *result = autocomplete_complete(chat_room->nick_ac, search_str, FALSE);
if (result) {
GString *replace_with = g_string_new(chat_room->autocomplete_prefix);
g_string_append(replace_with, result);
if (!last_space || (*(last_space+1) == '\0')) {
g_string_append(replace_with, ": ");
}
g_free(result);
result = replace_with->str;
g_string_free(replace_with, FALSE);
return result;
}
}
}
return NULL;
}
void
muc_jid_autocomplete_reset(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
if (chat_room->jid_ac) {
autocomplete_reset(chat_room->jid_ac);
}
}
}
void
muc_jid_autocomplete_add_all(const char *const room, GSList *jids)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
if (chat_room->jid_ac) {
GSList *curr_jid = jids;
while (curr_jid) {
char *jid = curr_jid->data;
Jid *jidp = jid_create(jid);
if (jidp) {
if (jidp->barejid) {
autocomplete_add(chat_room->jid_ac, jidp->barejid);
}
}
jid_destroy(jidp);
curr_jid = g_slist_next(curr_jid);
}
}
}
}
void
muc_autocomplete_reset(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
if (chat_room->nick_ac) {
autocomplete_reset(chat_room->nick_ac);
}
if (chat_room->autocomplete_prefix) {
free(chat_room->autocomplete_prefix);
chat_room->autocomplete_prefix = NULL;
}
}
}
char*
muc_role_str(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
return _role_to_string(chat_room->role);
} else {
return "none";
}
}
void
muc_set_role(const char *const room, const char *const role)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
chat_room->role = _role_from_string(role);
}
}
char*
muc_affiliation_str(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
return _affiliation_to_string(chat_room->affiliation);
} else {
return "none";
}
}
void
muc_set_affiliation(const char *const room, const char *const affiliation)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
chat_room->affiliation = _affiliation_from_string(affiliation);
}
}
muc_member_type_t
muc_member_type(const char *const room)
{
ChatRoom *chat_room = g_hash_table_lookup(rooms, room);
if (chat_room) {
return chat_room->member_type;
} else {
return MUC_MEMBER_TYPE_UNKNOWN;
}
}
static void
_free_room(ChatRoom *room)
{
if (room) {
free(room->room);
free(room->nick);
free(room->subject);
free(room->password);
free(room->autocomplete_prefix);
if (room->roster) {
g_hash_table_destroy(room->roster);
}
autocomplete_free(room->nick_ac);
autocomplete_free(room->jid_ac);
if (room->nick_changes) {
g_hash_table_destroy(room->nick_changes);
}
if (room->pending_broadcasts) {
g_list_free_full(room->pending_broadcasts, free);
}
free(room);
}
}
static gint
_compare_occupants(Occupant *a, Occupant *b)
{
const char * utf8_str_a = a->nick_collate_key;
const char * utf8_str_b = b->nick_collate_key;
gint result = g_strcmp0(utf8_str_a, utf8_str_b);
return result;
}
static muc_role_t
_role_from_string(const char *const role)
{
if (role) {
if (g_strcmp0(role, "visitor") == 0) {
return MUC_ROLE_VISITOR;
} else if (g_strcmp0(role, "participant") == 0) {
return MUC_ROLE_PARTICIPANT;
} else if (g_strcmp0(role, "moderator") == 0) {
return MUC_ROLE_MODERATOR;
} else {
return MUC_ROLE_NONE;
}
} else {
return MUC_ROLE_NONE;
}
}
static char*
_role_to_string(muc_role_t role)
{
char *result = NULL;
switch (role) {
case MUC_ROLE_NONE:
result = "none";
break;
case MUC_ROLE_VISITOR:
result = "visitor";
break;
case MUC_ROLE_PARTICIPANT:
result = "participant";
break;
case MUC_ROLE_MODERATOR:
result = "moderator";
break;
default:
result = "none";
break;
}
return result;
}
static muc_affiliation_t
_affiliation_from_string(const char *const affiliation)
{
if (affiliation) {
if (g_strcmp0(affiliation, "outcast") == 0) {
return MUC_AFFILIATION_OUTCAST;
} else if (g_strcmp0(affiliation, "member") == 0) {
return MUC_AFFILIATION_MEMBER;
} else if (g_strcmp0(affiliation, "admin") == 0) {
return MUC_AFFILIATION_ADMIN;
} else if (g_strcmp0(affiliation, "owner") == 0) {
return MUC_AFFILIATION_OWNER;
} else {
return MUC_AFFILIATION_NONE;
}
} else {
return MUC_AFFILIATION_NONE;
}
}
static char*
_affiliation_to_string(muc_affiliation_t affiliation)
{
char *result = NULL;
switch (affiliation) {
case MUC_AFFILIATION_NONE:
result = "none";
break;
case MUC_AFFILIATION_OUTCAST:
result = "outcast";
break;
case MUC_AFFILIATION_MEMBER:
result = "member";
break;
case MUC_AFFILIATION_ADMIN:
result = "admin";
break;
case MUC_AFFILIATION_OWNER:
result = "owner";
break;
default:
result = "none";
break;
}
return result;
}
static Occupant*
_muc_occupant_new(const char *const nick, const char *const jid, muc_role_t role, muc_affiliation_t affiliation,
resource_presence_t presence, const char *const status)
{
Occupant *occupant = malloc(sizeof(Occupant));
if (nick) {
occupant->nick = strdup(nick);
occupant->nick_collate_key = g_utf8_collate_key(occupant->nick, -1);
} else {
occupant->nick = NULL;
occupant->nick_collate_key = NULL;
}
if (jid) {
occupant->jid = strdup(jid);
} else {
occupant->jid = NULL;
}
occupant->presence = presence;
if (status) {
occupant->status = strdup(status);
} else {
occupant->status = NULL;
}
occupant->role = role;
occupant->affiliation = affiliation;
return occupant;
}
static void
_occupant_free(Occupant *occupant)
{
if (occupant) {
free(occupant->nick);
free(occupant->nick_collate_key);
free(occupant->jid);
free(occupant->status);
free(occupant);
}
}