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/*
 * preferences.h
 *
 * 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.
 *
 */

#ifndef PREFERENCES_H
#define PREFERENCES_H

#include "config.h"

#include <glib.h>

#define PREFS_MIN_LOG_SIZE 64
#define PREFS_MAX_LOG_SIZE 1048580

// represents all settings in .profrc
// each enum value is mapped to a group and key in .profrc (see preferences.c)
typedef enum {
    PREF_SPLASH,
    PREF_BEEP,
    PREF_VERCHECK,
    PREF_THEME,
    PREF_TITLEBAR_SHOW,
    PREF_TITLEBAR_GOODBYE,
    PREF_FLASH,
    PREF_INTYPE,
    PREF_HISTORY,
    PREF_CARBONS,
    PREF_RECEIPTS_SEND,
    PREF_RECEIPTS_REQUEST,
    PREF_OCCUPANTS,
    PREF_OCCUPANTS_SIZE,
    PREF_OCCUPANTS_JID,
    PREF_ROSTER,
    PREF_ROSTER_SIZE,
    PREF_ROSTER_OFFLINE,
    PREF_ROSTER_RESOURCE,
    PREF_ROSTER_PRESENCE,
    PREF_ROSTER_STATUS,
    PREF_ROSTER_EMPTY,
    PREF_ROSTER_BY,
    PREF_ROSTER_ORDER,
    PREF_ROSTER_COUNT,
    PREF_ROSTER_PRIORITY,
    PREF_MUC_PRIVILEGES,
    PREF_PRESENCE,
    PREF_WRAP,
    PREF_WINS_AUTO_TIDY,
    PREF_TIME_CONSOLE,
    PREF_TIME_CHAT,
    PREF_TIME_MUC,
    PREF_TIME_MUCCONFIG,
    PREF_TIME_PRIVATE,
    PREF_TIME_XMLCONSOLE,
    PREF_TIME_STATUSBAR,
    PREF_TIME_LASTACTIVITY,
    PREF_STATUSES,
    PREF_STATUSES_CONSOLE,
    PREF_STATUSES_CHAT,
    PREF_STATUSES_MUC,
    PREF_STATES,
    PREF_OUTTYPE,
    PREF_NOTIFY_TYPING,
    PREF_NOTIFY_TYPING_CURRENT,
    PREF_NOTIFY_MESSAGE,
    PREF_NOTIFY_MESSAGE_CURRENT,
    PREF_NOTIFY_MESSAGE_TEXT,
    PREF_NOTIFY_ROOM,
    PREF_NOTIFY_ROOM_CURRENT,
    PREF_NOTIFY_ROOM_TEXT,
    PREF_NOTIFY_INVITE,
    PREF_NOTIFY_SUB,
    PREF_CHLOG,
    PREF_GRLOG,
    PREF_AUTOAWAY_CHECK,
    PREF_AUTOAWAY_MODE,
    PREF_AUTOAWAY_MESSAGE,
    PREF_AUTOXA_MESSAGE,
    PREF_CONNECT_ACCOUNT,
    PREF_DEFAULT_ACCOUNT,
    PREF_LOG_ROTATE,
    PREF_LOG_SHARED,
    PREF_OTR_LOG,
    PREF_OTR_POLICY,
    PREF_RESOURCE_TITLE,
    PREF_RESOURCE_MESSAGE,
    PREF_INPBLOCK_DYNAMIC,
    PREF_ENC_WARN,
    PREF_PGP_LOG,
    PREF_TLS_CERTPATH,
    PREF_TLS_SHOW,
    PREF_LASTACTIVITY,
} preference_t;

typedef struct prof_alias_t {
    gchar *name;
    gchar *value;
} ProfAlias;

void prefs_load(void);
void prefs_close(void);

char* prefs_find_login(char *prefix);
void prefs_reset_login_search(void);
char* prefs_autocomplete_boolean_choice(const char *const prefix);
void prefs_reset_boolean_choice(void);

gint prefs_get_gone(void);
void prefs_set_gone(gint value);

void prefs_set_notify_remind(gint period);
gint prefs_get_notify_remind(void);

void prefs_set_max_log_size(gint value);
gint prefs_get_max_log_size(void);
gint prefs_get_priority(void);
void prefs_set_reconnect(gint value);
gint prefs_get_reconnect(void);
void prefs_set_autoping(gint value);
gint prefs_get_autoping(void);
gint prefs_get_inpblock(void);
void prefs_set_inpblock(gint value);

void prefs_set_occupants_size(gint value);
gint prefs_get_occupants_size(void);
void prefs_set_roster_size(gint value);
gint prefs_get_roster_size(void);

gint prefs_get_autoaway_time(void);
void prefs_set_autoaway_time(gint value);
gint prefs_get_autoxa_time(void);
void prefs_set_autoxa_time(gint value);

char prefs_get_otr_char(void);
void prefs_set_otr_char(char ch);
char prefs_get_pgp_char(void);
void prefs_set_pgp_char(char ch);

char prefs_get_roster_header_char(void);
void prefs_set_roster_header_char(char ch);
void prefs_clear_roster_header_char(void);
char prefs_get_roster_contact_char(void);
void prefs_set_roster_contact_char(char ch);
void prefs_clear_roster_contact_char(void);

gint prefs_get_roster_contact_indent(void);
void prefs_set_roster_contact_indent(gint value);
gint prefs_get_roster_resource_indent(void);
void prefs_set_roster_resource_indent(gint value);

void prefs_add_login(const char *jid);

gboolean prefs_add_alias(const char *const name, const char *const value);
gboolean prefs_remove_alias(const char *const name);
char* prefs_get_alias(const char *const name);
GList* prefs_get_aliases(void);
void prefs_free_aliases(GList *aliases);

gboolean prefs_get_boolean(preference_t pref);
void prefs_set_boolean(preference_t pref, gboolean value);
char* prefs_get_string(preference_t pref);
void prefs_free_string(char *pref);
void prefs_set_string(preference_t pref, char *value);

#endif
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/*
 * roster.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 "config.h"

#include <assert.h>
#include <stdlib.h>
#include <string.h>

#include <glib.h>

#ifdef HAVE_LIBMESODE
#include <mesode.h>
#endif
#ifdef HAVE_LIBSTROPHE
#include <strophe.h>
#endif

#include "log.h"
#include "profanity.h"
#include "ui/ui.h"
#include "event/server_events.h"
#include "event/client_events.h"
#include "tools/autocomplete.h"
#include "config/preferences.h"
#include "xmpp/connection.h"
#include "xmpp/roster.h"
#include "roster_list.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)

// callback data for group commands
typedef struct _group_data {
    char *name;
    char *group;
} GroupData;

// event handlers
static int _roster_set_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata);
static int _roster_result_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata);

// id handlers
static int _group_add_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata);
static int _group_remove_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata);

// helper functions
GSList* _get_groups_from_item(xmpp_stanza_t *item);

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_set_handler);
    HANDLE(STANZA_TYPE_RESULT, _roster_result_handler);
}

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_send_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();
    char *id = create_unique_id("roster");
    xmpp_stanza_t *iq = stanza_create_roster_set(ctx, id, barejid, name, NULL);
    free(id);
    xmpp_send(conn, iq);
    xmpp_stanza_release(iq);
}

void
roster_send_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);
}

void
roster_send_name_change(const char *const barejid, const char *const new_name, GSList *groups)
{
    xmpp_conn_t * const conn = connection_get_conn();
    xmpp_ctx_t * const ctx = connection_get_ctx();
    char *id = create_unique_id("roster");
    xmpp_stanza_t *iq = stanza_create_roster_set(ctx, id, barejid, new_name, groups);
    free(id);
    xmpp_send(conn, iq);
    xmpp_stanza_release(iq);
}

void
roster_send_add_to_group(const char *const group, PContact contact)
{
    GSList *groups = p_contact_groups(contact);
    GSList *new_groups = NULL;
    while (groups) {
        new_groups = g_slist_append(new_groups, strdup(groups->data));
        groups = g_slist_next(groups);
    }

    new_groups = g_slist_append(new_groups, strdup(group));
    // add an id handler to handle the response
    char *unique_id = create_unique_id(NULL);
    GroupData *data = malloc(sizeof(GroupData));
    data->group = strdup(group);
    if (p_contact_name(contact)) {
        data->name = strdup(p_contact_name(contact));
    } else {
        data->name = strdup(p_contact_barejid(contact));
    }

    xmpp_conn_t * const conn = connection_get_conn();
    xmpp_ctx_t * const ctx = connection_get_ctx();
    xmpp_id_handler_add(conn, _group_add_handler, unique_id, data);
    xmpp_stanza_t *iq = stanza_create_roster_set(ctx, unique_id, p_contact_barejid(contact),
        p_contact_name(contact), new_groups);
    xmpp_send(conn, iq);
    xmpp_stanza_release(iq);
    free(unique_id);
}

static int
_group_add_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza,
    void *const userdata)
{
    if (userdata) {
        GroupData *data = userdata;
        ui_group_added(data->name, data->group);
        free(data->name);
        free(data->group);
        free(userdata);
    }
    return 0;
}

void
roster_send_remove_from_group(const char *const group, PContact contact)
{
    GSList *groups = p_contact_groups(contact);
    GSList *new_groups = NULL;
    while (groups) {
        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();

    // add an id handler to handle the response
    char *unique_id = create_unique_id(NULL);
    GroupData *data = malloc(sizeof(GroupData));
    data->group = strdup(group);
    if (p_contact_name(contact)) {
        data->name = strdup(p_contact_name(contact));
    } else {
        data->name = strdup(p_contact_barejid(contact));
    }

    xmpp_id_handler_add(conn, _group_remove_handler, unique_id, data);
    xmpp_stanza_t *iq = stanza_create_roster_set(ctx, unique_id, p_contact_barejid(contact),
        p_contact_name(contact), new_groups);
    xmpp_send(conn, iq);
    xmpp_stanza_release(iq);
    free(unique_id);
}

static int
_group_remove_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza,
    void *const userdata)
{
    if (userdata) {
        GroupData *data = userdata;
        ui_group_removed(data->name, data->group);
        free(data->name);
        free(data->group);
        free(userdata);
    }
    return 0;
}

static int
_roster_set_handler(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 && (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);
    gchar *barejid_lower = g_utf8_strdown(barejid, -1);
    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);

    // do not set nickname to empty string, set to NULL instead
    if (name && (strlen(name) == 0)) {
        name = NULL;
    }

    // remove from roster
    if (g_strcmp0(sub, "remove") == 0) {
        // remove barejid and name
        if (name == NULL) {
            name = barejid_lower;
        }
        roster_remove(name, barejid_lower);
        ui_roster_remove(barejid_lower);

    // otherwise update local roster
    } else {

        // check for pending out subscriptions
        gboolean pending_out = FALSE;
        if (ask && (strcmp(ask, "subscribe") == 0)) {
            pending_out = TRUE;
        }

        GSList *groups = _get_groups_from_item(item);

        // update the local roster
        PContact contact = roster_get_contact(barejid_lower);
        if (contact == NULL) {
            gboolean added = roster_add(barejid_lower, name, groups, sub, pending_out);
            if (added) {
                ui_roster_add(barejid_lower, name);
            }
        } else {
            sv_ev_roster_update(barejid_lower, name, groups, sub, pending_out);
        }
    }

    g_free(barejid_lower);

    return 1;
}

static int
_roster_result_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata)
{
    const char *id = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_ID);

    if (g_strcmp0(id, "roster") != 0) {
        return 1;
    }

    // handle initial roster response
    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) {
        const char *barejid = xmpp_stanza_get_attribute(item, STANZA_ATTR_JID);
        gchar *barejid_lower = g_utf8_strdown(barejid, -1);
        const char *name = xmpp_stanza_get_attribute(item, STANZA_ATTR_NAME);
        const char *sub = xmpp_stanza_get_attribute(item, STANZA_ATTR_SUBSCRIPTION);

        // do not set nickname to empty string, set to NULL instead
        if (name && (strlen(name) == 0)) name = NULL;

        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_lower, name, groups, sub, pending_out);
        if (!added) {
            log_warning("Attempt to add contact twice: %s", barejid_lower);
        }

        g_free(barejid_lower);
        item = xmpp_stanza_get_next(item);
    }

    sv_ev_roster_received();

    return 1;
}

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) {
        if (strcmp(xmpp_stanza_get_name(group_element), STANZA_NAME_GROUP) == 0) {
            char *groupname = xmpp_stanza_get_text(group_element);
            if (groupname) {
                groups = g_slist_append(groups, groupname);
            }
        }
        group_element = xmpp_stanza_get_next(group_element);
    }

    return groups;
}