privacy.c

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/*
 * Asterisk -- An open source telephony toolkit.
 *
 * Copyright (C) 1999 - 2005, Digium, Inc.
 *
 * Mark Spencer <markster@digium.com>
 *
 * See http://www.asterisk.org for more information about
 * the Asterisk project. Please do not directly contact
 * any of the maintainers of this project for assistance;
 * the project provides a web site, mailing lists and IRC
 * channels for your use.
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License Version 2. See the LICENSE file
 * at the top of the source tree.
 */
 
/*! \file
 *
 * \brief Privacy Routines
 *
 * \author Mark Spencer <markster@digium.com>
 */
 
/*** MODULEINFO
    <support_level>core</support_level>
 ***/
 
#include "asterisk.h"
 
#include <sys/time.h>
#include <signal.h>
#include <dirent.h>
 
#include "asterisk/channel.h"
#include "asterisk/file.h"
#include "asterisk/app.h"
#include "asterisk/dsp.h"
#include "asterisk/astdb.h"
#include "asterisk/callerid.h"
#include "asterisk/privacy.h"
#include "asterisk/utils.h"
#include "asterisk/lock.h"
 
int ast_privacy_check(char *dest, char *cid)
{
    char tmp[256] = "";
    char *trimcid = "";
    char *n, *l;
    int res;
    char key[256], result[256];
    if (cid)
        ast_copy_string(tmp, cid, sizeof(tmp));
    ast_callerid_parse(tmp, &n, &l);
    if (l) {
        ast_shrink_phone_number(l);
        trimcid = l;
    }
    snprintf(key, sizeof(key), "%s/%s", dest, trimcid);
    res = ast_db_get("privacy", key, result, sizeof(result));
    if (!res) {
        if (!strcasecmp(result, "allow"))
            return AST_PRIVACY_ALLOW;
        if (!strcasecmp(result, "deny"))
            return AST_PRIVACY_DENY;
        if (!strcasecmp(result, "kill"))
            return AST_PRIVACY_KILL;
        if (!strcasecmp(result, "torture"))
            return AST_PRIVACY_TORTURE;
    }
    return AST_PRIVACY_UNKNOWN;
}
 
int ast_privacy_reset(char *dest)
{
    if (!dest)
        return -1;
    return ast_db_deltree("privacy", dest);
}
 
int ast_privacy_set(char *dest, char *cid, int status)
{
    char tmp[256] = "";
    char *trimcid = "";
    char *n, *l;
    int res;
    char key[256];
    if (cid)
        ast_copy_string(tmp, cid, sizeof(tmp));
    ast_callerid_parse(tmp, &n, &l);
    if (l) {
        ast_shrink_phone_number(l);
        trimcid = l;
    }
    if (ast_strlen_zero(trimcid)) {
        /* Don't store anything for empty Caller*ID */
        return 0;
    }
    snprintf(key, sizeof(key), "%s/%s", dest, trimcid);
    if (status == AST_PRIVACY_UNKNOWN)
        res = ast_db_del("privacy", key);
    else if (status == AST_PRIVACY_ALLOW)
        res = ast_db_put("privacy", key, "allow");
    else if (status == AST_PRIVACY_DENY)
        res = ast_db_put("privacy", key, "deny");
    else if (status == AST_PRIVACY_KILL)
        res = ast_db_put("privacy", key, "kill");
    else if (status == AST_PRIVACY_TORTURE)
        res = ast_db_put("privacy", key, "torture");
    else
        res = -1;
    return res;
}