Fri Sep 29 11:12:31 2006

Asterisk developer's documentation


privacy.c

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00001 /*
00002  * Asterisk -- An open source telephony toolkit.
00003  *
00004  * Copyright (C) 1999 - 2005, Digium, Inc.
00005  *
00006  * Mark Spencer <markster@digium.com>
00007  *
00008  * See http://www.asterisk.org for more information about
00009  * the Asterisk project. Please do not directly contact
00010  * any of the maintainers of this project for assistance;
00011  * the project provides a web site, mailing lists and IRC
00012  * channels for your use.
00013  *
00014  * This program is free software, distributed under the terms of
00015  * the GNU General Public License Version 2. See the LICENSE file
00016  * at the top of the source tree.
00017  */
00018 
00019 /*! \file
00020  *
00021  * \brief Privacy Routines
00022  * 
00023  */
00024 
00025 #include <stdio.h>
00026 #include <stdlib.h>
00027 #include <string.h>
00028 #include <sys/time.h>
00029 #include <signal.h>
00030 #include <errno.h>
00031 #include <unistd.h>
00032 #include <dirent.h>
00033 
00034 #include "asterisk.h"
00035 
00036 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 7221 $")
00037 
00038 #include "asterisk/channel.h"
00039 #include "asterisk/file.h"
00040 #include "asterisk/app.h"
00041 #include "asterisk/dsp.h"
00042 #include "asterisk/logger.h"
00043 #include "asterisk/options.h"
00044 #include "asterisk/astdb.h"
00045 #include "asterisk/callerid.h"
00046 #include "asterisk/privacy.h"
00047 #include "asterisk/utils.h"
00048 #include "asterisk/lock.h"
00049 
00050 int ast_privacy_check(char *dest, char *cid)
00051 {
00052    char tmp[256] = "";
00053    char *trimcid = "";
00054    char *n, *l;
00055    int res;
00056    char key[256], result[256];
00057    if (cid)
00058       ast_copy_string(tmp, cid, sizeof(tmp));
00059    ast_callerid_parse(tmp, &n, &l);
00060    if (l) {
00061       ast_shrink_phone_number(l);
00062       trimcid = l;
00063    }
00064    snprintf(key, sizeof(key), "%s/%s", dest, trimcid);
00065    res = ast_db_get("privacy", key, result, sizeof(result));
00066    if (!res) {
00067       if (!strcasecmp(result, "allow"))
00068          return AST_PRIVACY_ALLOW;
00069       if (!strcasecmp(result, "deny"))
00070          return AST_PRIVACY_DENY;
00071       if (!strcasecmp(result, "kill"))
00072          return AST_PRIVACY_KILL;
00073       if (!strcasecmp(result, "torture"))
00074          return AST_PRIVACY_TORTURE;
00075    }
00076    return AST_PRIVACY_UNKNOWN;
00077 }
00078 
00079 int ast_privacy_reset(char *dest)
00080 {
00081    if (!dest)
00082       return -1;
00083    return ast_db_deltree("privacy", dest);
00084 }
00085 
00086 int ast_privacy_set(char *dest, char *cid, int status)
00087 {
00088    char tmp[256] = "";
00089    char *trimcid = "";
00090    char *n, *l;
00091    int res;
00092    char key[256];
00093    if (cid)
00094       ast_copy_string(tmp, cid, sizeof(tmp));
00095    ast_callerid_parse(tmp, &n, &l);
00096    if (l) {
00097       ast_shrink_phone_number(l);
00098       trimcid = l;
00099    }
00100    if (ast_strlen_zero(trimcid)) {
00101       /* Don't store anything for empty Caller*ID */
00102       return 0;
00103    }
00104    snprintf(key, sizeof(key), "%s/%s", dest, trimcid);
00105    if (status == AST_PRIVACY_UNKNOWN) 
00106       res = ast_db_del("privacy", key);
00107    else if (status == AST_PRIVACY_ALLOW)
00108       res = ast_db_put("privacy", key, "allow");
00109    else if (status == AST_PRIVACY_DENY)
00110       res = ast_db_put("privacy", key, "deny");
00111    else if (status == AST_PRIVACY_KILL)
00112       res = ast_db_put("privacy", key, "kill");
00113    else if (status == AST_PRIVACY_TORTURE)
00114       res = ast_db_put("privacy", key, "torture");
00115    else
00116       res = -1;
00117    return res;
00118 }

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