Asterisk.org: Developer Documentation (28 Oct 2009)

Wed Oct 28 15:47:55 2009

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# 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 }