Tue Aug 20 16:34:36 2013

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  * \author Mark Spencer <markster@digium.com> 
00024  */
00025 
00026 /*** MODULEINFO
00027    <support_level>core</support_level>
00028  ***/
00029 
00030 #include "asterisk.h"
00031 
00032 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 369001 $")
00033 
00034 #include <sys/time.h>
00035 #include <signal.h>
00036 #include <dirent.h>
00037 
00038 #include "asterisk/channel.h"
00039 #include "asterisk/file.h"
00040 #include "asterisk/app.h"
00041 #include "asterisk/dsp.h"
00042 #include "asterisk/astdb.h"
00043 #include "asterisk/callerid.h"
00044 #include "asterisk/privacy.h"
00045 #include "asterisk/utils.h"
00046 #include "asterisk/lock.h"
00047 
00048 int ast_privacy_check(char *dest, char *cid)
00049 {
00050    char tmp[256] = "";
00051    char *trimcid = "";
00052    char *n, *l;
00053    int res;
00054    char key[256], result[256];
00055    if (cid)
00056       ast_copy_string(tmp, cid, sizeof(tmp));
00057    ast_callerid_parse(tmp, &n, &l);
00058    if (l) {
00059       ast_shrink_phone_number(l);
00060       trimcid = l;
00061    }
00062    snprintf(key, sizeof(key), "%s/%s", dest, trimcid);
00063    res = ast_db_get("privacy", key, result, sizeof(result));
00064    if (!res) {
00065       if (!strcasecmp(result, "allow"))
00066          return AST_PRIVACY_ALLOW;
00067       if (!strcasecmp(result, "deny"))
00068          return AST_PRIVACY_DENY;
00069       if (!strcasecmp(result, "kill"))
00070          return AST_PRIVACY_KILL;
00071       if (!strcasecmp(result, "torture"))
00072          return AST_PRIVACY_TORTURE;
00073    }
00074    return AST_PRIVACY_UNKNOWN;
00075 }
00076 
00077 int ast_privacy_reset(char *dest)
00078 {
00079    if (!dest)
00080       return -1;
00081    return ast_db_deltree("privacy", dest);
00082 }
00083 
00084 int ast_privacy_set(char *dest, char *cid, int status)
00085 {
00086    char tmp[256] = "";
00087    char *trimcid = "";
00088    char *n, *l;
00089    int res;
00090    char key[256];
00091    if (cid)
00092       ast_copy_string(tmp, cid, sizeof(tmp));
00093    ast_callerid_parse(tmp, &n, &l);
00094    if (l) {
00095       ast_shrink_phone_number(l);
00096       trimcid = l;
00097    }
00098    if (ast_strlen_zero(trimcid)) {
00099       /* Don't store anything for empty Caller*ID */
00100       return 0;
00101    }
00102    snprintf(key, sizeof(key), "%s/%s", dest, trimcid);
00103    if (status == AST_PRIVACY_UNKNOWN) 
00104       res = ast_db_del("privacy", key);
00105    else if (status == AST_PRIVACY_ALLOW)
00106       res = ast_db_put("privacy", key, "allow");
00107    else if (status == AST_PRIVACY_DENY)
00108       res = ast_db_put("privacy", key, "deny");
00109    else if (status == AST_PRIVACY_KILL)
00110       res = ast_db_put("privacy", key, "kill");
00111    else if (status == AST_PRIVACY_TORTURE)
00112       res = ast_db_put("privacy", key, "torture");
00113    else
00114       res = -1;
00115    return res;
00116 }

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