This patch adds 'const' tags to a number of Asterisk APIs where they are appropriate (where the API already demanded that the function argument not be modified, but the compiler was not informed of that fact). The list includes: - CLI command handlers - CLI command handler arguments - AGI command handlers - AGI command handler arguments - Dialplan application handler arguments - Speech engine API function arguments In addition, various file-scope and function-scope constant arrays got 'const' and/or 'static' qualifiers where they were missing. Review: https://reviewboard.asterisk.org/r/251/ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@196072 65c4cc65-6c06-0410-ace0-fbb531ad65f3
204 lines
5.6 KiB
C
204 lines
5.6 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2005, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief Block all calls without Caller*ID, require phone # to be entered
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*
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* \author Mark Spencer <markster@digium.com>
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*
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* \ingroup applications
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*/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include "asterisk/lock.h"
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#include "asterisk/file.h"
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#include "asterisk/utils.h"
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#include "asterisk/channel.h"
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#include "asterisk/pbx.h"
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#include "asterisk/module.h"
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#include "asterisk/translate.h"
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#include "asterisk/image.h"
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#include "asterisk/callerid.h"
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#include "asterisk/app.h"
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#include "asterisk/config.h"
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/*** DOCUMENTATION
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<application name="PrivacyManager" language="en_US">
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<synopsis>
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Require phone number to be entered, if no CallerID sent
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</synopsis>
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<syntax>
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<parameter name="maxretries">
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<para>Total tries caller is allowed to input a callerid. Defaults to <literal>3</literal>.</para>
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</parameter>
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<parameter name="minlength">
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<para>Minimum allowable digits in the input callerid number. Defaults to <literal>10</literal>.</para>
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</parameter>
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<parameter name="context">
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<para>Context to check the given callerid against patterns.</para>
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</parameter>
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</syntax>
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<description>
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<para>If no Caller*ID is sent, PrivacyManager answers the channel and asks
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the caller to enter their phone number. The caller is given
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<replaceable>maxretries</replaceable> attempts to do so. The application does
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<emphasis>nothing</emphasis> if Caller*ID was received on the channel.</para>
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<para>The application sets the following channel variable upon completion:</para>
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<variablelist>
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<variable name="PRIVACYMGRSTATUS">
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<para>The status of the privacy manager's attempt to collect a phone number from the user.</para>
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<value name="SUCCESS"/>
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<value name="FAILED"/>
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</variable>
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</variablelist>
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</description>
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<see-also>
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<ref type="application">Zapateller</ref>
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</see-also>
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</application>
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***/
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static char *app = "PrivacyManager";
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static int privacy_exec(struct ast_channel *chan, const char *data)
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{
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int res=0;
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int retries;
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int maxretries = 3;
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int minlength = 10;
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int x = 0;
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char phone[30];
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char *parse = NULL;
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AST_DECLARE_APP_ARGS(args,
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AST_APP_ARG(maxretries);
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AST_APP_ARG(minlength);
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AST_APP_ARG(options);
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AST_APP_ARG(checkcontext);
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);
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if (!ast_strlen_zero(chan->cid.cid_num)) {
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ast_verb(3, "CallerID Present: Skipping\n");
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} else {
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/*Answer the channel if it is not already*/
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if (chan->_state != AST_STATE_UP) {
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if ((res = ast_answer(chan)))
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return -1;
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}
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if (!ast_strlen_zero(data)) {
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parse = ast_strdupa(data);
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AST_STANDARD_APP_ARGS(args, parse);
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if (args.maxretries) {
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if (sscanf(args.maxretries, "%d", &x) == 1)
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maxretries = x;
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else
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ast_log(LOG_WARNING, "Invalid max retries argument\n");
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}
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if (args.minlength) {
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if (sscanf(args.minlength, "%d", &x) == 1)
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minlength = x;
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else
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ast_log(LOG_WARNING, "Invalid min length argument\n");
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}
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}
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/* Play unidentified call */
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res = ast_safe_sleep(chan, 1000);
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if (!res)
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res = ast_streamfile(chan, "privacy-unident", chan->language);
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if (!res)
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res = ast_waitstream(chan, "");
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/* Ask for 10 digit number, give 3 attempts */
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for (retries = 0; retries < maxretries; retries++) {
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if (!res)
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res = ast_streamfile(chan, "privacy-prompt", chan->language);
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if (!res)
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res = ast_waitstream(chan, "");
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if (!res )
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res = ast_readstring(chan, phone, sizeof(phone) - 1, /* digit timeout ms */ 3200, /* first digit timeout */ 5000, "#");
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if (res < 0)
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break;
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/* Make sure we get at least digits */
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if (strlen(phone) >= minlength ) {
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/* if we have a checkcontext argument, do pattern matching */
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if (!ast_strlen_zero(args.checkcontext)) {
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if (!ast_exists_extension(NULL, args.checkcontext, phone, 1, NULL)) {
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res = ast_streamfile(chan, "privacy-incorrect", chan->language);
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if (!res) {
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res = ast_waitstream(chan, "");
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}
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} else {
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break;
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}
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} else {
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break;
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}
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} else {
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res = ast_streamfile(chan, "privacy-incorrect", chan->language);
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if (!res)
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res = ast_waitstream(chan, "");
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}
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}
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/* Got a number, play sounds and send them on their way */
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if ((retries < maxretries) && res >= 0 ) {
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res = ast_streamfile(chan, "privacy-thankyou", chan->language);
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if (!res)
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res = ast_waitstream(chan, "");
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ast_set_callerid (chan, phone, "Privacy Manager", NULL);
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/* Clear the unavailable presence bit so if it came in on PRI
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* the caller id will now be passed out to other channels
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*/
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chan->cid.cid_pres &= (AST_PRES_UNAVAILABLE ^ 0xFF);
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ast_verb(3, "Changed Caller*ID to %s, callerpres to %d\n",phone,chan->cid.cid_pres);
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pbx_builtin_setvar_helper(chan, "PRIVACYMGRSTATUS", "SUCCESS");
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} else {
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pbx_builtin_setvar_helper(chan, "PRIVACYMGRSTATUS", "FAILED");
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}
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}
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return 0;
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}
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static int unload_module(void)
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{
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return ast_unregister_application (app);
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}
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static int load_module(void)
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{
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return ast_register_application_xml(app, privacy_exec);
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Require phone number to be entered, if no CallerID sent");
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