git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5533 65c4cc65-6c06-0410-ace0-fbb531ad65f3
197 lines
4.9 KiB
C
Executable file
197 lines
4.9 KiB
C
Executable file
/*
|
|
* Asterisk -- A telephony toolkit for Linux.
|
|
*
|
|
* Trivial application to read a variable
|
|
*
|
|
* Copyright (C) 2003, Digium
|
|
*
|
|
* Mark Spencer <markster@digium.com>
|
|
*
|
|
* This program is free software, distributed under the terms of
|
|
* the GNU General Public License
|
|
*/
|
|
|
|
#include "asterisk/lock.h"
|
|
#include "asterisk/file.h"
|
|
#include "asterisk/logger.h"
|
|
#include "asterisk/channel.h"
|
|
#include "asterisk/pbx.h"
|
|
#include "asterisk/app.h"
|
|
#include "asterisk/module.h"
|
|
#include "asterisk/translate.h"
|
|
#include "asterisk/options.h"
|
|
#include "asterisk/utils.h"
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
static char *tdesc = "Read Variable Application";
|
|
|
|
static char *app = "Read";
|
|
|
|
static char *synopsis = "Read a variable";
|
|
|
|
static char *descrip =
|
|
" Read(variable[|filename][|maxdigits][|option][|attempts][|timeout])\n\n"
|
|
"Reads a #-terminated string of digits a certain number of times from the\n"
|
|
"user in to the given variable.\n"
|
|
" filename -- file to play before reading digits.\n"
|
|
" maxdigits -- maximum acceptable number of digits. Stops reading after\n"
|
|
" maxdigits have been entered (without requiring the user to\n"
|
|
" press the '#' key).\n"
|
|
" Defaults to 0 - no limit - wait for the user press the '#' key.\n"
|
|
" Any value below 0 means the same. Max accepted value is 255.\n"
|
|
" option -- may be 'skip' to return immediately if the line is not up,\n"
|
|
" or 'noanswer' to read digits even if the line is not up.\n"
|
|
" attempts -- if greater than 1, that many attempts will be made in the \n"
|
|
" event no data is entered.\n"
|
|
" timeout -- if greater than 0, that value will override the default timeout.\n\n"
|
|
"Returns -1 on hangup or error and 0 otherwise.\n";
|
|
|
|
STANDARD_LOCAL_USER;
|
|
|
|
LOCAL_USER_DECL;
|
|
|
|
#define ast_next_data(instr,ptr,delim) if((ptr=strchr(instr,delim))) { *(ptr) = '\0' ; ptr++;}
|
|
|
|
static int read_exec(struct ast_channel *chan, void *data)
|
|
{
|
|
int res = 0;
|
|
struct localuser *u;
|
|
char tmp[256];
|
|
char *timeout = NULL;
|
|
char *varname = NULL;
|
|
char *filename = NULL;
|
|
char *loops;
|
|
char *maxdigitstr=NULL;
|
|
char *options=NULL;
|
|
int option_skip = 0;
|
|
int option_noanswer = 0;
|
|
int maxdigits=255;
|
|
int tries = 1;
|
|
int to = 0;
|
|
int x = 0;
|
|
char *argcopy = NULL;
|
|
char *args[8];
|
|
|
|
if (data)
|
|
argcopy = ast_strdupa((char *)data);
|
|
|
|
if (ast_separate_app_args(argcopy, '|', args, sizeof(args) / sizeof(args[0])) < 1) {
|
|
ast_log(LOG_WARNING, "Cannot Parse Arguements.\n");
|
|
return -1;
|
|
}
|
|
|
|
varname = args[x++];
|
|
filename = args[x++];
|
|
maxdigitstr = args[x++];
|
|
options = args[x++];
|
|
loops = args[x++];
|
|
|
|
if (options) {
|
|
if (!strcasecmp(options, "skip"))
|
|
option_skip = 1;
|
|
else if (!strcasecmp(options, "noanswer"))
|
|
option_noanswer = 1;
|
|
else {
|
|
if (strchr(options, 's'))
|
|
option_skip = 1;
|
|
if (strchr(options, 'n'))
|
|
option_noanswer = 1;
|
|
}
|
|
}
|
|
|
|
if(loops) {
|
|
tries = atoi(loops);
|
|
if(tries <= 0)
|
|
tries = 1;
|
|
}
|
|
|
|
if(timeout) {
|
|
to = atoi(timeout);
|
|
if(to <= 0)
|
|
to = 0;
|
|
}
|
|
|
|
if (!(filename) || ast_strlen_zero(filename))
|
|
filename = NULL;
|
|
if (maxdigitstr) {
|
|
maxdigits = atoi(maxdigitstr);
|
|
if ((maxdigits<1) || (maxdigits>255)) {
|
|
maxdigits = 255;
|
|
} else if (option_verbose > 2)
|
|
ast_verbose(VERBOSE_PREFIX_3 "Accepting a maximum of %d digits.\n", maxdigits);
|
|
}
|
|
if (!(varname) || ast_strlen_zero(varname)) {
|
|
ast_log(LOG_WARNING, "Invalid! Usage: Read(variable[|filename][|maxdigits][|option][|attempts][|timeout])\n\n");
|
|
return -1;
|
|
}
|
|
LOCAL_USER_ADD(u);
|
|
if (chan->_state != AST_STATE_UP) {
|
|
if (option_skip) {
|
|
/* At the user's option, skip if the line is not up */
|
|
pbx_builtin_setvar_helper(chan, varname, "\0");
|
|
LOCAL_USER_REMOVE(u);
|
|
return 0;
|
|
} else if (!option_noanswer) {
|
|
/* Otherwise answer unless we're supposed to read while on-hook */
|
|
res = ast_answer(chan);
|
|
}
|
|
}
|
|
if (!res) {
|
|
while(tries && !res) {
|
|
ast_stopstream(chan);
|
|
res = ast_app_getdata(chan, filename, tmp, maxdigits, 0);
|
|
if (res > -1) {
|
|
pbx_builtin_setvar_helper(chan, varname, tmp);
|
|
if (!ast_strlen_zero(tmp)) {
|
|
if (option_verbose > 2)
|
|
ast_verbose(VERBOSE_PREFIX_3 "User entered '%s'\n", tmp);
|
|
tries = 0;
|
|
} else {
|
|
tries--;
|
|
if (option_verbose > 2) {
|
|
if (tries)
|
|
ast_verbose(VERBOSE_PREFIX_3 "User entered nothing, %d chance(s) left\n", tries);
|
|
else
|
|
ast_verbose(VERBOSE_PREFIX_3 "User entered nothing.\n");
|
|
}
|
|
}
|
|
res = 0;
|
|
} else {
|
|
if (option_verbose > 2)
|
|
ast_verbose(VERBOSE_PREFIX_3 "User disconnected\n");
|
|
}
|
|
}
|
|
}
|
|
LOCAL_USER_REMOVE(u);
|
|
return res;
|
|
}
|
|
|
|
int unload_module(void)
|
|
{
|
|
STANDARD_HANGUP_LOCALUSERS;
|
|
return ast_unregister_application(app);
|
|
}
|
|
|
|
int load_module(void)
|
|
{
|
|
return ast_register_application(app, read_exec, synopsis, descrip);
|
|
}
|
|
|
|
char *description(void)
|
|
{
|
|
return tdesc;
|
|
}
|
|
|
|
int usecount(void)
|
|
{
|
|
int res;
|
|
STANDARD_USECOUNT(res);
|
|
return res;
|
|
}
|
|
|
|
char *key()
|
|
{
|
|
return ASTERISK_GPL_KEY;
|
|
}
|