app_disa.c File Reference
DISA -- Direct Inward System Access Application. More...
#include "asterisk.h"#include <math.h>#include <sys/time.h>#include "asterisk/lock.h"#include "asterisk/file.h"#include "asterisk/channel.h"#include "asterisk/app.h"#include "asterisk/indications.h"#include "asterisk/pbx.h"#include "asterisk/module.h"#include "asterisk/translate.h"#include "asterisk/ulaw.h"#include "asterisk/callerid.h"#include "asterisk/stringfields.h"
Include dependency graph for app_disa.c:
Go to the source code of this file.
Enumerations | |
| enum | { NOANSWER_FLAG = (1 << 0), POUND_TO_END_FLAG = (1 << 1) } |
Functions | |
| static void | __reg_module (void) |
| static void | __unreg_module (void) |
| static int | disa_exec (struct ast_channel *chan, void *data) |
| static int | load_module (void) |
| static void | play_dialtone (struct ast_channel *chan, char *mailbox) |
| static int | unload_module (void) |
Variables | |
| static struct ast_module_info __MODULE_INFO_SECTION | __mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "DISA (Direct Inward System Access) Application" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, } |
| static char * | app = "DISA" |
| static struct ast_app_option | app_opts [128] = { [ 'n' ] = { .flag = NOANSWER_FLAG }, [ 'p' ] = { .flag = POUND_TO_END_FLAG },} |
| static struct ast_module_info * | ast_module_info = &__mod_info |
| enum { ... } | option_flags |
Detailed Description
DISA -- Direct Inward System Access Application.
Definition in file app_disa.c.
Enumeration Type Documentation
| anonymous enum |
Definition at line 115 of file app_disa.c.
{
NOANSWER_FLAG = (1 << 0),
POUND_TO_END_FLAG = (1 << 1),
} option_flags;
Function Documentation
| static void __reg_module | ( | void | ) | [static] |
Definition at line 402 of file app_disa.c.
| static void __unreg_module | ( | void | ) | [static] |
Definition at line 402 of file app_disa.c.
| static int disa_exec | ( | struct ast_channel * | chan, |
| void * | data | ||
| ) | [static] |
Definition at line 143 of file app_disa.c.
References ast_channel::_state, accountcode, app_opts, ast_answer(), AST_APP_ARG, ast_app_parse_options(), ast_callerid_split(), AST_CDR_FLAG_POSTED, ast_cdr_reset(), ast_clear_flag, AST_CONTROL_CONGESTION, AST_CONTROL_HANGUP, ast_copy_string(), ast_debug, AST_DECLARE_APP_ARGS, ast_exists_extension(), ast_explicit_goto(), AST_FLAG_END_DTMF_ONLY, AST_FRAME_CONTROL, AST_FRAME_DTMF, ast_frfree, ast_ignore_pattern(), ast_indicate(), ast_log(), ast_matchmore_extension(), AST_MAX_EXTENSION, ast_playtones_stop(), ast_read(), ast_safe_sleep(), ast_set_callerid(), ast_set_flag, AST_STANDARD_APP_ARGS, AST_STATE_UP, ast_strdupa, ast_string_field_set, ast_strlen_zero(), ast_test_flag, ast_tvdiff_ms(), ast_tvnow(), ast_waitfor(), ast_channel::cdr, ast_channel::cid, ast_callerid::cid_num, ast_channel::context, context, ast_frame::data, ast_pbx::dtimeoutms, exten, f, firstdigittimeout, ast_flags::flags, ast_frame::frametype, ast_channel::hangupcause, LOG_WARNING, mailbox, ast_channel::name, NOANSWER_FLAG, ast_channel::pbx, pbx_builtin_setvar_helper(), play_dialtone(), POUND_TO_END_FLAG, ast_pbx::rtimeoutms, ast_frame::subclass, and ast_frame::uint32.
Referenced by load_module().
{
int i = 0, j, k = 0, did_ignore = 0, special_noanswer = 0;
int firstdigittimeout = (chan->pbx ? chan->pbx->rtimeoutms : 20000);
int digittimeout = (chan->pbx ? chan->pbx->dtimeoutms : 10000);
struct ast_flags flags;
char *tmp, exten[AST_MAX_EXTENSION] = "", acctcode[20]="";
char pwline[256];
char ourcidname[256],ourcidnum[256];
struct ast_frame *f;
struct timeval lastdigittime;
int res;
FILE *fp;
AST_DECLARE_APP_ARGS(args,
AST_APP_ARG(passcode);
AST_APP_ARG(context);
AST_APP_ARG(cid);
AST_APP_ARG(mailbox);
AST_APP_ARG(options);
);
if (ast_strlen_zero(data)) {
ast_log(LOG_WARNING, "DISA requires an argument (passcode/passcode file)\n");
return -1;
}
ast_debug(1, "Digittimeout: %d\n", digittimeout);
ast_debug(1, "Responsetimeout: %d\n", firstdigittimeout);
tmp = ast_strdupa(data);
AST_STANDARD_APP_ARGS(args, tmp);
if (ast_strlen_zero(args.context))
args.context = "disa";
if (ast_strlen_zero(args.mailbox))
args.mailbox = "";
if (!ast_strlen_zero(args.options))
ast_app_parse_options(app_opts, &flags, NULL, args.options);
ast_debug(1, "Mailbox: %s\n",args.mailbox);
if (!ast_test_flag(&flags, NOANSWER_FLAG)) {
if (chan->_state != AST_STATE_UP) {
/* answer */
ast_answer(chan);
}
} else special_noanswer = 1;
ast_debug(1, "Context: %s\n",args.context);
if (!strcasecmp(args.passcode, "no-password")) {
k |= 1; /* We have the password */
ast_debug(1, "DISA no-password login success\n");
}
lastdigittime = ast_tvnow();
play_dialtone(chan, args.mailbox);
ast_set_flag(chan, AST_FLAG_END_DTMF_ONLY);
for (;;) {
/* if outa time, give em reorder */
if (ast_tvdiff_ms(ast_tvnow(), lastdigittime) > ((k&2) ? digittimeout : firstdigittimeout)) {
ast_debug(1,"DISA %s entry timeout on chan %s\n",
((k&1) ? "extension" : "password"),chan->name);
break;
}
if ((res = ast_waitfor(chan, -1) < 0)) {
ast_debug(1, "Waitfor returned %d\n", res);
continue;
}
if (!(f = ast_read(chan))) {
ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
return -1;
}
if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_HANGUP)) {
if (f->data.uint32)
chan->hangupcause = f->data.uint32;
ast_frfree(f);
ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
return -1;
}
/* If the frame coming in is not DTMF, just drop it and continue */
if (f->frametype != AST_FRAME_DTMF) {
ast_frfree(f);
continue;
}
j = f->subclass; /* save digit */
ast_frfree(f);
if (!i) {
k |= 2; /* We have the first digit */
ast_playtones_stop(chan);
}
lastdigittime = ast_tvnow();
/* got a DTMF tone */
if (i < AST_MAX_EXTENSION) { /* if still valid number of digits */
if (!(k&1)) { /* if in password state */
if (j == '#') { /* end of password */
/* see if this is an integer */
if (sscanf(args.passcode,"%30d",&j) < 1) { /* nope, it must be a filename */
fp = fopen(args.passcode,"r");
if (!fp) {
ast_log(LOG_WARNING,"DISA password file %s not found on chan %s\n",args.passcode,chan->name);
ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
return -1;
}
pwline[0] = 0;
while(fgets(pwline,sizeof(pwline) - 1,fp)) {
if (!pwline[0])
continue;
if (pwline[strlen(pwline) - 1] == '\n')
pwline[strlen(pwline) - 1] = 0;
if (!pwline[0])
continue;
/* skip comments */
if (pwline[0] == '#')
continue;
if (pwline[0] == ';')
continue;
AST_STANDARD_APP_ARGS(args, pwline);
ast_debug(1, "Mailbox: %s\n",args.mailbox);
/* password must be in valid format (numeric) */
if (sscanf(args.passcode,"%30d", &j) < 1)
continue;
/* if we got it */
if (!strcmp(exten,args.passcode)) {
if (ast_strlen_zero(args.context))
args.context = "disa";
if (ast_strlen_zero(args.mailbox))
args.mailbox = "";
break;
}
}
fclose(fp);
}
/* compare the two */
if (strcmp(exten,args.passcode)) {
ast_log(LOG_WARNING,"DISA on chan %s got bad password %s\n",chan->name,exten);
goto reorder;
}
/* password good, set to dial state */
ast_debug(1,"DISA on chan %s password is good\n",chan->name);
play_dialtone(chan, args.mailbox);
k|=1; /* In number mode */
i = 0; /* re-set buffer pointer */
exten[sizeof(acctcode)] = 0;
ast_copy_string(acctcode, exten, sizeof(acctcode));
exten[0] = 0;
ast_debug(1,"Successful DISA log-in on chan %s\n", chan->name);
continue;
}
} else {
if (j == '#') { /* end of extension .. maybe */
if (i == 0 &&
(ast_matchmore_extension(chan, args.context, "#", 1, chan->cid.cid_num) ||
ast_exists_extension(chan, args.context, "#", 1, chan->cid.cid_num)) ) {
/* Let the # be the part of, or the entire extension */
} else {
break;
}
}
}
exten[i++] = j; /* save digit */
exten[i] = 0;
if (!(k&1))
continue; /* if getting password, continue doing it */
/* if this exists */
/* user wants end of number, remove # */
if (ast_test_flag(&flags, POUND_TO_END_FLAG) && j == '#') {
exten[--i] = 0;
break;
}
if (ast_ignore_pattern(args.context, exten)) {
play_dialtone(chan, "");
did_ignore = 1;
} else
if (did_ignore) {
ast_playtones_stop(chan);
did_ignore = 0;
}
/* if can do some more, do it */
if (!ast_matchmore_extension(chan,args.context,exten,1, chan->cid.cid_num)) {
break;
}
}
}
ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
if (k == 3) {
int recheck = 0;
struct ast_flags cdr_flags = { AST_CDR_FLAG_POSTED };
if (!ast_exists_extension(chan, args.context, exten, 1, chan->cid.cid_num)) {
pbx_builtin_setvar_helper(chan, "INVALID_EXTEN", exten);
exten[0] = 'i';
exten[1] = '\0';
recheck = 1;
}
if (!recheck || ast_exists_extension(chan, args.context, exten, 1, chan->cid.cid_num)) {
ast_playtones_stop(chan);
/* We're authenticated and have a target extension */
if (!ast_strlen_zero(args.cid)) {
ast_callerid_split(args.cid, ourcidname, sizeof(ourcidname), ourcidnum, sizeof(ourcidnum));
ast_set_callerid(chan, ourcidnum, ourcidname, ourcidnum);
}
if (!ast_strlen_zero(acctcode))
ast_string_field_set(chan, accountcode, acctcode);
if (special_noanswer) cdr_flags.flags = 0;
ast_cdr_reset(chan->cdr, &cdr_flags);
ast_explicit_goto(chan, args.context, exten, 1);
return 0;
}
}
/* Received invalid, but no "i" extension exists in the given context */
reorder:
/* Play congestion for a bit */
ast_indicate(chan, AST_CONTROL_CONGESTION);
ast_safe_sleep(chan, 10*1000);
ast_playtones_stop(chan);
return -1;
}
| static int load_module | ( | void | ) | [static] |
Definition at line 396 of file app_disa.c.
References AST_MODULE_LOAD_DECLINE, AST_MODULE_LOAD_SUCCESS, ast_register_application_xml, and disa_exec().
{
return ast_register_application_xml(app, disa_exec) ?
AST_MODULE_LOAD_DECLINE : AST_MODULE_LOAD_SUCCESS;
}
| static void play_dialtone | ( | struct ast_channel * | chan, |
| char * | mailbox | ||
| ) | [static] |
Definition at line 125 of file app_disa.c.
References ast_app_has_voicemail(), ast_get_indication_tone(), ast_playtones_start(), ast_tone_zone_sound_unref(), ast_tonepair_start(), ast_tone_zone_sound::data, and ast_channel::zone.
Referenced by disa_exec().
{
struct ast_tone_zone_sound *ts = NULL;
if (ast_app_has_voicemail(mailbox, NULL)) {
ts = ast_get_indication_tone(chan->zone, "dialrecall");
} else {
ts = ast_get_indication_tone(chan->zone, "dial");
}
if (ts) {
ast_playtones_start(chan, 0, ts->data, 0);
ts = ast_tone_zone_sound_unref(ts);
} else {
ast_tonepair_start(chan, 350, 440, 0, 0);
}
}
| static int unload_module | ( | void | ) | [static] |
Definition at line 391 of file app_disa.c.
References ast_unregister_application().
{
return ast_unregister_application(app);
}
Variable Documentation
struct ast_module_info __MODULE_INFO_SECTION __mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "DISA (Direct Inward System Access) Application" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, } [static] |
Definition at line 402 of file app_disa.c.
char* app = "DISA" [static] |
Definition at line 113 of file app_disa.c.
struct ast_app_option app_opts[128] = { [ 'n' ] = { .flag = NOANSWER_FLAG }, [ 'p' ] = { .flag = POUND_TO_END_FLAG },} [static] |
Definition at line 123 of file app_disa.c.
Referenced by disa_exec().
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 402 of file app_disa.c.
| enum { ... } option_flags |
