kenmirrors/asterisk
1
0
Fork 0
mirror of https://github.com/asterisk/asterisk.git synced 2025-09-05 20:20:07 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fix DTMF blind transfer continuing to execute dialplan after transfer.

Browse Source 
Party A calls Party B.
Party A DTMF blind transfers Party B to Party C.
Party A channel continues to execute dialplan.

* Fixed the return value of builtin_blindtransfer() to return the correct
value after a transfer so the dialplan will not keep executing.

* Removed unnecessary connected line update that did not really do
anything.

* Made access to GOTO_ON_BLINDXFR thread safe in check_goto_on_transfer().

* Fixed leak of xferchan for failure cases in check_goto_on_transfer().

* Updated debug messages in builtin_blindtransfer() and
check_goto_on_transfer().

(closes issue ASTERISK-18275)
Reported by: rmudgett
Tested by: rmudgett
........

Merged revisions 340809 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 340810 from http://svn.asterisk.org/svn/asterisk/branches/10


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@340813 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Richard Mudgett
2011-10-13 23:08:48 +00:00
parent d0ab521e61
commit cabf08b511
1 changed files with 49 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

78
main/features.c
View File

@@ -845,35 +845,49 @@ static void set_c_e_p(struct ast_channel *chan, const char *context, const char
static void check_goto_on_transfer(struct ast_channel *chan)
{
struct ast_channel *xferchan;
const char *val = pbx_builtin_getvar_helper(chan, "GOTO_ON_BLINDXFR");
char *x, *goto_on_transfer;
struct ast_frame *f;
const char *val;
char *goto_on_transfer;
char *x;
if (ast_strlen_zero(val))
ast_channel_lock(chan);
val = pbx_builtin_getvar_helper(chan, "GOTO_ON_BLINDXFR");
if (ast_strlen_zero(val)) {
ast_channel_unlock(chan);
return;
goto_on_transfer = ast_strdupa(val);
if (!(xferchan = ast_channel_alloc(0, AST_STATE_DOWN, 0, 0, "", "", "", chan->linkedid, 0, "%s", chan->name)))
return;
for (x = goto_on_transfer; x && *x; x++) {
if (*x == '^')
*x = ',';
}
goto_on_transfer = ast_strdupa(val);
ast_channel_unlock(chan);
ast_debug(1, "Attempting GOTO_ON_BLINDXFR=%s for %s.\n", val, chan->name);
xferchan = ast_channel_alloc(0, AST_STATE_DOWN, 0, 0, "", "", "", chan->linkedid, 0,
"%s", chan->name);
if (!xferchan) {
return;
}
/* Make formats okay */
xferchan->readformat = chan->readformat;
xferchan->writeformat = chan->writeformat;
ast_channel_masquerade(xferchan, chan);
if (ast_channel_masquerade(xferchan, chan)) {
/* Failed to setup masquerade. */
ast_hangup(xferchan);
return;
}
for (x = goto_on_transfer; *x; ++x) {
if (*x == '^') {
*x = ',';
}
}
ast_parseable_goto(xferchan, goto_on_transfer);
xferchan->_state = AST_STATE_UP;
ast_clear_flag(xferchan, AST_FLAGS_ALL);
ast_channel_clear_softhangup(xferchan, AST_SOFTHANGUP_ALL);
if ((f = ast_read(xferchan))) {
ast_frfree(f);
f = NULL;
ast_pbx_start(xferchan);
} else {
if (ast_do_masquerade(xferchan) || ast_pbx_start(xferchan)) {
/* Failed to do masquerade or could not start PBX. */
ast_hangup(xferchan);
}
}
@@ -2115,6 +2129,7 @@ static int builtin_blindtransfer(struct ast_channel *chan, struct ast_channel *p
char xferto[256] = "";
int res;
ast_debug(1, "Executing Blind Transfer %s, %s (sense=%d) \n", chan->name, peer->name, sense);
set_peers(&transferer, &transferee, peer, chan, sense);
transferer_real_context = real_ctx(transferer, transferee);
@@ -2157,10 +2172,12 @@ static int builtin_blindtransfer(struct ast_channel *chan, struct ast_channel *p
}
/* Do blind transfer. */
ast_verb(3, "Blind transferring %s to '%s' (context %s) priority 1\n",
transferee->name, xferto, transferer_real_context);
ast_cel_report_event(transferer, AST_CEL_BLINDTRANSFER, NULL, xferto, transferee);
pbx_builtin_setvar_helper(transferer, "BLINDTRANSFER", transferee->name);
pbx_builtin_setvar_helper(transferee, "BLINDTRANSFER", transferer->name);
res = finishup(transferee);
finishup(transferee);
if (!transferer->cdr) { /* this code should never get called (in a perfect world) */
transferer->cdr = ast_cdr_alloc();
if (transferer->cdr) {
@@ -2187,21 +2204,24 @@ static int builtin_blindtransfer(struct ast_channel *chan, struct ast_channel *p
}
if (!transferee->pbx) {
/* Doh! Use our handy async_goto functions */
ast_verb(3, "Transferring %s to '%s' (context %s) priority 1\n",
transferee->name, xferto, transferer_real_context);
ast_debug(1, "About to ast_async_goto %s.\n", transferee->name);
if (ast_async_goto(transferee, transferer_real_context, xferto, 1)) {
ast_log(LOG_WARNING, "Async goto failed :-(\n");
}
/* The transferee is masqueraded and the original bridged channels can be hungup. */
res = -1;
} else {
/* Set the channel's new extension, since it exists, using transferer context */
/* Set the transferee's new extension, since it exists, using transferer context */
ast_debug(1, "About to explicit goto %s, it has a PBX.\n", transferee->name);
ast_set_flag(transferee, AST_FLAG_BRIDGE_HANGUP_DONT); /* don't let the after-bridge code run the h-exten */
ast_debug(1,
"ABOUT TO AST_ASYNC_GOTO, have a pbx... set HANGUP_DONT on chan=%s\n",
transferee->name);
if (ast_channel_connected_line_macro(transferee, transferer, &transferer->connected, 1, 0)) {
ast_channel_update_connected_line(transferer, &transferer->connected, NULL);
}
set_c_e_p(transferee, transferer_real_context, xferto, 0);
/*
* Break the bridge. The transferee needs to resume executing
* dialplan at the xferto location.
*/
res = AST_FEATURE_RETURN_SUCCESSBREAK;
}
check_goto_on_transfer(transferer);
return res;