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Update to the janitor project for making sure to be thread-safe when

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retrieving the value of a channel variable. This covers app_queue.

This commit also incorporates a logical change. Previously, if MixMonitor
is to be used to record the call, all the arguments were parsed first. Then
the MixMonitor app would be located. Now the order of these operations has
been swapped. Now the app is located first so that we only go through the
work of parsing the arguments if the app was found.

(closes issue #12742)
Reported by: snuffy
Patches:
      bug_12742.diff uploaded by snuffy (license 35)



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@118783 65c4cc65-6c06-0410-ace0-fbb531ad65f3
1.6.1
Mark Michelson 17 years ago
parent 1bd776b0ea
commit dd7e1255ac
1 changed files with 71 additions and 61 deletions
Show Stats Download Patch File Download Diff File

132
apps/app_queue.c
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@ -3438,11 +3438,15 @@ static int try_calling(struct queue_ent *qe, const char *options, char *announce
set_queue_variables(qe);
ao2_unlock(qe->parent);
ast_channel_lock(qe->chan);
if ((monitorfilename = pbx_builtin_getvar_helper(qe->chan, "MONITOR_FILENAME"))) {
monitorfilename = ast_strdupa(monitorfilename);
}
ast_channel_unlock(qe->chan);
/* Begin Monitoring */
if (qe->parent->monfmt && *qe->parent->monfmt) {
if (!qe->parent->montype) {
ast_debug(1, "Starting Monitor as requested.\n");
monitorfilename = pbx_builtin_getvar_helper(qe->chan, "MONITOR_FILENAME");
if (pbx_builtin_getvar_helper(qe->chan, "MONITOR_EXEC") || pbx_builtin_getvar_helper(qe->chan, "MONITOR_EXEC_ARGS"))
which = qe->chan;
else
@ -3457,75 +3461,79 @@ static int try_calling(struct queue_ent *qe, const char *options, char *announce
ast_monitor_start(which, qe->parent->monfmt, tmpid, 1, X_REC_IN | X_REC_OUT);
}
} else {
ast_debug(1, "Starting MixMonitor as requested.\n");
monitorfilename = pbx_builtin_getvar_helper(qe->chan, "MONITOR_FILENAME");
if (!monitorfilename) {
if (qe->chan->cdr)
ast_copy_string(tmpid, qe->chan->cdr->uniqueid, sizeof(tmpid));
else
snprintf(tmpid, sizeof(tmpid), "chan-%lx", ast_random());
} else {
const char *m = monitorfilename;
for (p = tmpid2; p < tmpid2 + sizeof(tmpid2) - 1; p++, m++) {
switch (*m) {
case '^':
if (*(m + 1) == '{')
*p = '$';
break;
case ',':
*p++ = '\\';
/* Fall through */
default:
*p = *m;
mixmonapp = pbx_findapp("MixMonitor");
if (mixmonapp) {
ast_debug(1, "Starting MixMonitor as requested.\n");
if (!monitorfilename) {
if (qe->chan->cdr)
ast_copy_string(tmpid, qe->chan->cdr->uniqueid, sizeof(tmpid));
else
snprintf(tmpid, sizeof(tmpid), "chan-%lx", ast_random());
} else {
const char *m = monitorfilename;
for (p = tmpid2; p < tmpid2 + sizeof(tmpid2) - 1; p++, m++) {
switch (*m) {
case '^':
if (*(m + 1) == '{')
*p = '$';
break;
case ',':
*p++ = '\\';
/* Fall through */
default:
*p = *m;
}
if (*m == '\0')
break;
}
if (*m == '\0')
break;
}
if (p == tmpid2 + sizeof(tmpid2))
tmpid2[sizeof(tmpid2) - 1] = '\0';
if (p == tmpid2 + sizeof(tmpid2))
tmpid2[sizeof(tmpid2) - 1] = '\0';
pbx_substitute_variables_helper(qe->chan, tmpid2, tmpid, sizeof(tmpid) - 1);
}
monitor_exec = pbx_builtin_getvar_helper(qe->chan, "MONITOR_EXEC");
monitor_options = pbx_builtin_getvar_helper(qe->chan, "MONITOR_OPTIONS");
pbx_substitute_variables_helper(qe->chan, tmpid2, tmpid, sizeof(tmpid) - 1);
}
if (monitor_exec) {
const char *m = monitor_exec;
for (p = meid2; p < meid2 + sizeof(meid2) - 1; p++, m++) {
switch (*m) {
case '^':
if (*(m + 1) == '{')
*p = '$';
break;
case ',':
*p++ = '\\';
/* Fall through */
default:
*p = *m;
}
if (*m == '\0')
break;
ast_channel_lock(qe->chan);
if ((monitor_exec = pbx_builtin_getvar_helper(qe->chan, "MONITOR_EXEC"))) {
monitor_exec = ast_strdupa(monitor_exec);
}
if ((monitor_options = pbx_builtin_getvar_helper(qe->chan, "MONITOR_OPTIONS"))) {
monitor_options = ast_strdupa(monitor_options);
} else {
monitor_options = "";
}
if (p == meid2 + sizeof(meid2))
meid2[sizeof(meid2) - 1] = '\0';
ast_channel_unlock(qe->chan);
if (monitor_exec) {
const char *m = monitor_exec;
for (p = meid2; p < meid2 + sizeof(meid2) - 1; p++, m++) {
switch (*m) {
case '^':
if (*(m + 1) == '{')
*p = '$';
break;
case ',':
*p++ = '\\';
/* Fall through */
default:
*p = *m;
}
if (*m == '\0')
break;
}
if (p == meid2 + sizeof(meid2))
meid2[sizeof(meid2) - 1] = '\0';
pbx_substitute_variables_helper(qe->chan, meid2, meid, sizeof(meid) - 1);
}
pbx_substitute_variables_helper(qe->chan, meid2, meid, sizeof(meid) - 1);
}
snprintf(tmpid2, sizeof(tmpid2), "%s.%s", tmpid, qe->parent->monfmt);
snprintf(tmpid2, sizeof(tmpid2), "%s.%s", tmpid, qe->parent->monfmt);
mixmonapp = pbx_findapp("MixMonitor");
if (!monitor_options)
monitor_options = "";
if (mixmonapp) {
if (!ast_strlen_zero(monitor_exec))
snprintf(mixmonargs, sizeof(mixmonargs), "%s,b%s,%s", tmpid2, monitor_options, monitor_exec);
else
snprintf(mixmonargs, sizeof(mixmonargs), "%s,b%s", tmpid2, monitor_options);
ast_debug(1, "Arguments being passed to MixMonitor: %s\n", mixmonargs);
/* We purposely lock the CDR so that pbx_exec does not update the application data */
if (qe->chan->cdr)
@ -3534,9 +3542,9 @@ static int try_calling(struct queue_ent *qe, const char *options, char *announce
if (qe->chan->cdr)
ast_clear_flag(qe->chan->cdr, AST_CDR_FLAG_LOCKED);
} else
} else {
ast_log(LOG_WARNING, "Asked to run MixMonitor on this call, but cannot find the MixMonitor app!\n");
}
}
}
/* Drop out of the queue at this point, to prepare for next caller */
@ -4449,6 +4457,7 @@ static int queue_exec(struct ast_channel *chan, void *data)
qe.expire = 0;
/* Get the priority from the variable ${QUEUE_PRIO} */
ast_channel_lock(chan);
user_priority = pbx_builtin_getvar_helper(chan, "QUEUE_PRIO");
if (user_priority) {
if (sscanf(user_priority, "%d", &prio) == 1) {
@ -4488,6 +4497,7 @@ static int queue_exec(struct ast_channel *chan, void *data)
} else {
min_penalty = 0;
}
ast_channel_unlock(chan);
if (args.options && (strchr(args.options, 'r')))
ringing = 1;

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