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-rwxr-xr-xapps/app_dial.c290
1 files changed, 281 insertions, 9 deletions
diff --git a/apps/app_dial.c b/apps/app_dial.c
index 02ed8d344..6eef79497 100755
--- a/apps/app_dial.c
+++ b/apps/app_dial.c
@@ -18,6 +18,7 @@
#include <asterisk/options.h>
#include <asterisk/module.h>
#include <asterisk/translate.h>
+#include <asterisk/say.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
@@ -25,14 +26,31 @@
#include <stdlib.h>
#include <stdio.h>
#include <sys/time.h>
+#include <sys/signal.h>
#include <pthread.h>
-
-static char *tdesc = "Trivial Dialing Application";
+static char *tdesc = "Dialing/Parking Application";
static char *app = "Dial";
+static char *parkedcall = "ParkedCall";
+
+/* No more than 90 seconds parked before you do something with them */
+static int parkingtime = 90000;
+
+/* Context for which parking is made accessible */
+static char parking_con[AST_MAX_EXTENSION] = "default";
+
+/* Extension you type to park the call */
+static char parking_ext[AST_MAX_EXTENSION] = "700";
+
+/* First available extension for parking */
+static int parking_start = 701;
+
+/* Last available extension for parking */
+static int parking_stop = 750;
+
/* We define a customer "local user" structure because we
use it not only for keeping track of what is in use but
also for keeping track of who we're dialing. */
@@ -44,8 +62,164 @@ struct localuser {
struct localuser *next;
};
+struct parkeduser {
+ struct ast_channel *chan;
+ struct timeval start;
+ int parkingnum;
+ /* Where to go if our parking time expires */
+ char context[AST_MAX_EXTENSION];
+ char exten[AST_MAX_EXTENSION];
+ int priority;
+ struct parkeduser *next;
+};
+
+static struct parkeduser *parkinglot;
+
+static pthread_mutex_t parking_lock = PTHREAD_MUTEX_INITIALIZER;
+
+static pthread_t parking_thread;
+
LOCAL_USER_DECL;
+static int bridge_call(struct ast_channel *chan, struct ast_channel *peer, int allowredirect);
+
+
+static int park_call(struct ast_channel *chan, struct ast_channel *peer)
+{
+ /* We put the user in the parking list, then wake up the parking thread to be sure it looks
+ after these channels too */
+ struct parkeduser *pu, *cur;
+ int x;
+ pu = malloc(sizeof(struct parkeduser));
+ if (pu) {
+ pthread_mutex_lock(&parking_lock);
+ for (x=parking_start;x<=parking_stop;x++) {
+ cur = parkinglot;
+ while(cur) {
+ if (cur->parkingnum == x)
+ break;
+ cur = cur->next;
+ }
+ if (!cur)
+ break;
+ }
+ if (x <= parking_stop) {
+ pu->chan = chan;
+ gettimeofday(&pu->start, NULL);
+ pu->parkingnum = x;
+ /* Remember what had been dialed, so that if the parking
+ expires, we try to come back to the same place */
+ strncpy(pu->context, chan->context, sizeof(pu->context));
+ strncpy(pu->exten, chan->exten, sizeof(pu->exten));
+ pu->priority = chan->priority;
+ pu->next = parkinglot;
+ parkinglot = pu;
+ pthread_mutex_unlock(&parking_lock);
+ /* Wake up the (presumably select()ing) thread */
+ pthread_kill(parking_thread, SIGURG);
+ if (option_verbose > 1)
+ ast_verbose(VERBOSE_PREFIX_2 "Parked %s on %d\n", pu->chan->name, pu->parkingnum);
+ ast_say_digits(peer, pu->parkingnum, peer->language);
+ return 0;
+ } else {
+ ast_log(LOG_WARNING, "No more parking spaces\n");
+ free(pu);
+ pthread_mutex_unlock(&parking_lock);
+ return -1;
+ }
+ } else {
+ ast_log(LOG_WARNING, "Out of memory\n");
+ return -1;
+ }
+ return 0;
+}
+
+static void *do_parking_thread(void *ignore)
+{
+ int ms, tms, max;
+ struct parkeduser *pu, *pl, *pt = NULL;
+ struct timeval tv;
+ struct ast_frame *f;
+ fd_set rfds, efds;
+ fd_set nrfds, nefds;
+ FD_ZERO(&rfds);
+ FD_ZERO(&efds);
+ for (;;) {
+ ms = -1;
+ max = -1;
+ pthread_mutex_lock(&parking_lock);
+ pl = NULL;
+ pu = parkinglot;
+ gettimeofday(&tv, NULL);
+ FD_ZERO(&nrfds);
+ FD_ZERO(&nefds);
+ while(pu) {
+ tms = (tv.tv_sec - pu->start.tv_sec) * 1000 + (tv.tv_usec - pu->start.tv_usec) / 1000;
+ if (tms > parkingtime) {
+ /* They've been waiting too long, send them back to where they came. Theoretically they
+ should have their original extensions and such, but we copy to be on the safe side */
+ strncpy(pu->chan->exten, pu->exten, sizeof(pu->chan->exten));
+ strncpy(pu->chan->context, pu->context, sizeof(pu->chan->context));
+ pu->chan->priority = pu->priority;
+ /* Start up the PBX, or hang them up */
+ if (ast_pbx_start(pu->chan)) {
+ ast_log(LOG_WARNING, "Unable to restart the PBX for user on '%s', hanging them up...\n", pu->chan->name);
+ ast_hangup(pu->chan);
+ }
+ /* And take them out of the parking lot */
+ if (pl)
+ pl->next = pu->next;
+ else
+ parkinglot = pu->next;
+ pt = pu;
+ pu = pu->next;
+ free(pt);
+ } else if (FD_ISSET(pu->chan->fd, &rfds) || FD_ISSET(pu->chan->fd, &efds)) {
+ /* See if they need servicing */
+ f = ast_read(pu->chan);
+ if (!f || ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_HANGUP))) {
+ /* There's a problem, hang them up*/
+ if (option_verbose > 1)
+ ast_verbose(VERBOSE_PREFIX_2 "%s got tired of being parked\n", pu->chan->name);
+ ast_hangup(pu->chan);
+ /* And take them out of the parking lot */
+ if (pl)
+ pl->next = pu->next;
+ else
+ parkinglot = pu->next;
+ pt = pu;
+ pu = pu->next;
+ free(pt);
+ } else {
+ /* XXX Maybe we could do something with packets, like dial "0" for operator or something XXX */
+ ast_frfree(f);
+ goto std; /* XXX Ick: jumping into an else statement??? XXX */
+ }
+ } else {
+ /* Keep this one for next one */
+std: FD_SET(pu->chan->fd, &nrfds);
+ FD_SET(pu->chan->fd, &nefds);
+ /* Keep track of our longest wait */
+ if ((tms < ms) || (ms < 0))
+ ms = tms;
+ if (pu->chan->fd > max)
+ max = pu->chan->fd;
+ pl = pu;
+ pu = pu->next;
+ }
+ }
+ pthread_mutex_unlock(&parking_lock);
+ rfds = nrfds;
+ efds = nefds;
+ tv.tv_sec = ms / 1000;
+ tv.tv_usec = (ms % 1000) * 1000;
+ /* Wait for something to happen */
+ select(max + 1, &rfds, NULL, &efds, (ms > -1) ? &tv : NULL);
+ pthread_testcancel();
+ }
+ return NULL; /* Never reached */
+}
+
static void hanguptree(struct localuser *outgoing, struct ast_channel *exception)
{
/* Hang up a tree of stuff */
@@ -222,15 +396,19 @@ static int bridge_call(struct ast_channel *chan, struct ast_channel *peer, int a
(f->subclass == AST_CONTROL_BUSY))))
return -1;
if ((f->frametype == AST_FRAME_VOICE) ||
- (f->frametype == AST_FRAME_DTMF)) {
- if ((f->frametype == AST_FRAME_DTMF) && (who == peer) && allowredirect) {
+ (f->frametype == AST_FRAME_DTMF) ||
+ (f->frametype == AST_FRAME_TEXT)) {
+ if ((f->frametype == AST_FRAME_DTMF) && (who == peer) && allowredirect &&
+ (f->subclass == '#')) {
if (f->subclass == '#') {
memset(newext, 0, sizeof(newext));
ptr = newext;
len = ast_pbx_longest_extension(chan->context) + 1;
+ if (len < ast_pbx_longest_extension("default") + 1)
+ len = ast_pbx_longest_extension("default") + 1;
/* Transfer */
- if ((res=ast_streamfile(peer, "pbx-transfer")))
+ if ((res=ast_streamfile(peer, "pbx-transfer", chan->language)))
break;
if ((res=ast_waitstream(peer, AST_DIGIT_ANY)) < 0)
break;
@@ -244,15 +422,35 @@ static int bridge_call(struct ast_channel *chan, struct ast_channel *peer, int a
res = ast_readstring(peer, ptr, len, 3000, 2000, "#");
if (res)
break;
- if (ast_exists_extension(chan, chan->context, newext, 1)) {
- /* Set the channel's new extension, since it exists */
+ if (!strcmp(newext, parking_ext)) {
+ if (!park_call(chan, peer)) {
+ /* We return non-zero, but tell the PBX not to hang the channel when
+ the thread dies -- We have to be careful now though. We are responsible for
+ hanging up the channel, else it will never be hung up! */
+ res=AST_PBX_KEEPALIVE;
+ break;
+ } else {
+ ast_log(LOG_WARNING, "Unable to park call %s\n", chan->name);
+ }
+ /* XXX Maybe we should have another message here instead of invalid extension XXX */
+ } else if (ast_exists_extension(chan, peer->context, newext, 1)) {
+ /* Set the channel's new extension, since it exists, using peer context */
strncpy(chan->exten, newext, sizeof(chan->exten));
+ strncpy(chan->context, peer->context, sizeof(chan->context));
+ chan->priority = 0;
+ ast_frfree(f);
+ res=0;
+ break;
+ } else if (ast_exists_extension(chan, "default", newext, 1)) {
+ /* Set the channel's new extension, since it exists, using peer context */
+ strncpy(chan->exten, newext, sizeof(chan->exten));
+ strncpy(chan->context, "default", sizeof(chan->context));
chan->priority = 0;
ast_frfree(f);
res=0;
break;
}
- res = ast_streamfile(peer, "pbx-invalid");
+ res = ast_streamfile(peer, "pbx-invalid", chan->language);
if (res)
break;
res = ast_waitstream(peer, AST_DIGIT_ANY);
@@ -280,6 +478,63 @@ static int bridge_call(struct ast_channel *chan, struct ast_channel *peer, int a
return res;
}
+static int park_exec(struct ast_channel *chan, void *data)
+{
+ int res=0;
+ struct localuser *u;
+ struct ast_channel *peer=NULL, *nchan;
+ struct parkeduser *pu, *pl=NULL;
+ int park;
+ if (!data) {
+ ast_log(LOG_WARNING, "Park requires an argument (extension number)\n");
+ return -1;
+ }
+ LOCAL_USER_ADD(u);
+ park = atoi((char *)data);
+ pthread_mutex_lock(&parking_lock);
+ pu = parkinglot;
+ while(pu) {
+ if (pu->parkingnum == park) {
+ if (pl)
+ pl->next = pu->next;
+ else
+ parkinglot = pu->next;
+ break;
+ }
+ pu = pu->next;
+ }
+ pthread_mutex_unlock(&parking_lock);
+ if (pu) {
+ peer = pu->chan;
+ free(pu);
+ }
+ if (peer) {
+ /* Build a translator if necessary */
+ if (peer->format & chan->format)
+ nchan = chan;
+ else
+ nchan = ast_translator_create(chan, peer->format, AST_DIRECTION_BOTH);
+ /* This runs sorta backwards, since we give the incoming channel control, as if it
+ were the person called. */
+ if (option_verbose > 2)
+ ast_verbose(VERBOSE_PREFIX_3 "Channel %s connected to parked call %d\n", chan->name, park);
+ res = bridge_call(peer, nchan, 1);
+ if (nchan != chan)
+ ast_translator_destroy(nchan);
+ /* Simulate the PBX hanging up */
+ if (res != AST_PBX_KEEPALIVE)
+ ast_hangup(peer);
+ return -1;
+ } else {
+ /* XXX Play a message XXX */
+ if (option_verbose > 2)
+ ast_verbose(VERBOSE_PREFIX_3 "Channel %s tried to talk to non-existant parked call %d\n", chan->name, park);
+ res = -1;
+ }
+ LOCAL_USER_REMOVE(u);
+ return res;
+}
+
static int dial_exec(struct ast_channel *chan, void *data)
{
int res=-1;
@@ -414,7 +669,24 @@ int unload_module(void)
int load_module(void)
{
- return ast_register_application(app, dial_exec);
+ int res;
+ int x;
+ struct ast_context *con;
+ char exten[AST_MAX_EXTENSION];
+ con = ast_context_find(parking_con);
+ if (!con) {
+ ast_log(LOG_ERROR, "Parking context '%s' does not exist\n", parking_con);
+ return -1;
+ }
+ for(x=parking_start; x<=parking_stop;x++) {
+ snprintf(exten, sizeof(exten), "%d", x);
+ ast_add_extension2(con, 1, exten, 1, parkedcall, strdup(exten), free);
+ }
+ pthread_create(&parking_thread, NULL, do_parking_thread, NULL);
+ res = ast_register_application(parkedcall, park_exec);
+ if (!res)
+ res = ast_register_application(app, dial_exec);
+ return res;
}
char *description(void)