static int bridgeadd_exec(struct ast_channel *chan, const char *data)
{
struct ast_channel *c_ref;
struct ast_bridge_features chan_features;
struct ast_bridge *bridge;
char *c_name;
/* Answer the channel if needed */
if (ast_channel_state(chan) != AST_STATE_UP) {
ast_answer(chan);
}
if (!(c_ref = ast_channel_get_by_name_prefix(data, strlen(data)))) {
ast_log(LOG_WARNING, "Channel %s not found\n", data);
return -1;
}
c_name = ast_strdupa(ast_channel_name(c_ref));
ast_channel_lock(c_ref);
bridge = ast_channel_get_bridge(c_ref);
ast_channel_unlock(c_ref);
ast_channel_unref(c_ref);
if (!bridge) {
ast_log(LOG_WARNING, "Channel %s is not in a bridge\n", c_name);
return -1;
}
ast_verb(3, "%s is joining %s in bridge %s\n", ast_channel_name(chan),
c_name, bridge->uniqueid);
if (ast_bridge_features_init(&chan_features)
|| ast_bridge_join(bridge, chan, NULL, &chan_features, NULL, 0)) {
ast_log(LOG_WARNING, "%s failed to join %s in bridge %s\n", ast_channel_name(chan),
c_name, bridge->uniqueid);
ast_bridge_features_cleanup(&chan_features);
ao2_cleanup(bridge);
return -1;
}
ast_bridge_features_cleanup(&chan_features);
ao2_cleanup(bridge);
return 0;
}
static int common_exec(struct ast_channel *chan, struct ast_flags *flags,
int volfactor, const int fd, struct spy_dtmf_options *user_options,
const char *mygroup, const char *myenforced, const char *spec, const char *exten,
const char *context, const char *mailbox, const char *name_context)
{
char nameprefix[AST_NAME_STRLEN];
char peer_name[AST_NAME_STRLEN + 5];
char exitcontext[AST_MAX_CONTEXT] = "";
signed char zero_volume = 0;
int waitms;
int res;
char *ptr;
int num;
int num_spyed_upon = 1;
struct ast_channel_iterator *iter = NULL;
if (ast_test_flag(flags, OPTION_EXIT)) {
const char *c;
ast_channel_lock(chan);
if ((c = pbx_builtin_getvar_helper(chan, "SPY_EXIT_CONTEXT"))) {
ast_copy_string(exitcontext, c, sizeof(exitcontext));
} else if (!ast_strlen_zero(chan->macrocontext)) {
ast_copy_string(exitcontext, chan->macrocontext, sizeof(exitcontext));
} else {
ast_copy_string(exitcontext, chan->context, sizeof(exitcontext));
}
ast_channel_unlock(chan);
}
if (chan->_state != AST_STATE_UP)
ast_answer(chan);
ast_set_flag(chan, AST_FLAG_SPYING); /* so nobody can spy on us while we are spying */
waitms = 100;
for (;;) {
struct ast_autochan *autochan = NULL, *next_autochan = NULL;
struct ast_channel *prev = NULL;
if (!ast_test_flag(flags, OPTION_QUIET) && num_spyed_upon) {
res = ast_streamfile(chan, "beep", chan->language);
if (!res)
res = ast_waitstream(chan, "");
else if (res < 0) {
ast_clear_flag(chan, AST_FLAG_SPYING);
break;
}
if (!ast_strlen_zero(exitcontext)) {
char tmp[2];
tmp[0] = res;
tmp[1] = '\0';
if (!ast_goto_if_exists(chan, exitcontext, tmp, 1))
goto exit;
else
ast_debug(2, "Exit by single digit did not work in chanspy. Extension %s does not exist in context %s\n", tmp, exitcontext);
}
}
/* Set up the iterator we'll be using during this call */
if (!ast_strlen_zero(spec)) {
iter = ast_channel_iterator_by_name_new(spec, strlen(spec));
} else if (!ast_strlen_zero(exten)) {
iter = ast_channel_iterator_by_exten_new(exten, context);
} else {
iter = ast_channel_iterator_all_new();
}
if (!iter) {
return -1;
}
res = ast_waitfordigit(chan, waitms);
if (res < 0) {
ast_clear_flag(chan, AST_FLAG_SPYING);
break;
}
if (!ast_strlen_zero(exitcontext)) {
char tmp[2];
tmp[0] = res;
tmp[1] = '\0';
if (!ast_goto_if_exists(chan, exitcontext, tmp, 1))
goto exit;
else
ast_debug(2, "Exit by single digit did not work in chanspy. Extension %s does not exist in context %s\n", tmp, exitcontext);
}
/* reset for the next loop around, unless overridden later */
waitms = 100;
num_spyed_upon = 0;
for (autochan = next_channel(iter, autochan, chan);
autochan;
prev = autochan->chan, ast_autochan_destroy(autochan),
autochan = next_autochan ? next_autochan :
next_channel(iter, autochan, chan), next_autochan = NULL) {
int igrp = !mygroup;
int ienf = !myenforced;
char *s;
if (autochan->chan == prev) {
ast_autochan_destroy(autochan);
break;
}
if (ast_check_hangup(chan)) {
ast_autochan_destroy(autochan);
break;
}
if (ast_test_flag(flags, OPTION_BRIDGED) && !ast_bridged_channel(autochan->chan)) {
continue;
}
if (ast_check_hangup(autochan->chan) || ast_test_flag(autochan->chan, AST_FLAG_SPYING)) {
continue;
}
if (mygroup) {
int num_groups = 0;
int num_mygroups = 0;
char dup_group[512];
char dup_mygroup[512];
char *groups[NUM_SPYGROUPS];
char *mygroups[NUM_SPYGROUPS];
const char *group = NULL;
int x;
int y;
ast_copy_string(dup_mygroup, mygroup, sizeof(dup_mygroup));
num_mygroups = ast_app_separate_args(dup_mygroup, ':', mygroups,
ARRAY_LEN(mygroups));
/* Before dahdi scan was part of chanspy, it would use the "GROUP" variable
* rather than "SPYGROUP", this check is done to preserve expected behavior */
if (ast_test_flag(flags, OPTION_DAHDI_SCAN)) {
group = pbx_builtin_getvar_helper(autochan->chan, "GROUP");
} else {
group = pbx_builtin_getvar_helper(autochan->chan, "SPYGROUP");
}
if (!ast_strlen_zero(group)) {
ast_copy_string(dup_group, group, sizeof(dup_group));
num_groups = ast_app_separate_args(dup_group, ':', groups,
ARRAY_LEN(groups));
}
for (y = 0; y < num_mygroups; y++) {
for (x = 0; x < num_groups; x++) {
if (!strcmp(mygroups[y], groups[x])) {
igrp = 1;
break;
}
}
}
}
if (!igrp) {
continue;
}
if (myenforced) {
char ext[AST_CHANNEL_NAME + 3];
char buffer[512];
char *end;
snprintf(buffer, sizeof(buffer) - 1, ":%s:", myenforced);
ast_copy_string(ext + 1, autochan->chan->name, sizeof(ext) - 1);
if ((end = strchr(ext, '-'))) {
*end++ = ':';
*end = '\0';
}
ext[0] = ':';
if (strcasestr(buffer, ext)) {
ienf = 1;
}
}
if (!ienf) {
continue;
}
strcpy(peer_name, "spy-");
strncat(peer_name, autochan->chan->name, AST_NAME_STRLEN - 4 - 1);
ptr = strchr(peer_name, '/');
*ptr++ = '\0';
ptr = strsep(&ptr, "-");
for (s = peer_name; s < ptr; s++)
*s = tolower(*s);
if (!ast_test_flag(flags, OPTION_QUIET)) {
if (ast_test_flag(flags, OPTION_NAME)) {
const char *local_context = S_OR(name_context, "default");
const char *local_mailbox = S_OR(mailbox, ptr);
res = ast_app_sayname(chan, local_mailbox, local_context);
}
if (!ast_test_flag(flags, OPTION_NAME) || res < 0) {
if (!ast_test_flag(flags, OPTION_NOTECH)) {
if (ast_fileexists(peer_name, NULL, NULL) > 0) {
res = ast_streamfile(chan, peer_name, chan->language);
if (!res) {
res = ast_waitstream(chan, "");
}
if (res) {
ast_autochan_destroy(autochan);
break;
}
} else {
res = ast_say_character_str(chan, peer_name, "", chan->language);
}
}
if ((num = atoi(ptr)))
ast_say_digits(chan, atoi(ptr), "", chan->language);
}
}
res = channel_spy(chan, autochan, &volfactor, fd, user_options, flags, exitcontext);
num_spyed_upon++;
if (res == -1) {
ast_autochan_destroy(autochan);
goto exit;
} else if (res == -2) {
res = 0;
ast_autochan_destroy(autochan);
goto exit;
} else if (res > 1 && spec) {
struct ast_channel *next;
snprintf(nameprefix, AST_NAME_STRLEN, "%s/%d", spec, res);
if ((next = ast_channel_get_by_name_prefix(nameprefix, strlen(nameprefix)))) {
next_autochan = ast_autochan_setup(next);
next = ast_channel_unref(next);
} else {
/* stay on this channel, if it is still valid */
if (!ast_check_hangup(autochan->chan)) {
next_autochan = ast_autochan_setup(autochan->chan);
} else {
/* the channel is gone */
next_autochan = NULL;
}
}
} else if (res == 0 && ast_test_flag(flags, OPTION_EXITONHANGUP)) {
goto exit;
}
}
iter = ast_channel_iterator_destroy(iter);
if (res == -1 || ast_check_hangup(chan))
break;
if (ast_test_flag(flags, OPTION_STOP) && !next_autochan) {
break;
}
}
exit:
ast_clear_flag(chan, AST_FLAG_SPYING);
ast_channel_setoption(chan, AST_OPTION_TXGAIN, &zero_volume, sizeof(zero_volume), 0);
return res;
}
/*!
* \brief Bridge channels together
* \param s
* \param m
*
* Make sure valid channels were specified,
* send errors if any of the channels could not be found/locked, answer channels if needed,
* create the placeholder channels and grab the other channels
* make the channels compatible, send error if we fail doing so
* setup the bridge thread object and start the bridge.
*
* \retval 0
*/
static int action_bridge(struct mansession *s, const struct message *m)
{
const char *channela = astman_get_header(m, "Channel1");
const char *channelb = astman_get_header(m, "Channel2");
enum play_tone_action playtone = parse_playtone(astman_get_header(m, "Tone"));
RAII_VAR(struct ast_channel *, chana, NULL, ao2_cleanup);
RAII_VAR(struct ast_channel *, chanb, NULL, ao2_cleanup);
const char *chana_exten;
const char *chana_context;
int chana_priority;
const char *chanb_exten;
const char *chanb_context;
int chanb_priority;
struct ast_bridge *bridge;
char buf[256];
RAII_VAR(struct ast_features_xfer_config *, xfer_cfg_a, NULL, ao2_cleanup);
RAII_VAR(struct ast_features_xfer_config *, xfer_cfg_b, NULL, ao2_cleanup);
/* make sure valid channels were specified */
if (ast_strlen_zero(channela) || ast_strlen_zero(channelb)) {
astman_send_error(s, m, "Missing channel parameter in request");
return 0;
}
ast_debug(1, "Performing Bridge action on %s and %s\n", channela, channelb);
/* Start with chana */
chana = ast_channel_get_by_name_prefix(channela, strlen(channela));
if (!chana) {
snprintf(buf, sizeof(buf), "Channel1 does not exist: %s", channela);
astman_send_error(s, m, buf);
return 0;
}
ast_channel_lock(chana);
xfer_cfg_a = ast_get_chan_features_xfer_config(chana);
chana_exten = ast_strdupa(ast_channel_exten(chana));
chana_context = ast_strdupa(ast_channel_context(chana));
chana_priority = ast_channel_priority(chana);
if (!ast_test_flag(ast_channel_flags(chana), AST_FLAG_IN_AUTOLOOP)) {
chana_priority++;
}
ast_channel_unlock(chana);
chanb = ast_channel_get_by_name_prefix(channelb, strlen(channelb));
if (!chanb) {
snprintf(buf, sizeof(buf), "Channel2 does not exist: %s", channelb);
astman_send_error(s, m, buf);
return 0;
}
ast_channel_lock(chanb);
xfer_cfg_b = ast_get_chan_features_xfer_config(chanb);
chanb_exten = ast_strdupa(ast_channel_exten(chanb));
chanb_context = ast_strdupa(ast_channel_context(chanb));
chanb_priority = ast_channel_priority(chanb);
if (!ast_test_flag(ast_channel_flags(chanb), AST_FLAG_IN_AUTOLOOP)) {
chanb_priority++;
}
ast_channel_unlock(chanb);
bridge = ast_bridge_basic_new();
if (!bridge) {
astman_send_error(s, m, "Unable to create bridge\n");
return 0;
}
ast_bridge_set_after_go_on(chana, chana_context, chana_exten, chana_priority, NULL);
if (ast_bridge_add_channel(bridge, chana, NULL, playtone & PLAYTONE_CHANNEL1, xfer_cfg_a ? xfer_cfg_a->xfersound : NULL)) {
snprintf(buf, sizeof(buf), "Unable to add Channel1 to bridge: %s", ast_channel_name(chana));
astman_send_error(s, m, buf);
ast_bridge_destroy(bridge, 0);
return 0;
}
ast_bridge_set_after_go_on(chanb, chanb_context, chanb_exten, chanb_priority, NULL);
if (ast_bridge_add_channel(bridge, chanb, NULL, playtone & PLAYTONE_CHANNEL2, xfer_cfg_b ? xfer_cfg_b->xfersound : NULL)) {
snprintf(buf, sizeof(buf), "Unable to add Channel2 to bridge: %s", ast_channel_name(chanb));
astman_send_error(s, m, buf);
ast_bridge_destroy(bridge, 0);
return 0;
}
astman_send_ack(s, m, "Channels have been bridged");
ao2_cleanup(bridge);
return 0;
}
