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;
}
/* play name of mailbox owner.
* returns: -1 for bad or missing extension
* '1' for selected entry from directory
* '*' for skipped entry from directory
*/
static int play_mailbox_owner(struct ast_channel *chan, char *context,
char *dialcontext, char *ext, char *name, int readext,
int fromappvm)
{
int res = 0;
int loop;
char fn[256];
/* Check for the VoiceMail2 greeting first */
snprintf(fn, sizeof(fn), "%s/voicemail/%s/%s/greet",
ast_config_AST_SPOOL_DIR, context, ext);
#ifdef ODBC_STORAGE
retrieve_file(fn);
#endif
if (ast_fileexists(fn, NULL, chan->language) <= 0) {
/* no file, check for an old-style Voicemail greeting */
snprintf(fn, sizeof(fn), "%s/vm/%s/greet",
ast_config_AST_SPOOL_DIR, ext);
}
#ifdef ODBC_STORAGE
retrieve_file(fn);
#endif
if (ast_fileexists(fn, NULL, chan->language) > 0) {
res = ast_stream_and_wait(chan, fn, chan->language, AST_DIGIT_ANY);
ast_stopstream(chan);
/* If Option 'e' was specified, also read the extension number with the name */
if (readext) {
ast_stream_and_wait(chan, "vm-extension", chan->language, AST_DIGIT_ANY);
res = ast_say_character_str(chan, ext, AST_DIGIT_ANY, chan->language);
}
} else {
res = ast_say_character_str(chan, S_OR(name, ext), AST_DIGIT_ANY, chan->language);
if (!ast_strlen_zero(name) && readext) {
ast_stream_and_wait(chan, "vm-extension", chan->language, AST_DIGIT_ANY);
res = ast_say_character_str(chan, ext, AST_DIGIT_ANY, chan->language);
}
}
#ifdef ODBC_STORAGE
ast_filedelete(fn, NULL);
#endif
for (loop = 3 ; loop > 0; loop--) {
if (!res)
res = ast_stream_and_wait(chan, "dir-instr", chan->language, AST_DIGIT_ANY);
if (!res)
res = ast_waitfordigit(chan, 3000);
ast_stopstream(chan);
if (res < 0) /* User hungup, so jump out now */
break;
if (res == '1') { /* Name selected */
if (fromappvm) {
/* We still want to set the exten though */
ast_copy_string(chan->exten, ext, sizeof(chan->exten));
} else {
if (ast_goto_if_exists(chan, dialcontext, ext, 1)) {
ast_log(LOG_WARNING,
"Can't find extension '%s' in context '%s'. "
"Did you pass the wrong context to Directory?\n",
ext, dialcontext);
res = -1;
}
}
break;
}
if (res == '*') /* Skip to next match in list */
break;
/* Not '1', or '*', so decrement number of tries */
res = 0;
}
return(res);
}
/* play name of mailbox owner.
* returns: -1 for bad or missing extension
* '1' for selected entry from directory
* '*' for skipped entry from directory
*/
static int play_mailbox_owner(struct ast_channel *chan, char *context, char *dialcontext, char *ext, char *name, int fromappvm) {
int res = 0;
int loop = 3;
char fn[256];
char fn2[256];
/* Check for the VoiceMail2 greeting first */
snprintf(fn, sizeof(fn), "%s/voicemail/%s/%s/greet",
(char *)ast_config_AST_SPOOL_DIR, context, ext);
#ifdef USE_ODBC_STORAGE
retrieve_file(fn);
#endif
/* Otherwise, check for an old-style Voicemail greeting */
snprintf(fn2, sizeof(fn2), "%s/vm/%s/greet",
(char *)ast_config_AST_SPOOL_DIR, ext);
#ifdef USE_ODBC_STORAGE
retrieve_file(fn2);
#endif
if (ast_fileexists(fn, NULL, chan->language) > 0) {
res = ast_streamfile(chan, fn, chan->language);
if (!res) {
res = ast_waitstream(chan, AST_DIGIT_ANY);
}
ast_stopstream(chan);
} else if (ast_fileexists(fn2, NULL, chan->language) > 0) {
res = ast_streamfile(chan, fn2, chan->language);
if (!res) {
res = ast_waitstream(chan, AST_DIGIT_ANY);
}
ast_stopstream(chan);
} else {
res = ast_say_character_str(chan, !ast_strlen_zero(name) ? name : ext,
AST_DIGIT_ANY, chan->language);
}
#ifdef USE_ODBC_STORAGE
ast_filedelete(fn, NULL);
ast_filedelete(fn2, NULL);
#endif
while (loop) {
if (!res) {
res = ast_streamfile(chan, "dir-instr", chan->language);
}
if (!res) {
res = ast_waitstream(chan, AST_DIGIT_ANY);
}
if (!res) {
res = ast_waitfordigit(chan, 3000);
}
ast_stopstream(chan);
if (res > -1) {
switch (res) {
case '1':
/* Name selected */
loop = 0;
if (fromappvm) {
/* We still want to set the exten */
ast_copy_string(chan->exten, ext, sizeof(chan->exten));
} else {
if (ast_goto_if_exists(chan, dialcontext, ext, 1)) {
ast_log(LOG_WARNING,
"Can't find extension '%s' in context '%s'. "
"Did you pass the wrong context to Directory?\n",
ext, dialcontext);
res = -1;
}
}
break;
case '*':
/* Skip to next match in list */
loop = 0;
break;
default:
/* Not '1', or '*', so decrement number of tries */
res = 0;
loop--;
break;
} /* end switch */
} /* end if */
else {
/* User hungup, so jump out now */
loop = 0;
}
} /* end while */
return(res);
}
static int common_exec(struct ast_channel *chan, const struct ast_flags *flags,
int volfactor, const int fd, const char *mygroup, const char *myenforced,
const char *spec, const char *exten, const char *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 chanspy_ds chanspy_ds;
if (ast_test_flag(flags, OPTION_EXIT)) {
const char *c;
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_mutex_init(&chanspy_ds.lock);
snprintf(chanspy_ds.unique_id, sizeof(chanspy_ds.unique_id), "%d", ast_atomic_fetchadd_int(&next_unique_id_to_use, +1));
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 chanspy_ds *peer_chanspy_ds = NULL, *next_chanspy_ds = NULL;
struct ast_channel *prev = NULL, *peer = 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);
}
}
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 (peer_chanspy_ds = next_channel(chan, prev, spec, exten, context, &chanspy_ds);
peer_chanspy_ds;
chanspy_ds_free(peer_chanspy_ds), prev = peer,
peer_chanspy_ds = next_chanspy_ds ? next_chanspy_ds :
next_channel(chan, prev, spec, exten, context, &chanspy_ds), next_chanspy_ds = NULL) {
const char *group;
int igrp = !mygroup;
char *groups[25];
int num_groups = 0;
char dup_group[512];
int x;
char *s;
char *buffer;
char *end;
char *ext;
char *form_enforced;
int ienf = !myenforced;
peer = peer_chanspy_ds->chan;
ast_mutex_unlock(&peer_chanspy_ds->lock);
if (peer == prev) {
ast_channel_unlock(peer);
chanspy_ds_free(peer_chanspy_ds);
break;
}
if (ast_check_hangup(chan)) {
ast_channel_unlock(peer);
chanspy_ds_free(peer_chanspy_ds);
break;
}
if (ast_test_flag(flags, OPTION_BRIDGED) && !ast_bridged_channel(peer)) {
ast_channel_unlock(peer);
continue;
}
if (ast_check_hangup(peer) || ast_test_flag(peer, AST_FLAG_SPYING)) {
ast_channel_unlock(peer);
continue;
}
if (mygroup) {
if ((group = pbx_builtin_getvar_helper(peer, "SPYGROUP"))) {
ast_copy_string(dup_group, group, sizeof(dup_group));
num_groups = ast_app_separate_args(dup_group, ':', groups,
ARRAY_LEN(groups));
}
for (x = 0; x < num_groups; x++) {
if (!strcmp(mygroup, groups[x])) {
igrp = 1;
break;
}
}
}
if (!igrp) {
ast_channel_unlock(peer);
continue;
}
if (myenforced) {
/* We don't need to allocate more space than just the
length of (peer->name) for ext as we will cut the
channel name's ending before copying into ext */
ext = alloca(strlen(peer->name));
form_enforced = alloca(strlen(myenforced) + 3);
strcpy(form_enforced, ":");
strcat(form_enforced, myenforced);
strcat(form_enforced, ":");
buffer = ast_strdupa(peer->name);
if ((end = strchr(buffer, '-'))) {
*end++ = ':';
*end = '\0';
}
strcpy(ext, ":");
strcat(ext, buffer);
if (strcasestr(form_enforced, ext))
ienf = 1;
}
if (!ienf)
continue;
strcpy(peer_name, "spy-");
strncat(peer_name, peer->name, AST_NAME_STRLEN - 4 - 1);
ptr = strchr(peer_name, '/');
*ptr++ = '\0';
for (s = peer_name; s < ptr; s++)
*s = tolower(*s);
/* We have to unlock the peer channel here to avoid a deadlock.
* So, when we need to dereference it again, we have to lock the
* datastore and get the pointer from there to see if the channel
* is still valid. */
ast_channel_unlock(peer);
if (!ast_test_flag(flags, OPTION_QUIET)) {
if (ast_fileexists(peer_name, NULL, NULL) != -1) {
res = ast_streamfile(chan, peer_name, chan->language);
if (!res)
res = ast_waitstream(chan, "");
if (res) {
chanspy_ds_free(peer_chanspy_ds);
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, peer_chanspy_ds, &volfactor, fd, flags, exitcontext);
num_spyed_upon++;
if (res == -1) {
chanspy_ds_free(peer_chanspy_ds);
goto exit;
} else if (res == -2) {
res = 0;
chanspy_ds_free(peer_chanspy_ds);
goto exit;
} else if (res > 1 && spec) {
struct ast_channel *next;
snprintf(nameprefix, AST_NAME_STRLEN, "%s/%d", spec, res);
if ((next = ast_get_channel_by_name_prefix_locked(nameprefix, strlen(nameprefix)))) {
peer_chanspy_ds = chanspy_ds_free(peer_chanspy_ds);
next_chanspy_ds = setup_chanspy_ds(next, &chanspy_ds);
} else {
/* stay on this channel, if it is still valid */
ast_mutex_lock(&peer_chanspy_ds->lock);
if (peer_chanspy_ds->chan) {
ast_channel_lock(peer_chanspy_ds->chan);
next_chanspy_ds = peer_chanspy_ds;
peer_chanspy_ds = NULL;
} else {
/* the channel is gone */
ast_mutex_unlock(&peer_chanspy_ds->lock);
next_chanspy_ds = NULL;
}
}
peer = NULL;
}
}
if (res == -1 || ast_check_hangup(chan))
break;
}
exit:
ast_clear_flag(chan, AST_FLAG_SPYING);
ast_channel_setoption(chan, AST_OPTION_TXGAIN, &zero_volume, sizeof(zero_volume), 0);
ast_mutex_lock(&chanspy_ds.lock);
ast_mutex_unlock(&chanspy_ds.lock);
ast_mutex_destroy(&chanspy_ds.lock);
return res;
}
static int chanspy_exec(struct ast_channel *chan, void *data)
{
struct localuser *u;
struct ast_channel *peer=NULL, *prev=NULL;
char name[AST_NAME_STRLEN],
peer_name[AST_NAME_STRLEN + 5],
*args,
*ptr = NULL,
*options = NULL,
*spec = NULL,
*argv[5],
*mygroup = NULL,
*recbase = NULL;
int res = -1,
volfactor = 0,
silent = 0,
argc = 0,
bronly = 0,
chosen = 0,
count=0,
waitms = 100,
num = 0,
oldrf = 0,
oldwf = 0,
fd = 0;
struct ast_flags flags;
signed char zero_volume = 0;
if (!(args = ast_strdupa((char *)data))) {
ast_log(LOG_ERROR, "Out of memory!\n");
return -1;
}
LOCAL_USER_ADD(u);
oldrf = chan->readformat;
oldwf = chan->writeformat;
if (ast_set_read_format(chan, AST_FORMAT_SLINEAR) < 0) {
ast_log(LOG_ERROR, "Could Not Set Read Format.\n");
LOCAL_USER_REMOVE(u);
return -1;
}
if (ast_set_write_format(chan, AST_FORMAT_SLINEAR) < 0) {
ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
LOCAL_USER_REMOVE(u);
return -1;
}
ast_answer(chan);
ast_set_flag(chan, AST_FLAG_SPYING); /* so nobody can spy on us while we are spying */
if ((argc = ast_app_separate_args(args, '|', argv, sizeof(argv) / sizeof(argv[0])))) {
spec = argv[0];
if ( argc > 1) {
options = argv[1];
}
if (ast_strlen_zero(spec) || !strcmp(spec, "all")) {
spec = NULL;
}
}
if (options) {
char *opts[OPT_ARG_ARRAY_SIZE];
ast_app_parse_options(chanspy_opts, &flags, opts, options);
if (ast_test_flag(&flags, OPTION_GROUP)) {
mygroup = opts[OPT_ARG_GROUP];
}
if (ast_test_flag(&flags, OPTION_RECORD)) {
if (!(recbase = opts[OPT_ARG_RECORD])) {
recbase = "chanspy";
}
}
silent = ast_test_flag(&flags, OPTION_QUIET);
bronly = ast_test_flag(&flags, OPTION_BRIDGED);
if (ast_test_flag(&flags, OPTION_VOLUME) && opts[OPT_ARG_VOLUME]) {
int vol;
if ((sscanf(opts[OPT_ARG_VOLUME], "%d", &vol) != 1) || (vol > 4) || (vol < -4))
ast_log(LOG_NOTICE, "Volume factor must be a number between -4 and 4\n");
else
volfactor = vol;
}
}
else
ast_clear_flag(&flags, AST_FLAGS_ALL);
if (recbase) {
char filename[512];
snprintf(filename,sizeof(filename),"%s/%s.%d.raw",ast_config_AST_MONITOR_DIR, recbase, (int)time(NULL));
if ((fd = open(filename, O_CREAT | O_WRONLY, O_TRUNC, 0644)) <= 0) {
ast_log(LOG_WARNING, "Cannot open %s for recording\n", filename);
fd = 0;
}
}
for(;;) {
if (!silent) {
res = ast_streamfile(chan, "beep", chan->language);
if (!res)
res = ast_waitstream(chan, "");
if (res < 0) {
ast_clear_flag(chan, AST_FLAG_SPYING);
break;
}
}
count = 0;
res = ast_waitfordigit(chan, waitms);
if (res < 0) {
ast_clear_flag(chan, AST_FLAG_SPYING);
break;
}
peer = local_channel_walk(NULL);
prev=NULL;
while(peer) {
if (peer != chan) {
char *group = NULL;
int igrp = 1;
if (peer == prev && !chosen) {
break;
}
chosen = 0;
group = pbx_builtin_getvar_helper(peer, "SPYGROUP");
if (mygroup) {
if (!group || strcmp(mygroup, group)) {
igrp = 0;
}
}
if (igrp && (!spec || ((strlen(spec) <= strlen(peer->name) &&
!strncasecmp(peer->name, spec, strlen(spec)))))) {
if (peer && (!bronly || ast_bridged_channel(peer)) &&
!ast_check_hangup(peer) && !ast_test_flag(peer, AST_FLAG_SPYING)) {
int x = 0;
strncpy(peer_name, "spy-", 5);
strncpy(peer_name + strlen(peer_name), peer->name, AST_NAME_STRLEN);
ptr = strchr(peer_name, '/');
*ptr = '\0';
ptr++;
for (x = 0 ; x < strlen(peer_name) ; x++) {
if (peer_name[x] == '/') {
break;
}
peer_name[x] = tolower(peer_name[x]);
}
if (!silent) {
if (ast_fileexists(peer_name, NULL, NULL) != -1) {
res = ast_streamfile(chan, peer_name, chan->language);
if (!res)
res = ast_waitstream(chan, "");
if (res)
break;
} else
res = ast_say_character_str(chan, peer_name, "", chan->language);
if ((num=atoi(ptr)))
ast_say_digits(chan, atoi(ptr), "", chan->language);
}
count++;
prev = peer;
res = channel_spy(chan, peer, &volfactor, fd);
if (res == -1) {
break;
} else if (res > 1 && spec) {
snprintf(name, AST_NAME_STRLEN, "%s/%d", spec, res);
if ((peer = local_get_channel_begin_name(name))) {
chosen = 1;
}
continue;
}
}
}
}
if ((peer = local_channel_walk(peer)) == NULL) {
break;
}
}
waitms = count ? 100 : 5000;
}
if (fd > 0) {
close(fd);
}
if (oldrf && ast_set_read_format(chan, oldrf) < 0) {
ast_log(LOG_ERROR, "Could Not Set Read Format.\n");
}
if (oldwf && ast_set_write_format(chan, oldwf) < 0) {
ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
}
ast_clear_flag(chan, AST_FLAG_SPYING);
ast_channel_setoption(chan, AST_OPTION_TXGAIN, &zero_volume, sizeof(zero_volume), 0);
ALL_DONE(u, res);
}
static int common_exec(struct ast_channel *chan, const struct ast_flags *flags,
int volfactor, const int fd, const char *mygroup, const char *spec,
const char *exten, const char *context)
{
char nameprefix[AST_NAME_STRLEN];
char peer_name[AST_NAME_STRLEN + 5];
signed char zero_volume = 0;
int waitms;
int res;
char *ptr;
int num;
int num_spyed_upon = 1;
struct chanspy_ds chanspy_ds = { 0, };
ast_mutex_init(&chanspy_ds.lock);
snprintf(chanspy_ds.unique_id, sizeof(chanspy_ds.unique_id), "%d", ast_atomic_fetchadd_int(&next_unique_id_to_use, +1));
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 chanspy_ds *peer_chanspy_ds = NULL, *next_chanspy_ds = NULL;
struct ast_channel *prev = NULL, *peer = 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;
}
}
res = ast_waitfordigit(chan, waitms);
if (res < 0) {
ast_clear_flag(chan, AST_FLAG_SPYING);
break;
}
/* reset for the next loop around, unless overridden later */
waitms = 100;
num_spyed_upon = 0;
for (peer_chanspy_ds = next_channel(chan, prev, spec, exten, context, &chanspy_ds);
peer_chanspy_ds;
chanspy_ds_free(peer_chanspy_ds), prev = peer,
peer_chanspy_ds = next_chanspy_ds ? next_chanspy_ds :
next_channel(chan, prev, spec, exten, context, &chanspy_ds), next_chanspy_ds = NULL) {
const char *group;
int igrp = !mygroup;
char *groups[25];
int num_groups = 0;
char dup_group[512];
int x;
char *s;
peer = peer_chanspy_ds->chan;
ast_mutex_unlock(&peer_chanspy_ds->lock);
if (peer == prev) {
ast_channel_unlock(peer);
chanspy_ds_free(peer_chanspy_ds);
break;
}
if (ast_check_hangup(chan)) {
ast_channel_unlock(peer);
chanspy_ds_free(peer_chanspy_ds);
break;
}
if (ast_test_flag(flags, OPTION_BRIDGED) && !ast_bridged_channel(peer)) {
ast_channel_unlock(peer);
continue;
}
if (ast_check_hangup(peer) || ast_test_flag(peer, AST_FLAG_SPYING)) {
ast_channel_unlock(peer);
continue;
}
if (mygroup) {
if ((group = pbx_builtin_getvar_helper(peer, "SPYGROUP"))) {
ast_copy_string(dup_group, group, sizeof(dup_group));
num_groups = ast_app_separate_args(dup_group, ':', groups,
sizeof(groups) / sizeof(groups[0]));
}
for (x = 0; x < num_groups; x++) {
if (!strcmp(mygroup, groups[x])) {
igrp = 1;
break;
}
}
}
if (!igrp) {
ast_channel_unlock(peer);
continue;
}
strcpy(peer_name, "spy-");
strncat(peer_name, peer->name, AST_NAME_STRLEN - 4 - 1);
ptr = strchr(peer_name, '/');
*ptr++ = '\0';
for (s = peer_name; s < ptr; s++)
*s = tolower(*s);
/* We have to unlock the peer channel here to avoid a deadlock.
* So, when we need to dereference it again, we have to lock the
* datastore and get the pointer from there to see if the channel
* is still valid. */
ast_channel_unlock(peer);
if (!ast_test_flag(flags, OPTION_QUIET)) {
if (ast_fileexists(peer_name, NULL, NULL) != -1) {
res = ast_streamfile(chan, peer_name, chan->language);
if (!res)
res = ast_waitstream(chan, "");
if (res) {
chanspy_ds_free(peer_chanspy_ds);
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, peer_chanspy_ds, &volfactor, fd, flags);
num_spyed_upon++;
if (res == -1) {
chanspy_ds_free(peer_chanspy_ds);
break;
} else if (res > 1 && spec) {
struct ast_channel *next;
snprintf(nameprefix, AST_NAME_STRLEN, "%s/%d", spec, res);
if ((next = ast_get_channel_by_name_prefix_locked(nameprefix, strlen(nameprefix)))) {
peer_chanspy_ds = chanspy_ds_free(peer_chanspy_ds);
next_chanspy_ds = setup_chanspy_ds(next, &chanspy_ds);
} else {
/* stay on this channel, if it is still valid */
ast_mutex_lock(&peer_chanspy_ds->lock);
if (peer_chanspy_ds->chan) {
ast_channel_lock(peer_chanspy_ds->chan);
next_chanspy_ds = peer_chanspy_ds;
peer_chanspy_ds = NULL;
} else {
/* the channel is gone */
ast_mutex_unlock(&peer_chanspy_ds->lock);
next_chanspy_ds = NULL;
}
}
peer = NULL;
}
}
if (res == -1 || ast_check_hangup(chan))
break;
}
ast_clear_flag(chan, AST_FLAG_SPYING);
ast_channel_setoption(chan, AST_OPTION_TXGAIN, &zero_volume, sizeof(zero_volume), 0);
ast_mutex_lock(&chanspy_ds.lock);
ast_mutex_unlock(&chanspy_ds.lock);
ast_mutex_destroy(&chanspy_ds.lock);
return res;
}
