/**
* Handle fax completion event from FreeSWITCH core
* @param event received from FreeSWITCH core. It will be destroyed by the core after this function returns.
*/
static void on_execute_complete_event(switch_event_t *event)
{
const char *application = switch_event_get_header(event, "Application");
if (!zstr(application) && (!strcmp(application, "rxfax") || !strcmp(application, "txfax"))) {
int is_rxfax = !strcmp(application, "rxfax");
const char *uuid = switch_event_get_header(event, "Unique-ID");
const char *fax_jid = switch_event_get_header(event, "variable_rayo_fax_jid");
struct rayo_actor *component;
if (!zstr(fax_jid) && (component = RAYO_LOCATE(fax_jid))) {
iks *result;
iks *complete;
iks *fax;
int have_fax_document = 1;
switch_core_session_t *session;
switch_log_printf(SWITCH_CHANNEL_UUID_LOG(uuid), SWITCH_LOG_DEBUG, "Got result for %s\n", fax_jid);
/* clean up channel */
session = switch_core_session_locate(uuid);
if (session) {
switch_channel_set_variable(switch_core_session_get_channel(session), "rayo_read_frame_interrupt", NULL);
switch_core_session_rwunlock(session);
}
/* RX only: transfer HTTP document and delete local copy */
if (is_rxfax && RECEIVEFAX_COMPONENT(component)->http_put_after_receive && switch_file_exists(RECEIVEFAX_COMPONENT(component)->local_filename, RAYO_POOL(component)) == SWITCH_STATUS_SUCCESS) {
switch_stream_handle_t stream = { 0 };
SWITCH_STANDARD_STREAM(stream);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s PUT fax to %s\n", RAYO_JID(component), RECEIVEFAX_COMPONENT(component)->filename);
switch_api_execute("http_put", RECEIVEFAX_COMPONENT(component)->filename, NULL, &stream);
/* check if successful */
if (!zstr(stream.data) && strncmp(stream.data, "+OK", 3)) {
/* PUT failed */
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s PUT fax to %s failed: %s\n", RAYO_JID(component), RECEIVEFAX_COMPONENT(component)->filename, (char *)stream.data);
have_fax_document = 0;
}
switch_safe_free(stream.data)
switch_file_remove(RECEIVEFAX_COMPONENT(component)->local_filename, RAYO_POOL(component));
}
/* successful fax? */
if (have_fax_document && switch_true(switch_event_get_header(event, "variable_fax_success"))) {
result = rayo_component_create_complete_event(RAYO_COMPONENT(component), FAX_FINISH);
} else if (have_fax_document && FAX_COMPONENT(component)->stop) {
result = rayo_component_create_complete_event(RAYO_COMPONENT(component), COMPONENT_COMPLETE_STOP);
} else {
result = rayo_component_create_complete_event(RAYO_COMPONENT(component), COMPONENT_COMPLETE_ERROR);
}
complete = iks_find(result, "complete");
/* RX only: add fax document information */
if (is_rxfax && have_fax_document) {
const char *pages = switch_event_get_header(event, "variable_fax_document_transferred_pages");
if (!zstr(pages) && switch_is_number(pages) && atoi(pages) > 0) {
const char *resolution = switch_event_get_header(event, "variable_fax_file_image_resolution");
const char *size = switch_event_get_header(event, "variable_fax_image_size");
fax = iks_insert(complete, "fax");
iks_insert_attrib(fax, "xmlns", RAYO_FAX_COMPLETE_NS);
if (RECEIVEFAX_COMPONENT(component)->http_put_after_receive) {
iks_insert_attrib(fax, "url", RECEIVEFAX_COMPONENT(component)->filename);
} else {
/* convert absolute path to file:// URI */
iks_insert_attrib_printf(fax, "url", "file://%s", RECEIVEFAX_COMPONENT(component)->filename);
}
if (!zstr(resolution)) {
iks_insert_attrib(fax, "resolution", resolution);
}
if (!zstr(size)) {
iks_insert_attrib(fax, "size", size);
}
iks_insert_attrib(fax, "pages", pages);
}
}
/* add metadata from event */
insert_fax_metadata(event, "fax_success", complete);
insert_fax_metadata(event, "fax_result_code", complete);
insert_fax_metadata(event, "fax_result_text", complete);
insert_fax_metadata(event, "fax_document_transferred_pages", complete);
insert_fax_metadata(event, "fax_document_total_pages", complete);
insert_fax_metadata(event, "fax_image_resolution", complete);
insert_fax_metadata(event, "fax_image_size", complete);
insert_fax_metadata(event, "fax_bad_rows", complete);
insert_fax_metadata(event, "fax_transfer_rate", complete);
insert_fax_metadata(event, "fax_ecm_used", complete);
insert_fax_metadata(event, "fax_local_station_id", complete);
insert_fax_metadata(event, "fax_remote_station_id", complete);
/* flag faxing as done */
rayo_call_set_faxing(RAYO_CALL(RAYO_COMPONENT(component)->parent), 0);
rayo_component_send_complete_event(RAYO_COMPONENT(component), result);
RAYO_UNLOCK(component);
}
}
}
/**
* Start execution of call receivefax component
* @param call the call to receive fax from
* @param msg the original request
* @param session_data the call's session
*/
static iks *start_receivefax_component(struct rayo_actor *call, struct rayo_message *msg, void *session_data)
{
iks *iq = msg->payload;
switch_core_session_t *session = (switch_core_session_t *)session_data;
struct receivefax_component *receivefax_component = NULL;
iks *receivefax = iks_find(iq, "receivefax");
iks *response = NULL;
switch_event_t *execute_event = NULL;
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_memory_pool_t *pool;
int file_no;
/* validate attributes */
if (!VALIDATE_RAYO_RECEIVEFAX(receivefax)) {
return iks_new_error(iq, STANZA_ERROR_BAD_REQUEST);
}
/* fax is only allowed if the call is not currently joined */
if (rayo_call_is_joined(RAYO_CALL(call))) {
return iks_new_error_detailed(iq, STANZA_ERROR_UNEXPECTED_REQUEST, "can't receive fax on a joined call");
}
if (rayo_call_is_faxing(RAYO_CALL(call))) {
return iks_new_error_detailed(iq, STANZA_ERROR_UNEXPECTED_REQUEST, "fax already in progress");
}
/* create receivefax component */
switch_core_new_memory_pool(&pool);
receivefax_component = switch_core_alloc(pool, sizeof(*receivefax_component));
receivefax_component = RECEIVEFAX_COMPONENT(rayo_component_init((struct rayo_component *)receivefax_component, pool, RAT_CALL_COMPONENT, "receivefax", NULL, call, iks_find_attrib(iq, "from")));
if (!receivefax_component) {
switch_core_destroy_memory_pool(&pool);
return iks_new_error_detailed(iq, STANZA_ERROR_INTERNAL_SERVER_ERROR, "Failed to create sendfax entity");
}
file_no = rayo_actor_seq_next(call);
receivefax_component->filename = switch_core_sprintf(pool, "%s%s%s-%d.tif",
globals.file_prefix, SWITCH_PATH_SEPARATOR, switch_core_session_get_uuid(session), file_no);
if (!strncmp(receivefax_component->filename, "http://", 7) || !strncmp(receivefax_component->filename, "https://", 8)) {
/* This is an HTTP URL, need to PUT after fax is received */
receivefax_component->local_filename = switch_core_sprintf(pool, "%s%s%s-%d",
SWITCH_GLOBAL_dirs.temp_dir, SWITCH_PATH_SEPARATOR, switch_core_session_get_uuid(session), file_no);
receivefax_component->http_put_after_receive = 1;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s save fax to HTTP URL\n", RAYO_JID(receivefax_component));
} else {
/* assume file.. */
receivefax_component->local_filename = receivefax_component->filename;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s save fax to local file\n", RAYO_JID(receivefax_component));
}
/* add channel variable so that fax component can be located from fax events */
switch_channel_set_variable(channel, "rayo_fax_jid", RAYO_JID(receivefax_component));
/* clear fax result variables */
switch_channel_set_variable(channel, "fax_success", NULL);
switch_channel_set_variable(channel, "fax_result_code", NULL);
switch_channel_set_variable(channel, "fax_result_text", NULL);
switch_channel_set_variable(channel, "fax_document_transferred_pages", NULL);
switch_channel_set_variable(channel, "fax_document_total_pages", NULL);
switch_channel_set_variable(channel, "fax_image_resolution", NULL);
switch_channel_set_variable(channel, "fax_image_size", NULL);
switch_channel_set_variable(channel, "fax_bad_rows", NULL);
switch_channel_set_variable(channel, "fax_transfer_rate", NULL);
switch_channel_set_variable(channel, "fax_ecm_used", NULL);
switch_channel_set_variable(channel, "fax_local_station_id", NULL);
switch_channel_set_variable(channel, "fax_remote_station_id", NULL);
rayo_call_set_faxing(RAYO_CALL(call), 1);
/* execute rxfax APP */
if (switch_event_create(&execute_event, SWITCH_EVENT_COMMAND) == SWITCH_STATUS_SUCCESS) {
switch_event_add_header_string(execute_event, SWITCH_STACK_BOTTOM, "call-command", "execute");
switch_event_add_header_string(execute_event, SWITCH_STACK_BOTTOM, "execute-app-name", "rxfax");
switch_event_add_header_string(execute_event, SWITCH_STACK_BOTTOM, "execute-app-arg", receivefax_component->local_filename);
if (!switch_channel_test_flag(channel, CF_PROXY_MODE)) {
switch_channel_set_flag(channel, CF_BLOCK_BROADCAST_UNTIL_MEDIA);
}
if (switch_core_session_queue_private_event(session, &execute_event, SWITCH_FALSE) != SWITCH_STATUS_SUCCESS) {
response = iks_new_error_detailed(iq, STANZA_ERROR_INTERNAL_SERVER_ERROR, "failed to rxfax (queue event failed)");
if (execute_event) {
switch_event_destroy(&execute_event);
}
rayo_call_set_faxing(RAYO_CALL(call), 0);
RAYO_RELEASE(receivefax_component);
} else {
/* component starting... */
rayo_component_send_start(RAYO_COMPONENT(receivefax_component), iq);
}
} else {
response = iks_new_error_detailed(iq, STANZA_ERROR_INTERNAL_SERVER_ERROR, "failed to create rxfax event");
rayo_call_set_faxing(RAYO_CALL(call), 0);
RAYO_RELEASE(receivefax_component);
}
return response;
}
