C++ RAYO_JID函数代码示例

/**
 * Start execution of call output component
 * @param component to start
 * @param session the session to output to
 * @param output the output request
 * @param iq the original request
 */
static iks *start_call_output(struct rayo_component *component, switch_core_session_t *session, iks *output, iks *iq)
{
	switch_stream_handle_t stream = { 0 };

	/* acknowledge command */
	rayo_component_send_start(component, iq);

	/* build playback command */
	SWITCH_STANDARD_STREAM(stream);
	stream.write_function(&stream, "{id=%s,session=%s,pause=%s",
		RAYO_JID(component), switch_core_session_get_uuid(session),
		OUTPUT_COMPONENT(component)->start_paused ? "true" : "false");
	if (OUTPUT_COMPONENT(component)->max_time > 0) {
		stream.write_function(&stream, ",timeout=%i", OUTPUT_COMPONENT(component)->max_time * 1000);
	}
	stream.write_function(&stream, "}fileman://rayo://%s", RAYO_JID(component));

	if (switch_ivr_displace_session(session, stream.data, 0, "m") == SWITCH_STATUS_SUCCESS) {
		RAYO_UNLOCK(component);
	} else {
		if (OUTPUT_COMPONENT(component)->document) {
			iks_delete(OUTPUT_COMPONENT(component)->document);
		}
		if (switch_channel_get_state(switch_core_session_get_channel(session)) >= CS_HANGUP) {
			rayo_component_send_complete(component, COMPONENT_COMPLETE_HANGUP);
			component = NULL;
		} else {
			rayo_component_send_complete(component, COMPONENT_COMPLETE_ERROR);
			component = NULL;
		}
	}
	switch_safe_free(stream.data);
	return NULL;
}

/**
 * Pass output component command
 */
static iks *forward_output_component_request(struct rayo_actor *prompt, struct rayo_message *msg, void *data)
{
	iks *iq = msg->payload;
	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s (%s) %s prompt\n",
		RAYO_JID(prompt), prompt_component_state_to_string(PROMPT_COMPONENT(prompt)->state), iks_name(iks_first_tag(iq)));

	switch (PROMPT_COMPONENT(prompt)->state) {
		case PCS_OUTPUT:
		case PCS_START_INPUT_OUTPUT:
		case PCS_INPUT_OUTPUT: {
			/* forward request to output component */
			iks_insert_attrib(iq, "from", RAYO_JID(prompt));
			iks_insert_attrib(iq, "to", PROMPT_COMPONENT(prompt)->output_jid);
			RAYO_SEND_MESSAGE_DUP(prompt, PROMPT_COMPONENT(prompt)->output_jid, iq);
			return NULL;
		}
		case PCS_START_INPUT_TIMERS:
		case PCS_START_OUTPUT:
		case PCS_START_OUTPUT_BARGE:
			/* ref hasn't been sent yet */
			return iks_new_error_detailed(iq, STANZA_ERROR_UNEXPECTED_REQUEST, "too soon");
			break;
		case PCS_START_INPUT:
		case PCS_STOP_OUTPUT:
		case PCS_DONE_STOP_OUTPUT:
		case PCS_INPUT:
		case PCS_DONE:
			return iks_new_error_detailed(iq, STANZA_ERROR_UNEXPECTED_REQUEST, "output is finished");
	}
	return NULL;
}

/**
 * Handle input failure.
 */
static iks *prompt_component_handle_input_error(struct rayo_actor *prompt, struct rayo_message *msg, void *data)
{
	iks *iq = msg->payload;
	iks *error = iks_find(iq, "error");

	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s (%s) input error\n",
		RAYO_JID(prompt), prompt_component_state_to_string(PROMPT_COMPONENT(prompt)->state));

	switch (PROMPT_COMPONENT(prompt)->state) {
		case PCS_START_INPUT_TIMERS:
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s, <input> error: %s\n", RAYO_JID(prompt), iks_string(iks_stack(iq), iq));
			PROMPT_COMPONENT(prompt)->state = PCS_DONE;

			/* forward IQ error to client */
			iq = PROMPT_COMPONENT(prompt)->iq;
			iks_insert_attrib(iq, "from", RAYO_JID(RAYO_COMPONENT(prompt)->parent));
			iks_insert_attrib(iq, "to", RAYO_COMPONENT(prompt)->client_jid);
			iks_insert_node(iq, iks_copy_within(error, iks_stack(iq)));
			RAYO_SEND_REPLY(prompt, RAYO_COMPONENT(prompt)->client_jid, iq);

			/* done */
			RAYO_UNLOCK(prompt);
			RAYO_DESTROY(prompt);

			break;

		case PCS_START_INPUT:
			/* send presence error to client */
			PROMPT_COMPONENT(prompt)->state = PCS_DONE;
			iks_delete(PROMPT_COMPONENT(prompt)->iq);
			rayo_component_send_complete(RAYO_COMPONENT(prompt), COMPONENT_COMPLETE_ERROR);
			break;
		case PCS_START_INPUT_OUTPUT:
			PROMPT_COMPONENT(prompt)->state = PCS_DONE_STOP_OUTPUT;

			/* forward IQ error to client */
			iq = PROMPT_COMPONENT(prompt)->iq;
			iks_insert_attrib(iq, "from", RAYO_JID(RAYO_COMPONENT(prompt)->parent));
			iks_insert_attrib(iq, "to", RAYO_COMPONENT(prompt)->client_jid);
			iks_insert_node(iq, iks_copy_within(error, iks_stack(iq)));
			PROMPT_COMPONENT(prompt)->complete = iq;

			rayo_component_send_stop(prompt, PROMPT_COMPONENT(prompt)->output_jid);
			break;
		case PCS_START_OUTPUT:
		case PCS_START_OUTPUT_BARGE:
		case PCS_INPUT_OUTPUT:
		case PCS_STOP_OUTPUT:
		case PCS_INPUT:
		case PCS_OUTPUT:
		case PCS_DONE_STOP_OUTPUT:
		case PCS_DONE:
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s, unexpected start input error event\n", RAYO_JID(prompt));
			break;
	}

	return NULL;
}

/**
 * Lower volume of output component
 */
static iks *volume_down_output_component(struct rayo_actor *component, struct rayo_message *msg, void *data)
{
	iks *iq = msg->payload;
	switch_stream_handle_t stream = { 0 };
	char *command = switch_mprintf("%s volume:-", RAYO_JID(component));
	SWITCH_STANDARD_STREAM(stream);
	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "%s lowering volume\n", RAYO_JID(component));
	switch_api_execute("fileman", command, NULL, &stream);
	switch_safe_free(stream.data);
	switch_safe_free(command);
	return iks_new_iq_result(iq);
}

/**
 * Start execution of mixer output component
 */
static iks *start_mixer_output_component(struct rayo_actor *mixer, struct rayo_message *msg, void *data)
{
	iks *iq = msg->payload;
	struct rayo_component *component = NULL;
	iks *output = iks_find(iq, "output");
	iks *document = NULL;
	switch_stream_handle_t stream = { 0 };

	/* validate output attributes */
	if (!VALIDATE_RAYO_OUTPUT(output)) {
		return iks_new_error(iq, STANZA_ERROR_BAD_REQUEST);
	}

	/* check if <document> exists */
	document = iks_find(output, "document");
	if (!document) {
		return iks_new_error(iq, STANZA_ERROR_BAD_REQUEST);
	}

	component = create_output_component(mixer, RAT_MIXER_COMPONENT, output, iks_find_attrib(iq, "from"));
	if (!component) {
		return iks_new_error_detailed(iq, STANZA_ERROR_INTERNAL_SERVER_ERROR, "Failed to create output entity");
	}

	/* build conference command */
	SWITCH_STANDARD_STREAM(stream);
	stream.write_function(&stream, "%s play ", rayo_mixer_get_name(RAYO_MIXER(mixer)), RAYO_ID(component));

	stream.write_function(&stream, "{id=%s,pause=%s",
		RAYO_JID(component),
		OUTPUT_COMPONENT(component)->start_paused ? "true" : "false");
	if (OUTPUT_COMPONENT(component)->max_time_ms > 0) {
		stream.write_function(&stream, ",timeout=%i", OUTPUT_COMPONENT(component)->max_time_ms);
	}
	if (OUTPUT_COMPONENT(component)->start_offset_ms > 0) {
		stream.write_function(&stream, ",start_offset_ms=%i", OUTPUT_COMPONENT(component)->start_offset_ms);
	}
	stream.write_function(&stream, "}fileman://rayo://%s", RAYO_JID(component));

	/* acknowledge command */
	rayo_component_send_start(component, iq);

	rayo_component_api_execute_async(component, "conference", stream.data);

	switch_safe_free(stream.data);
	RAYO_RELEASE(component);

	return NULL;
}

/**
 * Start input component
 */
static void start_input(struct prompt_component *prompt, int start_timers, int barge_event)
{
	iks *iq = iks_new("iq");
	iks *input = iks_find(PROMPT_COMPONENT(prompt)->iq, "prompt");
	input = iks_find(input, "input");
	iks_insert_attrib(iq, "from", RAYO_JID(prompt));
	iks_insert_attrib(iq, "to", RAYO_JID(RAYO_COMPONENT(prompt)->parent));
	iks_insert_attrib_printf(iq, "id", "mod_rayo-prompt-%d", RAYO_SEQ_NEXT(prompt));
	iks_insert_attrib(iq, "type", "set");
	input = iks_copy_within(input, iks_stack(iq));
	iks_insert_attrib(input, "start-timers", start_timers ? "true" : "false");
	iks_insert_attrib(input, "barge-event", barge_event ? "true" : "false");
	iks_insert_node(iq, input);
	RAYO_SEND_MESSAGE(prompt, RAYO_JID(RAYO_COMPONENT(prompt)->parent), iq);
}

/**
 * Start input component timers
 */
static void start_input_timers(struct prompt_component *prompt)
{
	iks *x;
	iks *iq = iks_new("iq");
	iks_insert_attrib(iq, "from", RAYO_JID(prompt));
	iks_insert_attrib(iq, "to", prompt->input_jid);
	iks_insert_attrib(iq, "type", "set");
	iks_insert_attrib_printf(iq, "id", "mod_rayo-prompt-%d", RAYO_SEQ_NEXT(prompt));
	x = iks_insert(iq, "start-timers");
	iks_insert_attrib(x, "xmlns", RAYO_INPUT_NS);
	RAYO_SEND_MESSAGE(prompt, prompt->input_jid, iq);
}

/**
 * Send stop to component
 */
static void rayo_component_send_stop(struct rayo_actor *from, const char *to)
{
	iks *stop = iks_new("iq");
	iks *x;
	iks_insert_attrib(stop, "from", RAYO_JID(from));
	iks_insert_attrib(stop, "to", to);
	iks_insert_attrib(stop, "type", "set");
	iks_insert_attrib_printf(stop, "id", "mod_rayo-prompt-%d", RAYO_SEQ_NEXT(from));
	x = iks_insert(stop, "stop");
	iks_insert_attrib(x, "xmlns", RAYO_EXT_NS);
	RAYO_SEND_MESSAGE(from, to, stop);
}

/**
 * Forward result
 */
static iks *prompt_component_handle_result(struct rayo_actor *prompt, struct rayo_message *msg, void *data)
{
	iks *iq = msg->payload;

	/* forward all results, except for internal ones... */
	if (strncmp("mod_rayo-prompt", iks_find_attrib_soft(iq, "id"), 15)) {
		iks_insert_attrib(iq, "from", RAYO_JID(prompt));
		iks_insert_attrib(iq, "to", RAYO_COMPONENT(prompt)->client_jid);
		RAYO_SEND_REPLY_DUP(prompt, RAYO_COMPONENT(prompt)->client_jid, iq);
	}
	return NULL;
}

/**
 * Forward CPA signal to client
 */
static void rayo_cpa_detector_event(const char *jid, void *user_data)
{
    struct rayo_actor *component = RAYO_LOCATE(jid);
    if (component) {
        if (CPA_COMPONENT(component)->ready) {
            switch_event_t *event = (switch_event_t *)user_data;
            const char *signal_type = switch_event_get_header(event, "signal-type");
            struct cpa_signal *cpa_signal = switch_core_hash_find(CPA_COMPONENT(component)->signals, signal_type);
            switch_log_printf(SWITCH_CHANNEL_UUID_LOG(RAYO_COMPONENT(component)->parent->id), SWITCH_LOG_DEBUG, "Handling CPA event\n");
            if (cpa_signal) {
                const char *value = switch_event_get_header(event, "value");
                const char *duration = switch_event_get_header(event, "duration");
                if (cpa_signal->terminate) {
                    iks *complete_event;
                    iks *signal_xml;

                    stop_cpa_detectors(CPA_COMPONENT(component));

                    /* send complete event to client */
                    complete_event = rayo_component_create_complete_event(RAYO_COMPONENT(component), "signal", RAYO_CPA_NS);
                    signal_xml = iks_find(complete_event, "complete");
                    signal_xml = iks_find(signal_xml, "signal");
                    iks_insert_attrib(signal_xml, "type", signal_type);
                    if (!zstr(value)) {
                        iks_insert_attrib(signal_xml, "value", value);
                    }
                    if (!zstr(duration)) {
                        iks_insert_attrib(signal_xml, "duration", duration);
                    }
                    rayo_component_send_complete_event(RAYO_COMPONENT(component), complete_event);
                } else {
                    /* send event to client */
                    iks *signal_event = iks_new_presence("signal", RAYO_CPA_NS, RAYO_JID(component), RAYO_COMPONENT(component)->client_jid);
                    iks *signal_xml = iks_find(signal_event, "signal");
                    iks_insert_attrib(signal_xml, "type", signal_type);
                    if (!zstr(value)) {
                        iks_insert_attrib(signal_xml, "value", value);
                    }
                    if (!zstr(duration)) {
                        iks_insert_attrib(signal_xml, "duration", duration);
                    }
                    RAYO_SEND_REPLY(component, RAYO_COMPONENT(component)->client_jid, signal_event);
                }
            }
        } else {
            switch_log_printf(SWITCH_CHANNEL_UUID_LOG(RAYO_COMPONENT(component)->parent->id), SWITCH_LOG_DEBUG, "Skipping CPA event\n");
        }
        RAYO_UNLOCK(component);
    }
}

/**
 * Stop all CPA detectors
 */
static void stop_cpa_detectors(struct cpa_component *cpa)
{
    if (cpa->signals) {
        switch_hash_index_t *hi = NULL;
        for (hi = switch_core_hash_first(cpa->signals); hi; hi = switch_core_hash_next(hi)) {
            const void *signal_type;
            void *cpa_signal = NULL;
            switch_core_hash_this(hi, &signal_type, NULL, &cpa_signal);
            if (cpa_signal) {
                rayo_cpa_detector_stop(RAYO_COMPONENT(cpa)->parent->id, ((struct cpa_signal *)cpa_signal)->name);
                unsubscribe(RAYO_COMPONENT(cpa)->parent->id, ((struct cpa_signal *)cpa_signal)->name, RAYO_JID(cpa));
            }
        }
        switch_core_hash_destroy(&cpa->signals);
        cpa->signals = NULL;
    }
    unsubscribe(RAYO_COMPONENT(cpa)->parent->id, "hangup", RAYO_JID(cpa));
}

/**
 * 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));
	rayo_component_init((struct rayo_component *)receivefax_component, pool, RAT_CALL_COMPONENT, "receivefax", NULL, call, iks_find_attrib(iq, "from"));
	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);

	/* clear fax interrupt variable */
	switch_channel_set_variable(switch_core_session_get_channel(session), "rayo_read_frame_interrupt", 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_UNLOCK(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_UNLOCK(receivefax_component);
	}

	return response;
//.........这里部分代码省略.........

/**
 * 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);

//.........这里部分代码省略.........

/**
 * Start CPA
 */
iks *rayo_cpa_component_start(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;
    iks *input = iks_find(iq, "input");
    switch_memory_pool_t *pool = NULL;
    struct cpa_component *component = NULL;
    int have_grammar = 0;
    iks *grammar = NULL;

    /* create CPA component */
    switch_core_new_memory_pool(&pool);
    component = switch_core_alloc(pool, sizeof(*component));
    component = CPA_COMPONENT(rayo_component_init((struct rayo_component *)component, pool, RAT_CALL_COMPONENT, "cpa", NULL, call, iks_find_attrib(iq, "from")));
    if (!component) {
        switch_core_destroy_memory_pool(&pool);
        return iks_new_error_detailed(iq, STANZA_ERROR_INTERNAL_SERVER_ERROR, "Failed to create CPA entity");
    }

    switch_core_hash_init(&component->signals);

    /* start CPA detectors */
    for (grammar = iks_find(input, "grammar"); grammar; grammar = iks_next_tag(grammar)) {
        if (!strcmp("grammar", iks_name(grammar))) {
            const char *error_str = "";
            const char *url = iks_find_attrib_soft(grammar, "url");
            char *url_dup;
            char *url_params;

            if (zstr(url)) {
                stop_cpa_detectors(component);
                RAYO_UNLOCK(component);
                RAYO_DESTROY(component);
                return iks_new_error_detailed(iq, STANZA_ERROR_BAD_REQUEST, "Missing grammar URL");
            }
            have_grammar = 1;

            url_dup = strdup(url);
            if ((url_params = strchr(url_dup, '?'))) {
                *url_params = '\0';
                url_params++;
            }

            if (switch_core_hash_find(component->signals, url)) {
                free(url_dup);
                stop_cpa_detectors(component);
                RAYO_UNLOCK(component);
                RAYO_DESTROY(component);
                return iks_new_error_detailed(iq, STANZA_ERROR_BAD_REQUEST, "Duplicate URL");
            }

            /* start detector */
            /* TODO return better reasons... */
            if (rayo_cpa_detector_start(switch_core_session_get_uuid(session), url_dup, &error_str)) {
                struct cpa_signal *cpa_signal = switch_core_alloc(pool, sizeof(*cpa_signal));
                cpa_signal->terminate = !zstr(url_params) && strstr(url_params, "terminate=true");
                cpa_signal->name = switch_core_strdup(pool, url_dup);
                switch_core_hash_insert(component->signals, cpa_signal->name, cpa_signal);
                subscribe(switch_core_session_get_uuid(session), cpa_signal->name, RAYO_JID(component));
            } else {
                free(url_dup);
                stop_cpa_detectors(component);
                RAYO_UNLOCK(component);
                RAYO_DESTROY(component);
                return iks_new_error_detailed(iq, STANZA_ERROR_INTERNAL_SERVER_ERROR, error_str);
            }

            free(url_dup);
        }
    }

    if (!have_grammar) {
        stop_cpa_detectors(component);
        RAYO_UNLOCK(component);
        RAYO_DESTROY(component);
        return iks_new_error_detailed(iq, STANZA_ERROR_BAD_REQUEST, "No grammar defined");
    }

    /* acknowledge command */
    rayo_component_send_start(RAYO_COMPONENT(component), iq);

    /* TODO hangup race condition */
    subscribe(switch_core_session_get_uuid(session), "hangup", RAYO_JID(component));

    /* ready to forward detector events */
    component->ready = 1;

    return NULL;
}