static void qd_manage_response_handler(void *context, const qd_amqp_error_t *status, bool more)
{
qd_management_context_t *ctx = (qd_management_context_t*) context;
if (ctx->operation_type == QD_ROUTER_OPERATION_QUERY) {
if (status->status / 100 == 2) { // There is no error, proceed to conditionally call get_next
if (more) {
ctx->current_count++; // Increment how many you have at hand
if (ctx->count != ctx->current_count) {
qdr_query_get_next(ctx->query);
return;
} else
//
// This is the one case where the core agent won't free the query itself.
//
qdr_query_free(ctx->query);
}
}
qd_compose_end_list(ctx->field);
qd_compose_end_map(ctx->field);
}
else if (ctx->operation_type == QD_ROUTER_OPERATION_DELETE) {
// The body of the delete response message MUST consist of an amqp-value section containing a Map with zero entries.
qd_compose_start_map(ctx->field);
qd_compose_end_map(ctx->field);
}
qd_field_iterator_t *reply_to = 0;
qd_composed_field_t *fld = 0;
// Start composing the message.
// First set the properties on the message like reply_to, correlation-id etc.
qd_set_properties(ctx->source, &reply_to, &fld);
// Second, set the status on the message, QD_AMQP_OK or QD_AMQP_BAD_REQUEST and so on.
qd_set_response_status(status, &fld);
// Finally, compose and send the message.
qd_message_compose_3(ctx->msg, fld, ctx->field);
qdr_send_to1(ctx->core, ctx->msg, reply_to, true, false);
// We have come to the very end. Free the appropriate memory.
// Just go over this with Ted to see if I freed everything.
qd_field_iterator_free(reply_to);
qd_compose_free(fld);
qd_message_free(ctx->msg);
qd_message_free(ctx->source);
qd_compose_free(ctx->field);
free_qd_management_context_t(ctx);
}
static PyObject *qd_python_send(PyObject *self, PyObject *args)
{
qd_error_clear();
IoAdapter *ioa = (IoAdapter*) self;
qd_composed_field_t *field = 0;
PyObject *message = 0;
int no_echo = 1;
int control = 0;
if (!PyArg_ParseTuple(args, "O|ii", &message, &no_echo, &control))
return 0;
if (compose_python_message(&field, message, ioa->qd) == QD_ERROR_NONE) {
qd_message_t *msg = qd_message();
qd_message_compose_2(msg, field);
qd_composed_field_t *ingress = qd_compose_subfield(0);
qd_compose_insert_string(ingress, qd_router_id(ioa->qd));
qd_composed_field_t *trace = qd_compose_subfield(0);
qd_compose_start_list(trace);
qd_compose_insert_string(trace, qd_router_id(ioa->qd));
qd_compose_end_list(trace);
qd_message_set_ingress_annotation(msg, ingress);
qd_message_set_trace_annotation(msg, trace);
PyObject *address = PyObject_GetAttrString(message, "address");
if (address) {
qdr_send_to2(ioa->core, msg, PyString_AsString(address), (bool) no_echo, (bool) control);
Py_DECREF(address);
}
qd_compose_free(field);
qd_message_free(msg);
Py_RETURN_NONE;
}
if (!PyErr_Occurred())
PyErr_SetString(PyExc_RuntimeError, qd_error_message());
return 0;
}
/**
* Inbound Delivery Handler
*/
static void AMQP_rx_handler(void* context, qd_link_t *link, pn_delivery_t *pnd)
{
qd_router_t *router = (qd_router_t*) context;
pn_link_t *pn_link = qd_link_pn(link);
qdr_link_t *rlink = (qdr_link_t*) qd_link_get_context(link);
qdr_delivery_t *delivery = 0;
qd_message_t *msg;
//
// Receive the message into a local representation. If the returned message
// pointer is NULL, we have not yet received a complete message.
//
// Note: In the link-routing case, consider cutting the message through. There's
// no reason to wait for the whole message to be received before starting to
// send it.
//
msg = qd_message_receive(pnd);
if (!msg)
return;
//
// Consume the delivery.
//
pn_link_advance(pn_link);
//
// If there's no router link, free the message and finish. It's likely that the link
// is closing.
//
if (!rlink) {
qd_message_free(msg);
return;
}
//
// Handle the link-routed case
//
if (qdr_link_is_routed(rlink)) {
pn_delivery_tag_t dtag = pn_delivery_tag(pnd);
delivery = qdr_link_deliver_to_routed_link(rlink, msg, pn_delivery_settled(pnd), (uint8_t*) dtag.start, dtag.size);
if (delivery) {
if (pn_delivery_settled(pnd))
pn_delivery_settle(pnd);
else {
pn_delivery_set_context(pnd, delivery);
qdr_delivery_set_context(delivery, pnd);
qdr_delivery_incref(delivery);
}
}
return;
}
//
// Determine if the incoming link is anonymous. If the link is addressed,
// there are some optimizations we can take advantage of.
//
bool anonymous_link = qdr_link_is_anonymous(rlink);
//
// Determine if the user of this connection is allowed to proxy the
// user_id of messages. A message user_id is proxied when the
// property value differs from the authenticated user name of the connection.
// If the user is not allowed to proxy the user_id then the message user_id
// must be blank or it must be equal to the connection user name.
//
bool check_user = false;
qd_connection_t *conn = qd_link_connection(link);
if (conn->policy_settings)
check_user = !conn->policy_settings->allowUserIdProxy;
//
// Validate the content of the delivery as an AMQP message. This is done partially, only
// to validate that we can find the fields we need to route the message.
//
// If the link is anonymous, we must validate through the message properties to find the
// 'to' field. If the link is not anonymous, we don't need the 'to' field as we will be
// using the address from the link target.
//
qd_message_depth_t validation_depth = (anonymous_link || check_user) ? QD_DEPTH_PROPERTIES : QD_DEPTH_MESSAGE_ANNOTATIONS;
bool valid_message = qd_message_check(msg, validation_depth);
if (valid_message) {
if (check_user) {
// This connection must not allow proxied user_id
qd_iterator_t *userid_iter = qd_message_field_iterator(msg, QD_FIELD_USER_ID);
if (userid_iter) {
// The user_id property has been specified
if (qd_iterator_remaining(userid_iter) > 0) {
// user_id property in message is not blank
if (!qd_iterator_equal(userid_iter, (const unsigned char *)conn->user_id)) {
// This message is rejected: attempted user proxy is disallowed
qd_log(router->log_source, QD_LOG_DEBUG, "Message rejected due to user_id proxy violation. User:%s", conn->user_id);
pn_link_flow(pn_link, 1);
pn_delivery_update(pnd, PN_REJECTED);
pn_delivery_settle(pnd);
qd_message_free(msg);
qd_iterator_free(userid_iter);
return;
}
}
qd_iterator_free(userid_iter);
}
}
qd_parsed_field_t *in_ma = qd_message_message_annotations(msg);
qd_bitmask_t *link_exclusions;
bool strip = qdr_link_strip_annotations_in(rlink);
qd_iterator_t *ingress_iter = router_annotate_message(router, in_ma, msg, &link_exclusions, strip);
if (anonymous_link) {
qd_iterator_t *addr_iter = 0;
int phase = 0;
//
// If the message has delivery annotations, get the to-override field from the annotations.
//
if (in_ma) {
qd_parsed_field_t *ma_to = qd_parse_value_by_key(in_ma, QD_MA_TO);
if (ma_to) {
addr_iter = qd_iterator_dup(qd_parse_raw(ma_to));
phase = qd_message_get_phase_annotation(msg);
}
}
//
// Still no destination address? Use the TO field from the message properties.
//
if (!addr_iter)
addr_iter = qd_message_field_iterator(msg, QD_FIELD_TO);
if (addr_iter) {
qd_iterator_reset_view(addr_iter, ITER_VIEW_ADDRESS_HASH);
if (phase > 0)
qd_iterator_annotate_phase(addr_iter, '0' + (char) phase);
delivery = qdr_link_deliver_to(rlink, msg, ingress_iter, addr_iter, pn_delivery_settled(pnd),
link_exclusions);
}
} else {
const char *term_addr = pn_terminus_get_address(qd_link_remote_target(link));
if (!term_addr)
term_addr = pn_terminus_get_address(qd_link_source(link));
if (term_addr) {
qd_composed_field_t *to_override = qd_compose_subfield(0);
qd_compose_insert_string(to_override, term_addr);
qd_message_set_to_override_annotation(msg, to_override);
int phase = qdr_link_phase(rlink);
if (phase != 0)
qd_message_set_phase_annotation(msg, phase);
}
delivery = qdr_link_deliver(rlink, msg, ingress_iter, pn_delivery_settled(pnd), link_exclusions);
}
if (delivery) {
if (pn_delivery_settled(pnd))
pn_delivery_settle(pnd);
else {
pn_delivery_set_context(pnd, delivery);
qdr_delivery_set_context(delivery, pnd);
qdr_delivery_incref(delivery);
}
} else {
//
// The message is now and will always be unroutable because there is no address.
//
pn_link_flow(pn_link, 1);
pn_delivery_update(pnd, PN_REJECTED);
pn_delivery_settle(pnd);
qd_message_free(msg);
}
//
// Rules for delivering messages:
//
// For addressed (non-anonymous) links:
// to-override must be set (done in the core?)
// uses qdr_link_deliver to hand over to the core
//
// For anonymous links:
// If there's a to-override in the annotations, use that address
// Or, use the 'to' field in the message properties
//
} else {
//
// Message is invalid. Reject the message and don't involve the router core.
//
pn_link_flow(pn_link, 1);
pn_delivery_update(pnd, PN_REJECTED);
pn_delivery_settle(pnd);
qd_message_free(msg);
}
}
