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;
}
static char *test_tracemask(void *context)
{
qd_bitmask_t *bm = NULL;
qd_tracemask_t *tm = qd_tracemask();
qd_buffer_list_t list;
static char error[1024];
error[0] = 0;
qd_iterator_set_address(false, "0", "ROUTER");
qd_tracemask_add_router(tm, "amqp:/_topo/0/Router.A", 0);
qd_tracemask_add_router(tm, "amqp:/_topo/0/Router.B", 1);
qd_tracemask_add_router(tm, "amqp:/_topo/0/Router.C", 2);
qd_tracemask_add_router(tm, "amqp:/_topo/0/Router.D", 3);
qd_tracemask_add_router(tm, "amqp:/_topo/0/Router.E", 4);
qd_tracemask_add_router(tm, "amqp:/_topo/0/Router.F", 5);
qd_tracemask_set_link(tm, 0, 4);
qd_tracemask_set_link(tm, 3, 10);
qd_tracemask_set_link(tm, 4, 3);
qd_tracemask_set_link(tm, 5, 2);
qd_composed_field_t *comp = qd_compose_subfield(0);
qd_compose_start_list(comp);
qd_compose_insert_string(comp, "0/Router.A");
qd_compose_insert_string(comp, "0/Router.D");
qd_compose_insert_string(comp, "0/Router.E");
qd_compose_end_list(comp);
DEQ_INIT(list);
qd_compose_take_buffers(comp, &list);
qd_compose_free(comp);
int length = 0;
qd_buffer_t *buf = DEQ_HEAD(list);
while (buf) {
length += qd_buffer_size(buf);
buf = DEQ_NEXT(buf);
}
qd_iterator_t *iter = qd_iterator_buffer(DEQ_HEAD(list), 0, length, ITER_VIEW_ALL);
qd_parsed_field_t *pf = qd_parse(iter);
qd_iterator_free(iter);
int ingress = -1;
bm = qd_tracemask_create(tm, pf, &ingress);
if (qd_bitmask_cardinality(bm) != 3) {
sprintf(error, "Expected cardinality of 3, got %d", qd_bitmask_cardinality(bm));
goto cleanup;
}
if (ingress != 0) {
sprintf(error, "(A) Expected ingress index of 0, got %d", ingress);
goto cleanup;
}
int total = 0;
int bit, c;
for (QD_BITMASK_EACH(bm, bit, c)) {
total += bit;
}
if (total != 17) {
sprintf(error, "Expected total bit value of 17, got %d", total);
goto cleanup;
}
qd_bitmask_free(bm);
bm = 0;
qd_tracemask_del_router(tm, 3);
qd_tracemask_remove_link(tm, 0);
ingress = -1;
bm = qd_tracemask_create(tm, pf, &ingress);
qd_parse_free(pf);
pf = 0;
if (qd_bitmask_cardinality(bm) != 1) {
sprintf(error, "Expected cardinality of 1, got %d", qd_bitmask_cardinality(bm));
goto cleanup;
}
if (ingress != 0) {
sprintf(error, "(B) Expected ingress index of 0, got %d", ingress);
goto cleanup;
}
total = 0;
for (QD_BITMASK_EACH(bm, bit, c)) {
total += bit;
}
if (total != 3) {
sprintf(error, "Expected total bit value of 3, got %d", total);
// fallthrough
}
cleanup:
qd_parse_free(pf);
qd_tracemask_free(tm);
qd_bitmask_free(bm);
for (qd_buffer_t *buf = DEQ_HEAD(list); buf; buf = DEQ_HEAD(list)) {
DEQ_REMOVE_HEAD(list);
qd_buffer_free(buf);
}
return *error ? error : 0;
}
static qd_iterator_t *router_annotate_message(qd_router_t *router,
qd_parsed_field_t *in_ma,
qd_message_t *msg,
qd_bitmask_t **link_exclusions,
bool strip_inbound_annotations)
{
qd_iterator_t *ingress_iter = 0;
qd_parsed_field_t *trace = 0;
qd_parsed_field_t *ingress = 0;
qd_parsed_field_t *to = 0;
qd_parsed_field_t *phase = 0;
*link_exclusions = 0;
if (in_ma && !strip_inbound_annotations) {
uint32_t count = qd_parse_sub_count(in_ma);
bool done = false;
for (uint32_t idx = 0; idx < count && !done; idx++) {
qd_parsed_field_t *sub = qd_parse_sub_key(in_ma, idx);
if (!sub)
continue;
qd_iterator_t *iter = qd_parse_raw(sub);
if (!iter)
continue;
if (qd_iterator_equal(iter, (unsigned char*) QD_MA_TRACE)) {
trace = qd_parse_sub_value(in_ma, idx);
} else if (qd_iterator_equal(iter, (unsigned char*) QD_MA_INGRESS)) {
ingress = qd_parse_sub_value(in_ma, idx);
} else if (qd_iterator_equal(iter, (unsigned char*) QD_MA_TO)) {
to = qd_parse_sub_value(in_ma, idx);
} else if (qd_iterator_equal(iter, (unsigned char*) QD_MA_PHASE)) {
phase = qd_parse_sub_value(in_ma, idx);
}
done = trace && ingress && to && phase;
}
}
//
// QD_MA_TRACE:
// If there is a trace field, append this router's ID to the trace.
// If the router ID is already in the trace the msg has looped.
//
qd_composed_field_t *trace_field = qd_compose_subfield(0);
qd_compose_start_list(trace_field);
if (trace) {
if (qd_parse_is_list(trace)) {
//
// Create a link-exclusion map for the items in the trace. This map will
// contain a one-bit for each link that leads to a neighbor router that
// the message has already passed through.
//
*link_exclusions = qd_tracemask_create(router->tracemask, trace);
//
// Append this router's ID to the trace.
//
uint32_t idx = 0;
qd_parsed_field_t *trace_item = qd_parse_sub_value(trace, idx);
while (trace_item) {
qd_iterator_t *iter = qd_parse_raw(trace_item);
qd_iterator_reset_view(iter, ITER_VIEW_ALL);
qd_compose_insert_string_iterator(trace_field, iter);
idx++;
trace_item = qd_parse_sub_value(trace, idx);
}
}
}
qd_compose_insert_string(trace_field, node_id);
qd_compose_end_list(trace_field);
qd_message_set_trace_annotation(msg, trace_field);
//
// QD_MA_TO:
// Preserve the existing value.
//
if (to) {
qd_composed_field_t *to_field = qd_compose_subfield(0);
qd_compose_insert_string_iterator(to_field, qd_parse_raw(to));
qd_message_set_to_override_annotation(msg, to_field);
}
//
// QD_MA_PHASE:
// Preserve the existing value.
//
if (phase) {
int phase_val = qd_parse_as_int(phase);
qd_message_set_phase_annotation(msg, phase_val);
}
//
// QD_MA_INGRESS:
// If there is no ingress field, annotate the ingress as
// this router else keep the original field.
//
qd_composed_field_t *ingress_field = qd_compose_subfield(0);
if (ingress && qd_parse_is_scalar(ingress)) {
ingress_iter = qd_parse_raw(ingress);
qd_compose_insert_string_iterator(ingress_field, ingress_iter);
} else
qd_compose_insert_string(ingress_field, node_id);
qd_message_set_ingress_annotation(msg, ingress_field);
//
// Return the iterator to the ingress field _if_ it was present.
// If we added the ingress, return NULL.
//
return ingress_iter;
}
/**
* 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);
}
}
