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authorMauro Sardara <msardara@cisco.com>2019-05-19 11:31:41 +0200
committerMauro Sardara <msardara@cisco.com>2019-05-19 16:03:13 +0200
commit2626851f4846829e7cfa993a75dfbeab17fc9371 (patch)
treee0ce042c8993f524f57ee6bdcc2f6c00cc166505 /apps/http-proxy
parentfb3e2a7531099857d19dba2f244fb7d0ca6b828d (diff)
[HICN-201] Do not reply to interests requesting non-existent data.
Change-Id: I7acd1d86e71f3670068b102bd24cd475d8092fb1 Signed-off-by: Mauro Sardara <msardara@cisco.com>
Diffstat (limited to 'apps/http-proxy')
-rw-r--r--apps/http-proxy/src/IcnReceiver.cc39
-rw-r--r--apps/http-proxy/src/IcnReceiver.h11
2 files changed, 40 insertions, 10 deletions
diff --git a/apps/http-proxy/src/IcnReceiver.cc b/apps/http-proxy/src/IcnReceiver.cc
index fc6837a2c..d4e922c11 100644
--- a/apps/http-proxy/src/IcnReceiver.cc
+++ b/apps/http-proxy/src/IcnReceiver.cc
@@ -126,20 +126,37 @@ void AsyncConsumerProducer::doReceive() {
void AsyncConsumerProducer::manageIncomingInterest(
core::Name& name, core::Packet::MemBufPtr& packet, utils::MemBuf* payload) {
- // auto seg = name.getSuffix();
+ auto seg = name.getSuffix();
name.setSuffix(0);
auto _it = chunk_number_map_.find(name);
auto _end = chunk_number_map_.end();
if (_it != _end) {
- return;
+ if (_it->second.second) {
+ // Content is in production
+ return;
+ }
+
+ if (seg >= _it->second.first) {
+ TRANSPORT_LOGD(
+ "Ignoring interest with name %s for a content object which does not "
+ "exist. (Request: %u, max: %u)",
+ name.toString().c_str(), (uint32_t)seg, (uint32_t)_it->second.first);
+ return;
+ }
}
bool is_mpd =
HTTPMessageFastParser::isMpdRequest(payload->data(), payload->length());
- chunk_number_map_.emplace(name, 0);
- response_name_queue_.emplace(std::move(name), is_mpd ? 1000 : 10000);
+ auto pair = chunk_number_map_.emplace(name, std::pair<uint32_t, bool>(0, 0));
+ if (!pair.second) {
+ pair.first->second.first = 0;
+ }
+
+ pair.first->second.second = true;
+
+ response_name_queue_.emplace(std::move(name), is_mpd ? 1000 : 100000);
connector_.send(payload, [packet = std::move(packet)]() {});
}
@@ -166,17 +183,23 @@ void AsyncConsumerProducer::publishContent(const uint8_t* data,
const interface::Name& name = options.getName();
- start_suffix = chunk_number_map_[name];
+ auto it = chunk_number_map_.find(name);
+ if (it == chunk_number_map_.end()) {
+ std::cerr << "Aborting due to response not found in ResposeInfo map."
+ << std::endl;
+ abort();
+ }
+
+ start_suffix = it->second.first;
if (headers) {
request_counter_++;
}
-
- chunk_number_map_[name] +=
+ it->second.first +=
producer_socket_.produce(name, data, size, is_last, start_suffix);
if (is_last) {
- chunk_number_map_.erase(name);
+ it->second.second = false;
response_name_queue_.pop();
}
}
diff --git a/apps/http-proxy/src/IcnReceiver.h b/apps/http-proxy/src/IcnReceiver.h
index 61ca4333a..ea4eeb010 100644
--- a/apps/http-proxy/src/IcnReceiver.h
+++ b/apps/http-proxy/src/IcnReceiver.h
@@ -28,6 +28,10 @@
namespace transport {
class AsyncConsumerProducer {
+ using SegmentProductionPair = std::pair<uint32_t, bool>;
+ using ResponseInfoMap = std::unordered_map<core::Name, SegmentProductionPair>;
+ using RequestQueue = std::queue<interface::PublicationOptions>;
+
public:
explicit AsyncConsumerProducer(const std::string& prefix,
std::string& ip_address, std::string& port,
@@ -63,8 +67,11 @@ class AsyncConsumerProducer {
// std::unordered_map<core::Name, std::shared_ptr<ATSConnector>>
// connection_map_;
ATSConnector connector_;
- std::unordered_map<core::Name, uint32_t> chunk_number_map_;
- std::queue<interface::PublicationOptions> response_name_queue_;
+
+ // ResponseInfoMap --> max_seq_number + bool indicating whether request is in
+ // production
+ ResponseInfoMap chunk_number_map_;
+ RequestQueue response_name_queue_;
};
} // namespace transport