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#include "DHTRoutingTableSerializer.h"
#include <cstring>
#include <sstream>
#include <iostream>
#include <cppunit/extensions/HelperMacros.h>
#include "Exception.h"
#include "util.h"
#include "DHTNode.h"
#include "array_fun.h"
#include "DHTConstants.h"
#include "bittorrent_helper.h"
#include "a2netcompat.h"
namespace aria2 {
class DHTRoutingTableSerializerTest:public CppUnit::TestFixture {
CPPUNIT_TEST_SUITE(DHTRoutingTableSerializerTest);
CPPUNIT_TEST(testSerialize);
CPPUNIT_TEST_SUITE_END();
public:
void setUp() {}
void tearDown() {}
void testSerialize();
};
CPPUNIT_TEST_SUITE_REGISTRATION(DHTRoutingTableSerializerTest);
void DHTRoutingTableSerializerTest::testSerialize()
{
SharedHandle<DHTNode> localNode(new DHTNode());
SharedHandle<DHTNode> nodesSrc[3];
for(size_t i = 0; i < A2_ARRAY_LEN(nodesSrc); ++i) {
nodesSrc[i].reset(new DHTNode());
nodesSrc[i]->setIPAddress("192.168.0."+util::uitos(i+1));
nodesSrc[i]->setPort(6881+i);
}
nodesSrc[1]->setIPAddress("non-numerical-name");
std::vector<SharedHandle<DHTNode> > nodes(vbegin(nodesSrc), vend(nodesSrc));
DHTRoutingTableSerializer s;
s.setLocalNode(localNode);
s.setNodes(nodes);
std::stringstream ss;
s.serialize(ss);
char zero[16];
memset(zero, 0, sizeof(zero));
char buf[20];
// header
ss.read(buf, 8);
// magic
CPPUNIT_ASSERT((char)0xa1 == buf[0]);
CPPUNIT_ASSERT((char)0xa2 == buf[1]);
// format ID
CPPUNIT_ASSERT((char)0x02 == buf[2]);
// reserved
CPPUNIT_ASSERT((char)0x00 == buf[3]);
CPPUNIT_ASSERT((char)0x00 == buf[4]);
CPPUNIT_ASSERT((char)0x00 == buf[5]);
// version
CPPUNIT_ASSERT((char)0x00 == buf[6]);
CPPUNIT_ASSERT((char)0x03 == buf[7]);
// time
ss.read(buf, 8);
time_t time;
uint64_t timebuf;
memcpy(&timebuf, buf, sizeof(timebuf));
time = ntoh64(timebuf);
std::cerr << time << std::endl;
// localnode
// 8bytes reserved
ss.read(buf, 8);
CPPUNIT_ASSERT(memcmp(zero, buf, 8) == 0);
// localnode ID
ss.read(buf, DHT_ID_LENGTH);
CPPUNIT_ASSERT(memcmp(localNode->getID(), buf, DHT_ID_LENGTH) == 0);
// 4bytes reserved
ss.read(buf, 4);
CPPUNIT_ASSERT(memcmp(zero, buf, 4) == 0);
// number of nodes saved
ss.read(buf, 4);
uint32_t numNodes;
memcpy(&numNodes, buf, sizeof(numNodes));
numNodes = ntohl(numNodes);
CPPUNIT_ASSERT_EQUAL((uint32_t)3, numNodes);
// 4bytes reserved
ss.read(buf, 4);
CPPUNIT_ASSERT(memcmp(zero, buf, 4) == 0);
// node[0]
// 1byte compatc peer format length
{
uint8_t len;
ss >> len;
CPPUNIT_ASSERT_EQUAL((uint8_t)6, len);
}
// 7bytes reserved
ss.read(buf, 7);
CPPUNIT_ASSERT(memcmp(zero, buf, 7) == 0);
// 6bytes compact peer info
ss.read(buf, 6);
{
std::pair<std::string, uint16_t> peer =
bittorrent::unpackcompact(reinterpret_cast<const unsigned char*>(buf));
CPPUNIT_ASSERT_EQUAL(std::string("192.168.0.1"), peer.first);
CPPUNIT_ASSERT_EQUAL((uint16_t)6881, peer.second);
}
// 2bytes reserved
ss.read(buf, 2);
CPPUNIT_ASSERT(memcmp(zero, buf, 2) == 0);
// 16bytes reserved
ss.read(buf, 16);
CPPUNIT_ASSERT(memcmp(zero, buf, 16) == 0);
// localnode ID
ss.read(buf, DHT_ID_LENGTH);
CPPUNIT_ASSERT(memcmp(nodes[0]->getID(), buf, DHT_ID_LENGTH) == 0);
// 4bytes reserved
ss.read(buf, 4);
CPPUNIT_ASSERT(memcmp(zero, buf, 4) == 0);
// node[1]
// 1byte compatc peer format length
{
uint8_t len;
ss >> len;
CPPUNIT_ASSERT_EQUAL((uint8_t)6, len);
}
// 7bytes reserved
ss.read(buf, 7);
CPPUNIT_ASSERT(memcmp(zero, buf, 7) == 0);
// 6bytes compact peer info
ss.read(buf, 6);
// zero filled because node[1]'s hostname is not numerical form
// deserializer should skip this entry
CPPUNIT_ASSERT(memcmp(zero, buf, 6) == 0);
// 2bytes reserved
ss.read(buf, 2);
CPPUNIT_ASSERT(memcmp(zero, buf, 2) == 0);
// 16bytes reserved
ss.read(buf, 16);
CPPUNIT_ASSERT(memcmp(zero, buf, 16) == 0);
// localnode ID
ss.read(buf, DHT_ID_LENGTH);
CPPUNIT_ASSERT(memcmp(nodes[1]->getID(), buf, DHT_ID_LENGTH) == 0);
// 4bytes reserved
ss.read(buf, 4);
CPPUNIT_ASSERT(memcmp(zero, buf, 4) == 0);
// node[2]
// 1byte compatc peer format length
{
uint8_t len;
ss >> len;
CPPUNIT_ASSERT_EQUAL((uint8_t)6, len);
}
// 7bytes reserved
ss.read(buf, 7);
CPPUNIT_ASSERT(memcmp(zero, buf, 7) == 0);
// 6bytes compact peer info
ss.read(buf, 6);
{
std::pair<std::string, uint16_t> peer =
bittorrent::unpackcompact(reinterpret_cast<const unsigned char*>(buf));
CPPUNIT_ASSERT_EQUAL(std::string("192.168.0.3"), peer.first);
CPPUNIT_ASSERT_EQUAL((uint16_t)6883, peer.second);
}
// 2bytes reserved
ss.read(buf, 2);
CPPUNIT_ASSERT(memcmp(zero, buf, 2) == 0);
// 16bytes reserved
ss.read(buf, 16);
CPPUNIT_ASSERT(memcmp(zero, buf, 16) == 0);
// localnode ID
ss.read(buf, DHT_ID_LENGTH);
CPPUNIT_ASSERT(memcmp(nodes[2]->getID(), buf, DHT_ID_LENGTH) == 0);
// 4bytes reserved
ss.read(buf, 4);
CPPUNIT_ASSERT(memcmp(zero, buf, 4) == 0);
// check to see stream ends
ss.read(buf, 1);
CPPUNIT_ASSERT_EQUAL((std::streamsize)0, ss.gcount());
CPPUNIT_ASSERT(ss.eof());
}
} // namespace aria2
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