merged changes from RC_1_0

ChangeLog

@@ -38,6 +38,10 @@
 	* almost completely changed the storage interface (for custom storage)
 	* added support for hashing pieces in multiple threads
 
+	* support conditional DHT get
+	* OpenSSL build fixes
+	* fix DHT scrape bug
+
 1.0.3 release
 
 	* python binding build fix for boost-1.57.0

include/libtorrent/torrent_handle.hpp

@@ -1000,7 +1000,7 @@ namespace libtorrent
 		// The priority values are the same as for piece_priority().
 		// 
 		// Whenever a file priority is changed, all other piece priorities are
-		// reset to match the file priorities. In order to maintain sepcial
+		// reset to match the file priorities. In order to maintain special
 		// priorities for particular pieces, piece_priority() has to be called
 		// again for those pieces.
 		// 

src/kademlia/node.cpp

@@ -614,7 +614,7 @@ void node_impl::lookup_peers(sha1_hash const& info_hash, entry& reply
 		}
 
 		reply["BFpe"] = downloaders.to_string();
-		reply["BFse"] = seeds.to_string();
+		reply["BFsd"] = seeds.to_string();
 	}
 	else
 	{
@@ -1230,34 +1230,41 @@ void node_impl::incoming_request(msg const& m, entry& e)
 	else if (strcmp(query, "get") == 0)
 	{
 		key_desc_t msg_desc[] = {
+			{"seq", lazy_entry::int_t, 0, key_desc_t::optional},
 			{"target", lazy_entry::string_t, 20, 0},
 		};
 
 		// k is not used for now
 
 		// attempt to parse the message
-		lazy_entry const* msg_keys[1];
-		if (!verify_message(arg_ent, msg_desc, msg_keys, 1, error_string, sizeof(error_string)))
+		lazy_entry const* msg_keys[2];
+		if (!verify_message(arg_ent, msg_desc, msg_keys, 2, error_string, sizeof(error_string)))
 		{
 			incoming_error(e, error_string);
 			return;
 		}
 
 		m_counters.inc_stats_counter(counters::dht_get_in);
-		sha1_hash target(msg_keys[0]->string_ptr());
+		sha1_hash target(msg_keys[1]->string_ptr());
 
 //		fprintf(stderr, "%s GET target: %s\n"
 //			, msg_keys[1] ? "mutable":"immutable"
 //			, to_hex(target.to_string()).c_str());
 
-		reply["token"] = generate_token(m.addr, msg_keys[0]->string_ptr());
+		reply["token"] = generate_token(m.addr, msg_keys[1]->string_ptr());
 		
 		nodes_t n;
 		// always return nodes as well as peers
 		m_table.find_node(target, n, 0);
 		write_nodes_entry(reply, n);
 
-		dht_immutable_table_t::iterator i = m_immutable_table.find(target);
+		dht_immutable_table_t::iterator i = m_immutable_table.end();
+
+		// if the get has a sequence number it must be for a mutable item
+		// so don't bother searching the immutable table
+		if (!msg_keys[0])
+			i = m_immutable_table.find(target);
+
 		if (i != m_immutable_table.end())
 		{
 			dht_immutable_item const& f = i->second;
@@ -1269,10 +1276,13 @@ void node_impl::incoming_request(msg const& m, entry& e)
 			if (i != m_mutable_table.end())
 			{
 				dht_mutable_item const& f = i->second;
-				reply["v"] = bdecode(f.value, f.value + f.size);
 				reply["seq"] = f.seq;
-				reply["sig"] = std::string(f.sig, f.sig + sizeof(f.sig));
-				reply["k"] = std::string(f.key.bytes, f.key.bytes + sizeof(f.key.bytes));
+				if (!msg_keys[0] || uint64_t(msg_keys[0]->int_value()) < f.seq)
+				{
+					reply["v"] = bdecode(f.value, f.value + f.size);
+					reply["sig"] = std::string(f.sig, f.sig + sizeof(f.sig));
+					reply["k"] = std::string(f.key.bytes, f.key.bytes + sizeof(f.key.bytes));
+				}
 			}
 		}
 	}

src/peer_connection.cpp

@@ -35,9 +35,11 @@ POSSIBILITY OF SUCH DAMAGE.
 #include <boost/bind.hpp>
 #include <boost/cstdint.hpp>
 
-#if defined TORRENT_LOGGING
+#ifdef TORRENT_LOGGING
 #include <stdarg.h> // for va_start, va_end
 #include <stdio.h> // for vsnprintf
+#include "libtorrent/escape_string.hpp"
+#include "libtorrent/socket_io.hpp"
 #endif
 
 #include "libtorrent/peer_connection.hpp"
@@ -73,9 +75,8 @@ POSSIBILITY OF SUCH DAMAGE.
 #include <set>
 #endif
 
-#if defined TORRENT_LOGGING
-#include "libtorrent/escape_string.hpp"
-#include "libtorrent/socket_io.hpp"
+#ifdef TORRENT_USE_OPENSSL
+#include <openssl/rand.h>
 #endif
 
 //#define TORRENT_CORRUPT_DATA

src/session_impl.cpp

@@ -147,6 +147,7 @@ namespace
 #ifdef TORRENT_USE_OPENSSL
 
 #include <openssl/crypto.h>
+#include <openssl/rand.h>
 
 namespace
 {

src/torrent.cpp

@@ -90,6 +90,7 @@ POSSIBILITY OF SUCH DAMAGE.
 #ifdef TORRENT_USE_OPENSSL
 #include "libtorrent/ssl_stream.hpp"
 #include <boost/asio/ssl/context.hpp>
+#include <openssl/rand.h>
 #if BOOST_VERSION >= 104700
 #include <boost/asio/ssl/verify_context.hpp>
 #endif // BOOST_VERSION

test/test_dht.cpp

@@ -589,7 +589,7 @@ int test_main()
 		{"y", lazy_entry::string_t, 1, 0},
 		{"r", lazy_entry::dict_t, 0, key_desc_t::parse_children},
 			{"BFpe", lazy_entry::string_t, 256, 0},
-			{"BFse", lazy_entry::string_t, 256, 0},
+			{"BFsd", lazy_entry::string_t, 256, 0},
 			{"id", lazy_entry::string_t, 20, key_desc_t::last_child},
 	};
 
@@ -810,7 +810,7 @@ int test_main()
 
 		send_dht_request(node, "get", source, &response, "10", 0
 			, 0, no, 0, (char*)&target_id[0]
-			, 0, false, false, std::string(), std::string(), 64);
+			, 0, false, false, std::string(), std::string());
 
 		key_desc_t desc[] =
 		{
@@ -866,7 +866,7 @@ int test_main()
 
 		send_dht_request(node, "get", source, &response, "10", 0
 			, 0, no, 0, (char*)&target_id[0]
-			, 0, false, false, std::string(), std::string(), 64);
+			, 0, false, false, std::string(), std::string());
 
 		fprintf(stderr, "target_id: %s\n"
 			, to_hex(target_id.to_string()).c_str());
@@ -938,6 +938,30 @@ int test_main()
 			TEST_ERROR(error_string);
 		}
 
+		// === test conditional get ===
+
+		send_dht_request(node, "get", source, &response, "10", 0
+			, 0, no, 0, (char*)&target_id[0]
+			, 0, false, false, std::string(), std::string(), seq-1);
+
+		{
+			lazy_entry const* r = response.dict_find_dict("r");
+			TEST_CHECK(r->dict_find("v"));
+			TEST_CHECK(r->dict_find("k"));
+			TEST_CHECK(r->dict_find("sig"));
+		}
+
+		send_dht_request(node, "get", source, &response, "10", 0
+			, 0, no, 0, (char*)&target_id[0]
+			, 0, false, false, std::string(), std::string(), seq);
+
+		{
+			lazy_entry const* r = response.dict_find_dict("r");
+			TEST_CHECK(!r->dict_find("v"));
+			TEST_CHECK(!r->dict_find("k"));
+			TEST_CHECK(!r->dict_find("sig"));
+		}
+
 		// === test CAS put ===
 
 		// this is the sequence number we expect to be there