Built some system tests

Testing the retrieve remote file area using kademlia

main/main.c

@@ -112,6 +112,7 @@ int main(int argc, char** argv) {
 		break;
 	case(GET):
 		//ipfs_exporter_get(argc, argv);
+		//break;
 	case (CAT):
 		ipfs_exporter_object_cat(argc, argv);
 		break;

routing/k_routing.c

@@ -98,12 +98,13 @@ int ipfs_routing_kademlia_bootstrap(struct s_ipfs_routing* routing) {
 }
 
 struct s_ipfs_routing* ipfs_routing_new_kademlia(struct IpfsNode* local_node, struct RsaPrivateKey* private_key, struct Stream* stream) {
-	char* kademlia_id = NULL;
+	char kademlia_id[21];
-	// generate kademlia compatible id by getting last 20 chars of peer id
+	// generate kademlia compatible id by getting first 20 chars of peer id
 	if (local_node->identity->peer_id == NULL || strlen(local_node->identity->peer_id) < 20) {
 		return NULL;
 	}
-	kademlia_id = &local_node->identity->peer_id[strlen(local_node->identity->peer_id)-20];
+	strncpy(kademlia_id, local_node->identity->peer_id, 20);
+	kademlia_id[20] = 0;
 	struct s_ipfs_routing* routing = (struct s_ipfs_routing*)malloc(sizeof(struct s_ipfs_routing));
 	if (routing != NULL) {
 		routing->local_node = local_node;

test/routing/test_supernode.h

@@ -9,6 +9,7 @@
 #include "libp2p/utils/linked_list.h"
 #include "libp2p/peer/peerstore.h"
 #include "libp2p/peer/providerstore.h"
+#include "libp2p/crypto/encoding/base58.h"
 
 void stop_kademlia(void);
 
@@ -45,6 +46,101 @@ void* start_daemon(void* path) {
 	return NULL;
 }
 
+int test_routing_supernode_get_remote_value() {
+	// a remote machine has a file. Let's see if we can get it.
+	// the key is QmXQDbRPsbGdtvDwWvXVXb9TwUTNMcGNfWWnA9oSJJBi5n, which is the email.txt from jmjatlanta.com
+	int retVal = 0;
+	struct FSRepo* fs_repo = NULL;
+	struct IpfsNode* ipfs_node = NULL;
+	struct Libp2pPeer this_peer;
+	struct Stream* stream = NULL;
+	const unsigned char* orig_multihash = (unsigned char*)"QmXQDbRPsbGdtvDwWvXVXb9TwUTNMcGNfWWnA9oSJJBi5n";
+	size_t hash_size = 100;
+	unsigned char hash[hash_size];
+	unsigned char* hash_ptr = &hash[0];
+	struct Libp2pVector* multiaddresses;
+	struct MultiAddress* addr = NULL;
+	char* ip = NULL;
+	struct SessionContext context;
+	unsigned char* results = NULL;
+	size_t results_size = 0;
+	struct Node* node;
+
+	// unencode the base58
+	if (!libp2p_crypto_encoding_base58_decode(orig_multihash, strlen((char*)orig_multihash), &hash_ptr, &hash_size))
+		goto exit;
+
+	// fire things up
+	if (!drop_build_and_open_repo("/tmp/.ipfs", &fs_repo))
+		goto exit;
+
+	ipfs_node = (struct IpfsNode*)malloc(sizeof(struct IpfsNode));
+	ipfs_node->mode = MODE_ONLINE;
+	ipfs_node->identity = fs_repo->config->identity;
+	ipfs_node->repo = fs_repo;
+	ipfs_node->providerstore = libp2p_providerstore_new();
+	ipfs_node->peerstore = libp2p_peerstore_new();
+	// add the local peer to the peerstore
+	this_peer.id = fs_repo->config->identity->peer_id;
+	this_peer.id_size = strlen(fs_repo->config->identity->peer_id);
+	this_peer.addr_head = libp2p_utils_linked_list_new();
+	this_peer.addr_head->item = multiaddress_new_from_string("/ip4/127.0.0.1/tcp/4001");
+	libp2p_peerstore_add_peer(ipfs_node->peerstore, &this_peer);
+	ipfs_node->routing = ipfs_routing_new_kademlia(ipfs_node, &fs_repo->config->identity->private_key, stream);
+
+	if (ipfs_node->routing == NULL)
+		goto exit;
+
+	// ask the network who can provide this
+	if (!ipfs_node->routing->FindProviders(ipfs_node->routing, (char*)hash, hash_size, &multiaddresses))
+		goto exit;
+
+	// get the file
+	for(int i = 0; i < multiaddresses->total; i++) {
+		addr = (struct MultiAddress*) libp2p_utils_vector_get(multiaddresses, i);
+		if (multiaddress_is_ip4(addr)) {
+			break;
+		}
+		addr = NULL;
+	}
+
+	if (addr == NULL)
+		goto exit;
+
+	// Connect to server
+	multiaddress_get_ip_address(addr, &ip);
+	struct Stream* file_stream = libp2p_net_multistream_connect(ip, multiaddress_get_ip_port(addr));
+
+	if (file_stream == NULL)
+		goto exit;
+
+	context.insecure_stream = file_stream;
+	context.default_stream = file_stream;
+	// Switch from multistream to NodeIO
+	if (!libp2p_nodeio_upgrade_stream(&context))
+		goto exit;
+
+	// Ask for file
+	if (!libp2p_nodeio_get(&context, hash, hash_size, &results, &results_size))
+		goto exit;
+
+	if (!ipfs_node_protobuf_decode(results, results_size, &node))
+		goto exit;
+
+	//we got it
+	if (node->data_size < 100)
+		goto exit;
+	// make sure we got what we should have gotten
+	// clean up
+	retVal = 1;
+	exit:
+	if (fs_repo != NULL)
+		ipfs_repo_fsrepo_free(fs_repo);
+	if (ipfs_node != NULL)
+		free(ipfs_node);
+	return retVal;
+}
+
 int test_routing_supernode_get_value() {
 	int retVal = 0;
 	struct FSRepo* fs_repo = NULL;

test/testit.c

@@ -58,6 +58,7 @@ const char* names[] = {
 		"test_merkledag_add_node_with_links",
 		"test_resolver_get",
 		"test_routing_supernode_get_value",
+		"test_routing_supernode_get_remote_value",
 		"test_unixfs_encode_decode",
 		"test_unixfs_encode_smallfile",
 		"test_ping",
@@ -96,6 +97,7 @@ int (*funcs[])(void) = {
 		test_merkledag_add_node_with_links,
 		test_resolver_get,
 		test_routing_supernode_get_value,
+		test_routing_supernode_get_remote_value,
 		test_unixfs_encode_decode,
 		test_unixfs_encode_smallfile,
 		test_ping,