Attempting to bitswap from previously unknown node

core/api.c

@@ -271,64 +271,6 @@ size_t boundary_size(char *str, char *boundary, size_t limit)
 	return 0;
 }
 
-/**
- * function to find and read the object.
- * @param path is the ipfs address, obj is a pointer to be allocated and will be the return of the data, size is a pointer to return the data length.
- * @returns 1 when success is 0 when failure.
- */
-int get_object(struct IpfsNode* local_node, char *path, unsigned char **obj, size_t *size)
-{
-	FILE* memstream_file = NULL;
-	char* memstream_char = NULL;
-	size_t memstream_size = 0;
-	struct Cid* cid = NULL;
-
-	// convert hash to cid
-	if ( ipfs_cid_decode_hash_from_base58((unsigned char*)path, strlen(path), &cid) == 0) {
-		return 0;
-	}
-
-	// find block
-	struct HashtableNode* read_node = NULL;
-	if (!ipfs_exporter_get_node(local_node, cid->hash, cid->hash_length, &read_node)) {
-		ipfs_cid_free(cid);
-		return 0;
-	}
-
-	// open a memory stream
-	memstream_file = open_memstream(&memstream_char, &memstream_size);
-	if (memstream_file == NULL) {
-		libp2p_logger_error("api", "get_object: Unable to open a memory stream.\n");
-		ipfs_cid_free(cid);
-		return 0;
-	}
-
-	// throw everything (including links) into the memory stream
-	ipfs_exporter_cat_node(read_node, local_node, memstream_file);
-
-	fclose(memstream_file);
-
-	// no longer need these
-	ipfs_cid_free(cid);
-	ipfs_hashtable_node_free(read_node);
-
-	*size = memstream_size;
-	*obj = (unsigned char*)memstream_char;
-
-	return 1;
-}
-
-/**
- * send object data as an http response.
- * @param socket, object pointer and size.
- * @returns 1 when success is 0 when failure.
- */
-int send_object(int socket, unsigned char *obj, size_t size)
-{
-	// TODO: implement.
-	return 0; // fail.
-}
-
 struct ApiConnectionParam {
 	int index;
 	struct IpfsNode* this_node;

core/http_request.c

@@ -142,6 +142,68 @@ int ipfs_core_http_process_object(struct IpfsNode* local_node, struct HttpReques
 	return retVal;
 }
 
+/***
+ * process dht commands
+ * @param local_node the context
+ * @param request the request
+ * @param response where to put the results
+ * @returns true(1) on success, false(0) otherwise
+ */
+int ipfs_core_http_process_dht(struct IpfsNode* local_node, struct HttpRequest* request, char** response) {
+	int failedCount = 0;
+	if (strcmp(request->sub_command, "provide") == 0) {
+		// do a dht provide
+		for (int i = 0; i < request->arguments->total; i++) {
+			char* hash = (char*)libp2p_utils_vector_get(request->arguments, i);
+			struct Cid* cid;
+			if (!ipfs_cid_decode_hash_from_base58(hash, strlen(hash), &cid)) {
+				failedCount++;
+				continue;
+			}
+			if (!ipfs_routing_online_provide(local_node->routing, cid->hash, cid->hash_length)) {
+				failedCount++;
+				continue;
+			}
+		}
+		if (!failedCount) {
+			// complete success
+			// TODO: do the right thing
+			*response = (char*) malloc(1024);
+			snprintf(*response, 1024,  "{\n\t\"ID\": \"<string>\"\n" \
+					"\t\"Type\": \"<int>\"\n"
+					"\t\"Responses\": [\n"
+					"\t\t{\n"
+					"\t\t\t\"ID\": \"<string>\"\n"
+					"\t\t\t\"Addrs\": [\n"
+					"\t\t\t\t\"<object>\"\n"
+					"\t\t\t]\n"
+					"\t\t}\n"
+					"\t]\n"
+					"\t\"Extra\": \"<string>\"\n"
+					"}\n"
+					);
+		} else {
+			// at least some failed
+			// TODO: do the right thing
+			*response = (char*) malloc(1024);
+			snprintf(*response, 1024,  "{\n\t\"ID\": \"<string>\",\n" \
+					"\t\"Type\": \"<int>\",\n"
+					"\t\"Responses\": [\n"
+					"\t\t{\n"
+					"\t\t\t\"ID\": \"<string>\",\n"
+					"\t\t\t\"Addrs\": [\n"
+					"\t\t\t\t\"<object>\"\n"
+					"\t\t\t]\n"
+					"\t\t}\n"
+					"\t],\n"
+					"\t\"Extra\": \"<string>\"\n"
+					"}\n"
+					);
+		}
+	}
+	return failedCount < request->arguments->total;
+}
+
 /***
  * Process the parameters passed in from an http request
  * @param local_node the context
@@ -158,6 +220,8 @@ int ipfs_core_http_request_process(struct IpfsNode* local_node, struct HttpReque
 		retVal = ipfs_core_http_process_name(local_node, request, response);
 	} else if (strcmp(request->command, "object") == 0) {
 		retVal = ipfs_core_http_process_object(local_node, request, response);
+	} else if (strcmp(request->command, "dht") == 0) {
+		retVal = ipfs_core_http_process_dht(local_node, request, response);
 	}
 	return retVal;
 }

routing/offline.c

@@ -3,7 +3,9 @@
 #include <ipfs/routing/routing.h>
 #include <ipfs/util/errs.h>
 #include "libp2p/crypto/rsa.h"
+#include "libp2p/utils/logger.h"
 #include "libp2p/record/record.h"
+#include "ipfs/core/http_request.h"
 #include "ipfs/datastore/ds_helper.h"
 #include "ipfs/merkledag/merkledag.h"
 #include "ipfs/routing/routing.h"
@@ -86,9 +88,38 @@ int ipfs_routing_offline_find_peer (ipfs_routing* offlineRouting, const unsigned
     return ErrOffline;
 }
 
-int ipfs_routing_offline_provide (ipfs_routing* offlineRouting, const unsigned char *cid, size_t cid_size)
+/**
+ * Attempt to publish that this node can provide a value
+ * @param offlineRouting the context
+ * @param incoming_hash the hash (in binary form)
+ * @param incoming_hash_size the length of the hash array
+ * @returns true(1) on success, false(0) otherwise
+ */
+int ipfs_routing_offline_provide (ipfs_routing* offlineRouting, const unsigned char *incoming_hash, size_t incoming_hash_size)
 {
-    return ErrOffline;
+	if (offlineRouting->local_node->mode == MODE_API_AVAILABLE) {
+		//TODO: publish this through the api
+		unsigned char buffer[256];
+		if (!ipfs_cid_hash_to_base58(incoming_hash, incoming_hash_size, &buffer[0], 256)) {
+			libp2p_logger_error("offline", "Unable to convert hash to its Base58 representation.\n");
+			return 0;
+		}
+
+		char* response;
+		struct HttpRequest* request = ipfs_core_http_request_new();
+		request->command = "dht";
+		request->sub_command = "provide";
+		request->arguments = libp2p_utils_vector_new(1);
+		libp2p_utils_vector_add(request->arguments, buffer);
+		if (!ipfs_core_http_request_get(offlineRouting->local_node, request, &response)) {
+			libp2p_logger_error("offline", "Unable to call API for dht publish.\n");
+			return 0;
+		}
+		fprintf(stdout, "%s", response);
+		return 1;
+	}
+
+    return 0;
 }
 
 int ipfs_routing_offline_ping (ipfs_routing* offlineRouting, struct Libp2pPeer* peer)

test/routing/test_routing.h

@@ -448,8 +448,17 @@ int test_routing_provide() {
  */
 int test_routing_retrieve_file_third_party() {
 	int retVal = 0;
+	char* ipfs_path_1 = "/tmp/ipfs_1", *ipfs_path_2 = "/tmp/ipfs_2", *ipfs_path_3 = "/tmp/ipfs_3";
+	char* peer_id_1 = NULL, *peer_id_2 = NULL, *peer_id_3 = NULL;
+	struct IpfsNode* ipfs_node2 = NULL, *ipfs_node3 = NULL;
+	pthread_t thread1, thread2, thread3;
+	int thread1_started = 0, thread2_started = 0, thread3_started = 0;
+	struct MultiAddress* ma_peer1 = NULL;
+	struct Libp2pVector* ma_vector2 = NULL, *ma_vector3 = NULL;
+	struct HashtableNode* node = NULL, *result_node = NULL;
+	char multiaddress_string[255] = "";
+	char hash[256] = "";
 
-	/*
 	libp2p_logger_add_class("online");
 	libp2p_logger_add_class("multistream");
 	libp2p_logger_add_class("null");
@@ -459,88 +468,84 @@ int test_routing_retrieve_file_third_party() {
 	libp2p_logger_add_class("exporter");
 	libp2p_logger_add_class("peer");
 	libp2p_logger_add_class("test_routing");
-	*/
 
 	// clean out repository
-	char* ipfs_path = "/tmp/test1";
-	char* peer_id_1 = NULL, *peer_id_2 = NULL, *peer_id_3 = NULL;
-	struct IpfsNode* ipfs_node2 = NULL, *ipfs_node3 = NULL;
-	pthread_t thread1, thread2;
-	int thread1_started = 0, thread2_started = 0;
-	struct MultiAddress* ma_peer1 = NULL;
-	struct Libp2pVector* ma_vector2 = NULL, *ma_vector3 = NULL;
-	struct HashtableNode* node = NULL, *result_node = NULL;
 
 	// create peer 1
-	drop_and_build_repository(ipfs_path, 4001, NULL, &peer_id_1);
-	char multiaddress_string[255];
+	if (!drop_and_build_repository(ipfs_path_1, 4001, NULL, &peer_id_1))
+		goto exit;
 	sprintf(multiaddress_string, "/ip4/127.0.0.1/tcp/4001/ipfs/%s", peer_id_1);
 	ma_peer1 = multiaddress_new_from_string(multiaddress_string);
 	// start the daemon in a separate thread
 	libp2p_logger_debug("test_routing", "Firing up daemon 1.\n");
-	if (pthread_create(&thread1, NULL, test_daemon_start, (void*)ipfs_path) < 0) {
-		fprintf(stderr, "Unable to start thread 1\n");
+	if (pthread_create(&thread1, NULL, test_daemon_start, (void*)ipfs_path_1) < 0) {
+		libp2p_logger_error("test_routing", "Unable to start thread 1\n");
 		goto exit;
 	}
 	thread1_started = 1;
 
     // wait for everything to start up
-    // JMJ debugging =
     sleep(3);
 
-    // create peer 2
-	ipfs_path = "/tmp/test2";
+    // create peer 2, that will host the file
 	// create a vector to hold peer1's multiaddress so we can connect as a peer
 	ma_vector2 = libp2p_utils_vector_new(1);
 	libp2p_utils_vector_add(ma_vector2, ma_peer1);
-	// note: this destroys some things, as it frees the fs_repo_3:
-	drop_and_build_repository(ipfs_path, 4002, ma_vector2, &peer_id_2);
+	// note: this destroys some things, as it frees the fs_repo:
+	drop_and_build_repository(ipfs_path_2, 4002, ma_vector2, &peer_id_2);
 	multiaddress_free(ma_peer1);
-	// add a file, to prime the connection to peer 1
-	//TODO: Find a better way to do this...
-	size_t bytes_written = 0;
-	if (!ipfs_node_online_new(ipfs_path, &ipfs_node2))
-		goto exit;
-	ipfs_node2->routing->Bootstrap(ipfs_node2->routing);
-	ipfs_import_file(NULL, "/home/parallels/ipfstest/hello_world.txt", &node, ipfs_node2, &bytes_written, 0);
-	ipfs_node_free(ipfs_node2);
 	// start the daemon in a separate thread
 	libp2p_logger_debug("test_routing", "Firing up daemon 2.\n");
-	if (pthread_create(&thread2, NULL, test_daemon_start, (void*)ipfs_path) < 0) {
-		fprintf(stderr, "Unable to start thread 2\n");
+	if (pthread_create(&thread2, NULL, test_daemon_start, (void*)ipfs_path_2) < 0) {
+		libp2p_logger_error("test_routing", "Unable to start thread 2.\n");
 		goto exit;
 	}
 	thread2_started = 1;
 
+	//TODO: add a file to server 2
+	uint8_t *bytes = (unsigned char*)"hello, world!\n";
+	char* filename = "test1.txt";
+	create_file(filename, bytes, strlen((char*)bytes));
+	size_t bytes_written;
+	ipfs_node_offline_new(ipfs_path_2, &ipfs_node2);
+	ipfs_import_file(NULL, filename, &node, ipfs_node2, &bytes_written, 0);
+	memset(hash, 0, 256);
+	ipfs_cid_hash_to_base58(node->hash, node->hash_size, (unsigned char*)hash, 256);
+	libp2p_logger_debug("test_api", "Inserted file with hash %s.\n", hash);
+	ipfs_node_free(ipfs_node2);
+
     // wait for everything to start up
-    // JMJ debugging =
     sleep(3);
 
-    libp2p_logger_debug("test_routing", "Firing up the 3rd client\n");
     // create my peer, peer 3
-	ipfs_path = "/tmp/test3";
 	ma_peer1 = multiaddress_new_from_string(multiaddress_string);
 	ma_vector3 = libp2p_utils_vector_new(1);
 	libp2p_utils_vector_add(ma_vector3, ma_peer1);
-	drop_and_build_repository(ipfs_path, 4003, ma_vector3, &peer_id_3);
+	drop_and_build_repository(ipfs_path_3, 4003, ma_vector3, &peer_id_3);
 	multiaddress_free(ma_peer1);
-	ipfs_node_online_new(ipfs_path, &ipfs_node3);
+	libp2p_logger_debug("test_routing", "Firing up daemon 2.\n");
+	if (pthread_create(&thread3, NULL, test_daemon_start, (void*)ipfs_path_3) < 0) {
+		libp2p_logger_error("test_routing", "Unable to start thread 3.\n");
+		goto exit;
+	}
+	thread3_started = 1;
 
-    ipfs_node3->routing->Bootstrap(ipfs_node3->routing);
+	//now have peer 3 ask for a file that is on peer 2, but peer 3 only knows of peer 1
+	ipfs_node_offline_new(ipfs_path_3, &ipfs_node3);
 
     if (!ipfs_exporter_get_node(ipfs_node3, node->hash, node->hash_size, &result_node)) {
-    	fprintf(stderr, "Get_Node returned false\n");
-    	goto exit;
+    		fprintf(stderr, "Get_Node returned false\n");
+    		goto exit;
     }
 
     if (node->hash_size != result_node->hash_size) {
-    	fprintf(stderr, "Node hash sizes do not match. Should be %lu but is %lu\n", node->hash_size, result_node->hash_size);
-    	goto exit;
+    		fprintf(stderr, "Node hash sizes do not match. Should be %lu but is %lu\n", node->hash_size, result_node->hash_size);
+    		goto exit;
     }
 
     if (node->data_size != result_node->data_size) {
-    	fprintf(stderr, "Result sizes do not match. Should be %lu but is %lu\n", node->data_size, result_node->data_size);
-    	goto exit;
+    		fprintf(stderr, "Result sizes do not match. Should be %lu but is %lu\n", node->data_size, result_node->data_size);
+    		goto exit;
     }
 
 	retVal = 1;
@@ -550,6 +555,8 @@ int test_routing_retrieve_file_third_party() {
 		pthread_join(thread1, NULL);
 	if (thread2_started)
 		pthread_join(thread2, NULL);
+	if (thread3_started)
+		pthread_join(thread3, NULL);
 	if (ipfs_node3 != NULL)
 		ipfs_node_free(ipfs_node3);
 	if (peer_id_1 != NULL)
@@ -558,12 +565,10 @@ int test_routing_retrieve_file_third_party() {
 		free(peer_id_2);
 	if (peer_id_3 != NULL)
 		free(peer_id_3);
-	if (ma_vector2 != NULL) {
+	if (ma_vector2 != NULL)
 		libp2p_utils_vector_free(ma_vector2);
-	}
-	if (ma_vector3 != NULL) {
+	if (ma_vector3 != NULL)
 		libp2p_utils_vector_free(ma_vector3);
-	}
 	if (node != NULL)
 		ipfs_hashtable_node_free(node);
 	if (result_node != NULL)

test/scripts/run_tests.sh

@@ -4,3 +4,4 @@
 ./run_test.sh test_2.sh
 ./run_test.sh test_3.sh
 ./run_test.sh test_4.sh
+./run_test.sh test_5.sh

test/scripts/test_5.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+
+####
+# Attempt to start 2 deamons and have an api client of server A ask for a file from server B
+####
+
+source ./test_helpers.sh
+
+IPFS1="../../main/ipfs --config /tmp/ipfs_1"
+IPFS2="../../main/ipfs --config /tmp/ipfs_2"
+
+function pre {
+	post
+	eval "$IPFS1" init;
+	check_failure "pre" $?
+	cp ../config.test1.wo_journal /tmp/ipfs_1/config
+	
+	eval "$IPFS2" init;
+	check_failure "pre ipfs2" $?
+	cp ../config.test2.wo_journal /tmp/ipfs_2/config
+}
+
+function post {
+	rm -Rf /tmp/ipfs_1;
+	rm -Rf /tmp/ipfs_2;
+	rm hello.txt;
+}
+
+function body {
+	create_hello_world;
+	eval "$IPFS1" add hello.txt
+	check_failure "add hello.txt" $?
+	
+	#start the daemons
+	eval "../../main/ipfs --config /tmp/ipfs_1 daemon &"
+	daemon_id_1=$!
+	eval "../../main/ipfs --config /tmp/ipfs_2 daemon &"
+	daemon_id_2=$!
+	sleep 5
+	
+	#A client of server 2 wants the file at server 1
+	eval "$IPFS2" cat QmYAXgX8ARiriupMQsbGXtKdDyGzWry1YV3sycKw1qqmgH
+	check_failure "cat" $?
+	
+	kill -9 $daemon_id_1
+	kill -9 $daemon_id_2
+}
+
+

test/testit.c

@@ -88,23 +88,24 @@ const char* names[] = {
 		"test_merkledag_get_data",
 		"test_merkledag_add_node",
 		"test_merkledag_add_node_with_links",
+		// 50 below
 		"test_namesys_publisher_publish",
 		"test_namesys_resolver_resolve",
 		"test_resolver_get",
 		"test_routing_find_peer",
-		"test_routing_provide" /*,
+		"test_routing_provide",
 		"test_routing_find_providers",
 		"test_routing_supernode_get_value",
 		"test_routing_supernode_get_remote_value",
 		"test_routing_retrieve_file_third_party",
 		"test_routing_retrieve_large_file",
+		// 60 below
 		"test_unixfs_encode_decode",
 		"test_unixfs_encode_smallfile",
 		"test_ping",
 		"test_ping_remote",
 		"test_null_add_provider",
 		"test_resolver_remote_get"
-		*/
 };
 
 int (*funcs[])(void) = {
@@ -157,24 +158,24 @@ int (*funcs[])(void) = {
 		test_merkledag_get_data,
 		test_merkledag_add_node,
 		test_merkledag_add_node_with_links,
+		// 50 below
 		test_namesys_publisher_publish,
 		test_namesys_resolver_resolve,
 		test_resolver_get,
 		test_routing_find_peer,
-		test_routing_provide /*,
-		test_routing_find_providers,
 		test_routing_provide,
+		test_routing_find_providers,
 		test_routing_supernode_get_value,
 		test_routing_supernode_get_remote_value,
 		test_routing_retrieve_file_third_party,
 		test_routing_retrieve_large_file,
+		// 60 below
 		test_unixfs_encode_decode,
 		test_unixfs_encode_smallfile,
 		test_ping,
 		test_ping_remote,
 		test_null_add_provider,
 		test_resolver_remote_get
-		*/
 };
 
 /**