c-ipfs/routing/offline.c

122 lines
3.4 KiB
C

#include <stdlib.h>
#include <ipfs/routing/routing.h>
#include <ipfs/util/errs.h>
#include "libp2p/crypto/rsa.h"
#include "libp2p/record/record.h"
#include "ipfs/datastore/ds_helper.h"
#include "ipfs/merkledag/merkledag.h"
#include "ipfs/routing/routing.h"
#include "ipfs/importer/resolver.h"
int ipfs_routing_generic_put_value (ipfs_routing* offlineRouting, const unsigned char *key, size_t key_size, const void *val, size_t vlen)
{
int err;
char *record, *nkey;
size_t len, nkey_len;
err = libp2p_record_make_put_record (&record, &len, offlineRouting->sk, (const char*)key, val, vlen, 0);
if (err) {
return err;
}
nkey = malloc(key_size * 2); // FIXME: size of encoded key
if (!nkey) {
free (record);
return -1;
}
if (!ipfs_datastore_helper_ds_key_from_binary(key, key_size, (unsigned char*)nkey, key_size+1, &nkey_len)) {
free (nkey);
free (record);
return -1;
}
// TODO: Save to db as offline storage.
free (record);
return 0; // success.
}
int ipfs_routing_generic_get_value (ipfs_routing* routing, const unsigned char *key, size_t key_size, void **val, size_t *vlen)
{
struct HashtableNode* node = NULL;
*val = NULL;
int retVal = -1;
if (!ipfs_merkledag_get(key, key_size, &node, routing->local_node->repo)) {
goto exit;
}
// protobuf the node
int protobuf_size = ipfs_hashtable_node_protobuf_encode_size(node);
*val = malloc(protobuf_size);
if (ipfs_hashtable_node_protobuf_encode(node, *val, protobuf_size, vlen) == 0) {
goto exit;
}
retVal = 0;
exit:
if (node != NULL)
ipfs_hashtable_node_free(node);
if (retVal != 0 && *val != NULL) {
free(*val);
*val = NULL;
}
return retVal;
}
int ipfs_routing_offline_find_providers (ipfs_routing* offlineRouting, const unsigned char *key, size_t key_size, struct Libp2pVector** peers)
{
return ErrOffline;
}
int ipfs_routing_offline_find_peer (ipfs_routing* offlineRouting, const unsigned char *peer_id, size_t pid_size, struct Libp2pPeer **result)
{
return ErrOffline;
}
int ipfs_routing_offline_provide (ipfs_routing* offlineRouting, const unsigned char *cid, size_t cid_size)
{
return ErrOffline;
}
int ipfs_routing_offline_ping (ipfs_routing* offlineRouting, struct Libp2pPeer* peer)
{
return ErrOffline;
}
/**
* For offline, this does nothing
* @param offlineRouting the interface
* @returns 0
*/
int ipfs_routing_offline_bootstrap (ipfs_routing* offlineRouting)
{
return 0;
}
struct IpfsRouting* ipfs_routing_new_offline (struct IpfsNode* local_node, struct RsaPrivateKey *private_key)
{
struct IpfsRouting *offlineRouting = malloc (sizeof(struct IpfsRouting));
if (offlineRouting) {
offlineRouting->local_node = local_node;
offlineRouting->sk = private_key;
offlineRouting->PutValue = ipfs_routing_generic_put_value;
offlineRouting->GetValue = ipfs_routing_generic_get_value;
offlineRouting->FindProviders = ipfs_routing_offline_find_providers;
offlineRouting->FindPeer = ipfs_routing_offline_find_peer;
offlineRouting->Provide = ipfs_routing_offline_provide;
offlineRouting->Ping = ipfs_routing_offline_ping;
offlineRouting->Bootstrap = ipfs_routing_offline_bootstrap;
}
return offlineRouting;
}
int ipfs_routing_offline_free(ipfs_routing* incoming) {
free(incoming);
return 1;
}