Added multibase and cid

Makefile

@@ -3,20 +3,24 @@ DEBUG = true
 export DEBUG
 
 all:
+	cd cid; make all;
 	cd cmd; make all;
 	cd commands; make all;
 	cd core; make all;
+	cd multibase; make all;
 	cd os; make all;
 	cd repo; make all;
-	cd test; make all;
 	cd thirdparty; make all;
+	cd test; make all;
 	
 clean:
+	cd cid; make clean;
 	cd cmd; make clean;
 	cd commands; make clean;
 	cd core; make clean;
+	cd multibase; make clean;
 	cd os; make clean;
 	cd repo; make clean;
-	cd test; make clean;
 	cd thirdparty; make clean;
+	cd test; make clean;
 	

cid/Makefile

@@ -0,0 +1,18 @@
+CC = gcc
+CFLAGS = -O0 -I../include -I../../c-libp2p/include -I../../c-multihash/include
+
+ifdef DEBUG
+CFLAGS += -g3
+endif
+
+LFLAGS = 
+DEPS = 
+OBJS = cid.o
+
+%.o: %.c $(DEPS)
+	$(CC) -c -o $@ $< $(CFLAGS)
+
+all: $(OBJS)
+
+clean:
+	rm -f *.o

cid/cid.c

@@ -0,0 +1,137 @@
+/**
+ * Content ID
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "ipfs/cid/cid.h"
+
+#include "libp2p/crypto/encoding/base58.h"
+#include "ipfs/multibase/multibase.h"
+#include "mh/multihash.h"
+
+
+/**
+ * Create a new CID based on the given hash
+ * @param version the version
+ * @param hash the multihash
+ * @param hash_length the length of the multihash in bytes
+ * @param codec the codec to be used (NOTE: For version 0, this should be CID_PROTOBUF)
+ * @param cid where to put the results
+ * @returns true(1) on success
+ */
+int cid_new(int version, unsigned char* hash, size_t hash_length, const char codec, struct Cid* cid) {
+	// allocate memory
+	cid->hash = malloc(sizeof(unsigned char) * hash_length);
+	if (cid->hash == NULL)
+		return 0;
+	// assign values
+	cid->version = version;
+	cid->codec = codec;
+	memcpy(cid->hash, hash, hash_length);
+	cid->hash_length = hash_length;
+
+	return 1;
+
+}
+
+/***
+ * Free the resources from a Cid
+ * @param cid the struct
+ * @returns 1
+ */
+int cid_free(struct Cid* cid) {
+	if (cid->hash != NULL)
+		free(cid->hash);
+	return 1;
+}
+
+/***
+ * Fill a Cid struct based on a base 58 encoded string
+ * @param incoming the string
+ * @param incoming_size the size of the string
+ * @cid the Cid struct to fill
+ * @return true(1) on success
+ */
+int cid_decode_from_string(const unsigned char* incoming, size_t incoming_length, struct Cid* cid) {
+	int retVal = 0;
+
+	if (incoming_length < 2)
+		return 0;
+
+	// is this a sha_256 multihash?
+	if (incoming_length == 46 && incoming[0] == 'Q' && incoming[1] == 'm') {
+		size_t hash_length = libp2p_crypto_encoding_base58_decode_size(incoming_length);
+		unsigned char hash[hash_length];
+		unsigned char* ptr = hash;
+		retVal = libp2p_crypto_encoding_base58_decode(incoming, incoming_length, &ptr, &hash_length);
+		if (retVal == 0)
+			return 0;
+		// now we have the hash, build the object
+		return cid_new(0, hash, hash_length, CID_PROTOBUF, cid);
+	}
+
+	// TODO: finish this
+	/*
+	// it wasn't a sha_256 multihash, try to decode it using multibase
+	size_t buffer_size = multibase_decode_size(incoming_length);
+	if (buffer_size == 0)
+		return 0;
+	unsigned char buffer[buffer_size];
+
+	memset(buffer, 0, buffer_size);
+
+	retVal = multibase_decode(incoming, incoming_length, buffer, buffer_size, &buffer_size);
+	if (retVal == 0)
+		return 0;
+
+	return cid_cast(buffer, buffer_size, cid);
+	*/
+	return 0;
+}
+
+/***
+ * Turn a multibase decoded string of bytes into a Cid struct
+ * @param incoming the multibase decoded array
+ * @param incoming_size the size of the array
+ * @param cid the Cid structure to fill
+ */
+int cid_cast(unsigned char* incoming, size_t incoming_size, struct Cid* cid) {
+	// this is a multihash
+	if (incoming_size == 34 && incoming[0] == 18 && incoming[1] == 32) {
+		cid->hash_length = mh_multihash_length(incoming, incoming_size);
+		cid->codec = CID_PROTOBUF;
+		cid->version = 0;
+		// allocate memory for hash
+		cid->hash = malloc(cid->hash_length);
+		if (cid->hash == NULL)
+			return 0;
+
+		mh_multihash_digest(incoming, incoming_size, &cid->hash, &cid->hash_length);
+		return 1;
+	}
+
+	/*
+	 *TODO: Implement this
+	// This is not a multihash. Try to peel the information out of the bytes
+	// first the version
+	int pos = 0, retVal = 0;
+	int num_bytes = 0;
+	retVal = varint_to_int(&incoming[pos], &cid->version, &num_bytes);
+	if (retVal == 0)
+		return 0;
+	pos = num_bytes;
+	// now the codec
+	retVal = varint_to_int(&incoming[pos], &cid->codec, &num_bytes);
+	if (retVal == 0)
+		return 0;
+	pos += num_bytes;
+	// now what is left
+	cid->hash_length = incoming_size - pos;
+	// TODO: allocate memory
+	memcpy(cid->hash, &incoming[pos], cid->hash_length);
+	*/
+	return 0;
+}

include/ipfs/cid/cid.h

@@ -0,0 +1,62 @@
+/***
+ * A content id
+ */
+
+#ifndef __IPFS_CID_CID_H
+#define __IPFS_CID_CID_H
+
+#define CID_PROTOBUF 0x70
+#define CID_CBOR 0x71
+#define CID_RAW 0x72
+#define CID_JSON 0x73
+#define CID_ETHEREUM_BLOCK 0x90
+#define CID_ETHEREUM_TX 0x91
+#define CID_BITCOIN_BLOCK 0xb0
+#define CID_BITCOIN_TX 0xb1
+#define CID_ZCASH_BLOCK 0xc0
+#define CID_ZCASH_TX 0xc1
+
+struct Cid {
+	int version;
+	char codec;
+	unsigned char* hash; // a multihash
+	size_t hash_length;
+};
+
+
+/**
+ * Create a new CID based on the given hash
+ * @param version the version
+ * @param hash the multihash
+ * @param hash_length the length of the multihash in bytes
+ * @param codec the codec to be used (NOTE: For version 0, this should be CID_PROTOBUF)
+ * @param cid where to put the results
+ * @returns true(1) on success
+ */
+int cid_new(int version, unsigned char* hash, size_t hash_length, const char codec, struct Cid* cid);
+
+/***
+ * Free the resources from a Cid
+ * @param cid the struct
+ * @returns 1
+ */
+int cid_free(struct Cid* cid);
+
+/***
+ * Fill a Cid struct based on a base 58 encoded string
+ * @param incoming the string
+ * @param incoming_size the size of the string
+ * @cid the Cid struct to fill
+ * @return true(1) on success
+ */
+int cid_decode_from_string(const unsigned char* incoming, size_t incoming_length, struct Cid* cid);
+
+/***
+ * Turn a multibase decoded string of bytes into a Cid struct
+ * @param incoming the multibase decoded array
+ * @param incoming_size the size of the array
+ * @param cid the Cid structure to fill
+ */
+int cid_cast(unsigned char* incoming, size_t incoming_size, struct Cid* cid);
+
+#endif

include/ipfs/multibase/multibase.h

@@ -0,0 +1,47 @@
+#include <stdio.h>
+
+#ifndef __IPFS_MULTIBASE_MULTIBASE_H__
+#define __IPFS_MULTIBASE_MULTIBASE_H__
+
+// the first digit of data, to determine the encoding used or using
+#define MULTIBASE_BASE1 '1'
+#define MULTIBASE_BASE2 '0'
+#define MULTIBASE_BASE8 '7'
+#define MULTIBASE_BASE10 '9'
+#define MULTIBASE_BASE16 'f'
+#define MULTIBASE_BASE58_FLICKR 'Z'
+#define MULTIBASE_BASE58_BTC 'z'
+
+/**
+ * Encode data in multibase format
+ * @param base the format to use (i.e. MULTIBASE_BASE58_BTC)
+ * @param incoming the data to encode
+ * @param incoming_length the length of the data to encode
+ * @param results where to put the results
+ * @param results_max_length the size of the results buffer
+ * @param results_length the size of the results after being encoded
+ * @returns true(1) on success
+ */
+int multibase_encode(const char base, const unsigned char* incoming, size_t incoming_length, unsigned char* results, size_t results_max_length, size_t* results_length);
+
+/***
+ * Calculates the size of the buffer neccessary to encode the incoming byte array
+ * @param base the encoding to use
+ * @param incoming the incoming array of bytes
+ * @param incoming_length the length of the array in bytes
+ * @returns the appropriate size of the buffer
+ */
+int multibase_encode_size(const char base, const unsigned char* incoming, size_t incoming_length);
+
+/**
+ * Decode data that was encoded in multibase format
+ * @param incoming the data to decode
+ * @param incoming_length the length of the data to decode
+ * @param results where to put the results
+ * @param results_max_length the size of the results buffer
+ * @param results_length the size of the results after being encoded
+ * @returns true(1) on success
+ */
+int multibase_decode(const unsigned char* incoming, size_t incoming_length, unsigned char* results, size_t results_max_length, size_t* results_length);
+
+#endif

include/ipfs/node/node.h

@@ -0,0 +1,14 @@
+/**
+ * An implementation of an IPFS node
+ * Copying the go-ipfs-node project
+ */
+
+#include <stdint.h>
+
+
+
+struct Link {
+	char* name;
+	uint64_t size;
+	struct Cid cid; // content id
+};

multibase/Makefile

@@ -0,0 +1,18 @@
+CC = gcc
+CFLAGS = -O0 -I../include -I../../c-libp2p/include -I../../c-multihash/include
+
+ifdef DEBUG
+CFLAGS += -g3
+endif
+
+LFLAGS = 
+DEPS = 
+OBJS = multibase.o
+
+%.o: %.c $(DEPS)
+	$(CC) -c -o $@ $< $(CFLAGS)
+
+all: $(OBJS)
+
+clean:
+	rm -f *.o

multibase/multibase.c

@@ -0,0 +1,113 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "ipfs/multibase/multibase.h"
+#include "libp2p/crypto/encoding/base58.h"
+#include "libp2p/crypto/encoding/base16.h"
+
+/**
+ * Encode data in multibase format. NOTE: currently only supports MULTIBASE_BASE58_BTC and MULTIBASE_BASE16
+ * @param base the format to use (i.e. MULTIBASE_BASE58_BTC)
+ * @param incoming the data to encode
+ * @param incoming_length the length of the data to encode
+ * @param results where to put the results
+ * @param results_max_length the size of the results buffer
+ * @param results_length the size of the results after being encoded
+ * @returns true(1) on success
+ */
+int multibase_encode(const char base, const unsigned char* incoming, size_t incoming_length, unsigned char* results, size_t results_max_length, size_t* results_length) {
+	*results_length = results_max_length;
+	int retVal = 0;
+
+	switch (base) {
+		case (MULTIBASE_BASE58_BTC):
+			retVal = libp2p_crypto_encoding_base58_encode(incoming, incoming_length, &results, results_length);
+			break;
+		case(MULTIBASE_BASE16):
+			retVal = libp2p_crypto_encoding_base16_encode(incoming, incoming_length, results, results_length);
+			break;
+		default: // unsupported format
+			return 0;
+	}
+	// check to see if there was a problem
+	if (retVal == 0)
+		return 0;
+
+	// we have the hash, now add the code to the first byte (if there is room)
+
+	if (*results_length >= results_max_length) { // It could be equal, but should never be greater. But just in case.
+		return 0; // buffer isn't big enough
+	}
+
+	memcpy(&results[1], results, *results_length);
+	results[0] = base;
+	*results_length += 1;
+
+	return 1;
+}
+
+/***
+ * Calculates the size of the buffer neccessary to encode the incoming byte array
+ * @param base the encoding to use
+ * @param incoming the incoming array of bytes
+ * @param incoming_length the length of the array in bytes
+ * @returns the appropriate size of the buffer
+ */
+int multibase_encode_size(const char base, const unsigned char* incoming, size_t incoming_length) {
+	switch (base) {
+	case (MULTIBASE_BASE58_BTC):
+			return libp2p_crypto_encoding_base58_encode_size(incoming_length) + 1;
+	case (MULTIBASE_BASE16):
+			return libp2p_crypto_encoding_base16_encode_size(incoming_length);
+	}
+	return 0;
+}
+
+/**
+ * Decode data that was encoded in multibase format
+ * @param incoming the data to decode
+ * @param incoming_length the length of the data to decode
+ * @param results where to put the results
+ * @param results_max_length the size of the results buffer
+ * @param results_length the size of the results after being encoded
+ * @returns true(1) on success
+ */
+int multibase_decode(const unsigned char* incoming, size_t incoming_length, unsigned char* results, size_t results_max_length, size_t* results_length) {
+	*results_length = results_max_length;
+	int retVal = 0;
+
+	const char base = incoming[0];
+
+	switch (base) {
+		case (MULTIBASE_BASE58_BTC):
+			retVal = libp2p_crypto_encoding_base58_decode(&incoming[1], incoming_length - 1, &results, results_length);
+			break;
+		case(MULTIBASE_BASE16):
+			retVal = libp2p_crypto_encoding_base16_decode(&incoming[1], incoming_length - 1, results, results_length);
+			break;
+		default: // unsupported format
+			return 0;
+	}
+	// check to see if there was a problem
+	if (retVal == 0)
+		return 0;
+
+	return 1;
+}
+
+/***
+ * Calculates the size of the buffer neccessary to decode the incoming byte array
+ * @param base the encoding to use
+ * @param incoming the incoming array of bytes
+ * @param incoming_length the length of the array in bytes
+ * @returns the appropriate size of the buffer
+ */
+int multibase_decode_size(const char base, const unsigned char* incoming, size_t incoming_length) {
+	switch (base) {
+	case (MULTIBASE_BASE58_BTC):
+			return libp2p_crypto_encoding_base58_decode_size(incoming_length) + 1;
+	case (MULTIBASE_BASE16):
+			return libp2p_crypto_encoding_base16_decode_size(incoming_length);
+	}
+	return 0;
+}

node/node.c

@@ -0,0 +1,7 @@
+/**
+ * An implementation of an IPFS node
+ * Copying the go-ipfs-node project
+ */
+
+#include "ipfs/node/node.h"
+

repo/config/Makefile

@@ -7,7 +7,7 @@ endif
 
 LFLAGS = 
 DEPS = config.h datastore.h identity.h
-OBJS = config.o
+OBJS = config.o identity.o bootstrap_peers.o datastore.o gateway.o addresses.o swarm.o peer.o
 
 %.o: %.c $(DEPS)
 	$(CC) -c -o $@ $< $(CFLAGS)

repo/config/identity.c

@@ -23,7 +23,7 @@ int repo_config_identity_new(struct Identity* identity, unsigned long num_bits_f
 	if (num_bits_for_keypair < 1024)
 		return 0;
 	// generate the private key (& public)
-	if (!crypto_rsa_generate_keypair( &(identity->private_key), num_bits_for_keypair))
+	if (!libp2p_crypto_rsa_generate_keypair( &(identity->private_key), num_bits_for_keypair))
 		return 0;
 	
 	// now the private key (in DER format) is in identity->private_key->der;

repo/fsrepo/fs_repo.c

@@ -30,9 +30,9 @@ int repo_config_write_config_file(char* full_filename, struct RepoConfig* config
 	fprintf(out_file, "  \"PeerID\": \"%s\",\n", config->identity.peer_id);
 	// TODO: print correct format of private key
 	// first base 64 it
-	size_t encoded_size = base64_encode_length(config->identity.private_key.der, config->identity.private_key.der_length);
+	size_t encoded_size = libp2p_crypto_encoding_base64_encode_size(config->identity.private_key.der_length);
 	unsigned char encoded_buffer[encoded_size + 1];
-	int retVal = base64_encode(config->identity.private_key.der, config->identity.private_key.der_length, encoded_buffer, encoded_size, &encoded_size);
+	int retVal = libp2p_crypto_encoding_base64_encode(config->identity.private_key.der, config->identity.private_key.der_length, encoded_buffer, encoded_size, &encoded_size);
 	if (retVal == 0)
 		return 0;
 	encoded_buffer[encoded_size] = 0;

test/Makefile

@@ -1,13 +1,13 @@
 CC = gcc
-CFLAGS = -O0 -I../include -I../../c-libp2p/include -g3
-LFLAGS = -L../../c-libp2p -lp2p
-DEPS = cmd/ipfs/test_init.h repo/test_repo_bootstrap_peers.h repo/test_repo_config.h repo/test_repo_identity.h
+CFLAGS = -O0 -I../include -I../../c-libp2p/include -I../../c-multihash/include -g3
+LFLAGS = -L../../c-libp2p -L../../c-multihash -lp2p -lm -lmultihash
+DEPS = cmd/ipfs/test_init.h repo/test_repo_bootstrap_peers.h repo/test_repo_config.h repo/test_repo_identity.h cid/test_cid.h
 OBJS = testit.o ../cmd/ipfs/init.o ../commands/argument.o ../commands/command_option.o \
 	../commands/command.o ../commands/cli/parse.o ../core/builder.o ../repo/fsrepo/fs_repo.o \
 	../repo/fsrepo/fs_repo.o ../repo//config/config.o ../os/utils.o ../repo/config/identity.o \
 	../repo/config/bootstrap_peers.o ../repo/config/datastore.o ../repo/config/gateway.o \
 	../repo/config/addresses.o ../repo/config/swarm.o ../repo/config/peer.o \
-	../thirdparty/ipfsaddr/ipfs_addr.o
+	../thirdparty/ipfsaddr/ipfs_addr.o ../cid/cid.o ../multibase/multibase.o
 
 %.o: %.c $(DEPS)
 	$(CC) -c -o $@ $< $(CFLAGS)

test/cid/test_cid.h

@@ -0,0 +1,79 @@
+#include <string.h>
+
+#include "mh/hashes.h"
+#include "mh/multihash.h"
+
+#include "ipfs/cid/cid.h"
+#include "ipfs/multibase/multibase.h"
+
+#include "libp2p/crypto/hashing/sha256.h"
+
+int test_cid_new_free() {
+
+	struct Cid cid;
+	const unsigned char* hash = "ABC123";
+	int retVal = cid_new(0, (unsigned char*)hash, strlen((char*)hash), CID_PROTOBUF, &cid);
+	if (retVal == 0)
+		return 0;
+
+	if (cid.version != 0)
+		return 0;
+
+	if (cid.codec != CID_PROTOBUF)
+		return 0;
+
+	if (cid.hash_length != strlen((char*)hash))
+		return 0;
+
+	if (strncmp((char*)cid.hash, (char*)hash, 6) != 0)
+		return 0;
+
+	return cid_free(&cid);
+}
+
+/***
+ * Test sending a multibase encoded multihash into cid_cast method
+ * that should return a Cid struct
+ */
+int test_cid_cast_multihash() {
+	// first, build a multihash
+	char* string_to_hash = "Hello, World!";
+	unsigned char hashed[32];
+	memset(hashed, 0, 32);
+	// hash the string
+	libp2p_crypto_hashing_sha256(string_to_hash, strlen(string_to_hash), hashed);
+	size_t multihash_size = mh_new_length(MH_H_SHA2_256, 32);
+	unsigned char multihash[multihash_size];
+	memset(multihash, 0, multihash_size);
+	unsigned char* ptr = multihash;
+
+	int retVal = mh_new(ptr, MH_H_SHA2_256, hashed, 32);
+	if (retVal < 0)
+		return 0;
+
+	// now call cast
+	struct Cid cid;
+	retVal = cid_cast(multihash, multihash_size, &cid);
+	if (retVal == 0)
+		return 0;
+	// check results
+	if (cid.version != 0)
+		return 0;
+	if (cid.hash_length != 32)
+		return 0;
+	if (cid.codec != CID_PROTOBUF)
+		return 0;
+	if (strncmp(hashed, cid.hash, 32) != 0)
+		return 0;
+
+	return 1;
+}
+
+int test_cid_cast_non_multihash() {
+	// this should turn a multibase encoded string into a cid struct
+	// first, build a multibase encoded string
+	// now call cast
+	// check results
+	return 0;
+}
+

test/repo/test_repo_identity.h

@@ -29,9 +29,9 @@ int test_repo_config_identity_new() {
 // test this key
 int test_repo_config_identity_private_key() {
 	const char* priv_b64 = "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";
-	size_t decoded_len = base64_decode_length(priv_b64, strlen(priv_b64));
+	size_t decoded_len = libp2p_crypto_encoding_base64_decode_size(strlen(priv_b64));
 	char* out_buff = malloc(sizeof(char) * decoded_len);
-	base64_decode(priv_b64, strlen(priv_b64), out_buff, decoded_len, &decoded_len);
+	libp2p_crypto_encoding_base64_decode(priv_b64, strlen(priv_b64), out_buff, decoded_len, &decoded_len);
 	char str[decoded_len];
 	int j = 0;
 	for (int i = 0; i < decoded_len; i++) {

test/testit.c

@@ -2,6 +2,7 @@
 #include "repo/test_repo_identity.h"
 #include "repo/test_repo_bootstrap_peers.h"
 #include "cmd/ipfs/test_init.h"
+#include "cid/test_cid.h"
 
 int testit(const char* name, int (*func)(void)) {
 	printf("Testing %s...\n", name);
@@ -14,6 +15,9 @@ int testit(const char* name, int (*func)(void)) {
 }
 
 int main(int argc, char** argv) {
+	testit("test_cid_new_free", test_cid_new_free);
+	testit("test_cid_cast_multihash", test_cid_cast_multihash);
+	testit("test_cid_cast_non_multihash", test_cid_cast_non_multihash);
 	testit("test_init_new_installation", test_init_new_installation);
 	testit("test_repo_config_init", test_repo_config_init);
 	testit("test_repo_config_write", test_repo_config_write);