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/*
This file is part of TALER
Copyright (C) 2015 GNUnet e.V.
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU Affero General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
TALER is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License along with
TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/>
*/
/**
* @file taler-mint-httpd_test.c
* @brief Handle /test requests; parses the POST and JSON and
* checks that the client is binary-compatible
* @author Christian Grothoff
*
* TODO:
* - RSA operations
* - ECDHE operations
* - HKDF operations
* - Symmetric encryption/decryption
* - high-level transfer key logic
*/
#include "platform.h"
#include <gnunet/gnunet_util_lib.h>
#include <jansson.h>
#include <microhttpd.h>
#include "taler_signatures.h"
#include "taler_util.h"
#include "taler-mint-httpd_test.h"
#include "taler-mint-httpd_parsing.h"
#include "taler-mint-httpd_responses.h"
/**
* Handle a "/test/base32" request. Parses the JSON in the post, runs
* the Crockford Base32 decoder on the "input" field in the JSON,
* hashes the result and sends the hashed value back as a JSON
* string with in Base32 Crockford encoding. Thus, this API
* allows testing the hashing and Crockford encoding/decoding
* functions.
*
* @param rh context of the handler
* @param connection the MHD connection to handle
* @param[in,out] connection_cls the connection's closure (can be updated)
* @param upload_data upload data
* @param[in,out] upload_data_size number of bytes (left) in @a upload_data
* @return MHD result code
*/
int
TMH_TEST_handler_test_base32 (struct TMH_RequestHandler *rh,
struct MHD_Connection *connection,
void **connection_cls,
const char *upload_data,
size_t *upload_data_size)
{
json_t *json;
int res;
struct GNUNET_HashCode hc;
struct TMH_PARSE_FieldSpecification spec[] = {
TMH_PARSE_MEMBER_VARIABLE ("input"),
TMH_PARSE_MEMBER_END
};
res = TMH_PARSE_post_json (connection,
connection_cls,
upload_data,
upload_data_size,
&json);
if (GNUNET_SYSERR == res)
return MHD_NO;
if ( (GNUNET_NO == res) || (NULL == json) )
return MHD_YES;
res = TMH_PARSE_json_data (connection,
json,
spec);
if (GNUNET_YES != res)
return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
GNUNET_CRYPTO_hash (spec[0].destination,
spec[0].destination_size_out,
&hc);
TMH_PARSE_release_data (spec);
json_decref (json);
json = TALER_json_from_data (&hc, sizeof (struct GNUNET_HashCode));
res = TMH_RESPONSE_reply_json (connection,
json,
MHD_HTTP_OK);
json_decref (json);
return res;
}
/**
* Handle a "/test/ecdsa" request. Parses the JSON in the post,
* which must contain a "ecdsa_pub" with a public key and an
*"ecdsa_sig" with the corresponding signature for a purpose
* of #TALER_SIGNATURE_CLIENT_TEST_ECDSA. If the signature is
* valid, a reply with a #TALER_SIGNATURE_MINT_TEST_ECDSA is
* returned using the same JSON format.
*
* @param rh context of the handler
* @param connection the MHD connection to handle
* @param[in,out] connection_cls the connection's closure (can be updated)
* @param upload_data upload data
* @param[in,out] upload_data_size number of bytes (left) in @a upload_data
* @return MHD result code
*/
int
TMH_TEST_handler_test_ecdsa (struct TMH_RequestHandler *rh,
struct MHD_Connection *connection,
void **connection_cls,
const char *upload_data,
size_t *upload_data_size)
{
json_t *json;
int res;
struct GNUNET_CRYPTO_EcdsaPublicKey pub;
struct GNUNET_CRYPTO_EcdsaSignature sig;
struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
struct TMH_PARSE_FieldSpecification spec[] = {
TMH_PARSE_MEMBER_FIXED ("ecdsa_pub", &pub),
TMH_PARSE_MEMBER_FIXED ("ecdsa_sig", &sig),
TMH_PARSE_MEMBER_END
};
struct GNUNET_CRYPTO_EcdsaPrivateKey *pk;
res = TMH_PARSE_post_json (connection,
connection_cls,
upload_data,
upload_data_size,
&json);
if (GNUNET_SYSERR == res)
return MHD_NO;
if ( (GNUNET_NO == res) || (NULL == json) )
return MHD_YES;
res = TMH_PARSE_json_data (connection,
json,
spec);
if (GNUNET_YES != res)
return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
purpose.size = htonl (sizeof (struct GNUNET_CRYPTO_EccSignaturePurpose));
purpose.purpose = htonl (TALER_SIGNATURE_CLIENT_TEST_ECDSA);
if (GNUNET_OK !=
GNUNET_CRYPTO_ecdsa_verify (TALER_SIGNATURE_CLIENT_TEST_ECDSA,
&purpose,
&sig,
&pub))
{
TMH_PARSE_release_data (spec);
json_decref (json);
return TMH_RESPONSE_reply_signature_invalid (connection,
"ecdsa_sig");
}
TMH_PARSE_release_data (spec);
json_decref (json);
pk = GNUNET_CRYPTO_ecdsa_key_create ();
purpose.purpose = htonl (TALER_SIGNATURE_MINT_TEST_ECDSA);
if (GNUNET_OK !=
GNUNET_CRYPTO_ecdsa_sign (pk,
&purpose,
&sig))
{
GNUNET_free (pk);
return TMH_RESPONSE_reply_internal_error (connection,
"Failed to ECDSA-sign");
}
GNUNET_CRYPTO_ecdsa_key_get_public (pk,
&pub);
GNUNET_free (pk);
return TMH_RESPONSE_reply_json_pack (connection,
MHD_HTTP_OK,
"{s:o, s:o}",
"ecdsa_pub",
TALER_json_from_data (&pub,
sizeof (pub)),
"ecdsa_sig",
TALER_json_from_data (&sig,
sizeof (sig)));
}
/**
* Handle a "/test/eddsa" request. Parses the JSON in the post,
* which must contain a "eddsa_pub" with a public key and an
*"ecdsa_sig" with the corresponding signature for a purpose
* of #TALER_SIGNATURE_CLIENT_TEST_EDDSA. If the signature is
* valid, a reply with a #TALER_SIGNATURE_MINT_TEST_EDDSA is
* returned using the same JSON format.
*
* @param rh context of the handler
* @param connection the MHD connection to handle
* @param[in,out] connection_cls the connection's closure (can be updated)
* @param upload_data upload data
* @param[in,out] upload_data_size number of bytes (left) in @a upload_data
* @return MHD result code
*/
int
TMH_TEST_handler_test_eddsa (struct TMH_RequestHandler *rh,
struct MHD_Connection *connection,
void **connection_cls,
const char *upload_data,
size_t *upload_data_size)
{
json_t *json;
int res;
struct GNUNET_CRYPTO_EddsaPublicKey pub;
struct GNUNET_CRYPTO_EddsaSignature sig;
struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
struct TMH_PARSE_FieldSpecification spec[] = {
TMH_PARSE_MEMBER_FIXED ("eddsa_pub", &pub),
TMH_PARSE_MEMBER_FIXED ("eddsa_sig", &sig),
TMH_PARSE_MEMBER_END
};
struct GNUNET_CRYPTO_EddsaPrivateKey *pk;
res = TMH_PARSE_post_json (connection,
connection_cls,
upload_data,
upload_data_size,
&json);
if (GNUNET_SYSERR == res)
return MHD_NO;
if ( (GNUNET_NO == res) || (NULL == json) )
return MHD_YES;
res = TMH_PARSE_json_data (connection,
json,
spec);
if (GNUNET_YES != res)
return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
purpose.size = htonl (sizeof (struct GNUNET_CRYPTO_EccSignaturePurpose));
purpose.purpose = htonl (TALER_SIGNATURE_CLIENT_TEST_EDDSA);
if (GNUNET_OK !=
GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_CLIENT_TEST_EDDSA,
&purpose,
&sig,
&pub))
{
TMH_PARSE_release_data (spec);
json_decref (json);
return TMH_RESPONSE_reply_signature_invalid (connection,
"eddsa_sig");
}
TMH_PARSE_release_data (spec);
json_decref (json);
pk = GNUNET_CRYPTO_eddsa_key_create ();
purpose.purpose = htonl (TALER_SIGNATURE_MINT_TEST_EDDSA);
if (GNUNET_OK !=
GNUNET_CRYPTO_eddsa_sign (pk,
&purpose,
&sig))
{
GNUNET_free (pk);
return TMH_RESPONSE_reply_internal_error (connection,
"Failed to EdDSA-sign");
}
GNUNET_CRYPTO_eddsa_key_get_public (pk,
&pub);
GNUNET_free (pk);
return TMH_RESPONSE_reply_json_pack (connection,
MHD_HTTP_OK,
"{s:o, s:o}",
"eddsa_pub",
TALER_json_from_data (&pub,
sizeof (pub)),
"eddsa_sig",
TALER_json_from_data (&sig,
sizeof (sig)));
}
/**
* Handle a "/test" request. Parses the JSON in the post.
*
* @param rh context of the handler
* @param connection the MHD connection to handle
* @param[in,out] connection_cls the connection's closure (can be updated)
* @param upload_data upload data
* @param[in,out] upload_data_size number of bytes (left) in @a upload_data
* @return MHD result code
*/
int
TMH_TEST_handler_test (struct TMH_RequestHandler *rh,
struct MHD_Connection *connection,
void **connection_cls,
const char *upload_data,
size_t *upload_data_size)
{
json_t *json;
int res;
res = TMH_PARSE_post_json (connection,
connection_cls,
upload_data,
upload_data_size,
&json);
if (GNUNET_SYSERR == res)
return MHD_NO;
if ( (GNUNET_NO == res) || (NULL == json) )
return MHD_YES;
json_decref (json);
return res;
}
/* end of taler-mint-httpd_test.c */
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