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authorChristian Grothoff <christian@grothoff.org>2016-03-01 15:35:04 +0100
committerChristian Grothoff <christian@grothoff.org>2016-03-01 15:35:04 +0100
commitb5cba3251053c22bf1df46282f1dd0a4c46f6a38 (patch)
treeb7495c3e47c40c57ff81045a4e43aa07a3b6c7b1 /src/mint/taler-mint-httpd_deposit.c
parente406833eab7ca0835f9779abebada94592a85a7e (diff)
downloadexchange-b5cba3251053c22bf1df46282f1dd0a4c46f6a38.tar.gz
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renaming mint->exchange
Diffstat (limited to 'src/mint/taler-mint-httpd_deposit.c')
-rw-r--r--src/mint/taler-mint-httpd_deposit.c281
1 files changed, 0 insertions, 281 deletions
diff --git a/src/mint/taler-mint-httpd_deposit.c b/src/mint/taler-mint-httpd_deposit.c
deleted file mode 100644
index 40c5a4db7..000000000
--- a/src/mint/taler-mint-httpd_deposit.c
+++ /dev/null
@@ -1,281 +0,0 @@
-/*
- This file is part of TALER
- Copyright (C) 2014, 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_deposit.c
- * @brief Handle /deposit requests; parses the POST and JSON and
- * verifies the coin signature before handing things off
- * to the database.
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- *
- * TODO:
- * - ugly if-construction for deposit type
- */
-#include "platform.h"
-#include <gnunet/gnunet_util_lib.h>
-#include <jansson.h>
-#include <microhttpd.h>
-#include <pthread.h>
-#include "taler-mint-httpd_parsing.h"
-#include "taler-mint-httpd_deposit.h"
-#include "taler-mint-httpd_responses.h"
-#include "taler-mint-httpd_keystate.h"
-#include "taler-mint-httpd_validation.h"
-
-
-/**
- * We have parsed the JSON information about the deposit, do some
- * basic sanity checks (especially that the signature on the coin is
- * valid, and that this type of coin exists) and then execute the
- * deposit.
- *
- * @param connection the MHD connection to handle
- * @param deposit information about the deposit
- * @return MHD result code
- */
-static int
-verify_and_execute_deposit (struct MHD_Connection *connection,
- const struct TALER_MINTDB_Deposit *deposit)
-{
- struct TMH_KS_StateHandle *key_state;
- struct TALER_DepositRequestPS dr;
- struct TALER_MINTDB_DenominationKeyIssueInformation *dki;
- struct TALER_Amount fee_deposit;
-
- dr.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_DEPOSIT);
- dr.purpose.size = htonl (sizeof (struct TALER_DepositRequestPS));
- dr.h_contract = deposit->h_contract;
- dr.h_wire = deposit->h_wire;
- dr.timestamp = GNUNET_TIME_absolute_hton (deposit->timestamp);
- dr.refund_deadline = GNUNET_TIME_absolute_hton (deposit->refund_deadline);
- dr.transaction_id = GNUNET_htonll (deposit->transaction_id);
- TALER_amount_hton (&dr.amount_with_fee,
- &deposit->amount_with_fee);
- TALER_amount_hton (&dr.deposit_fee,
- &deposit->deposit_fee);
- dr.merchant = deposit->merchant_pub;
- dr.coin_pub = deposit->coin.coin_pub;
- if (GNUNET_OK !=
- GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_DEPOSIT,
- &dr.purpose,
- &deposit->csig.eddsa_signature,
- &deposit->coin.coin_pub.eddsa_pub))
- {
- TALER_LOG_WARNING ("Invalid signature on /deposit request\n");
- return TMH_RESPONSE_reply_signature_invalid (connection,
- "coin_sig");
- }
- /* check denomination exists and is valid */
- key_state = TMH_KS_acquire ();
- dki = TMH_KS_denomination_key_lookup (key_state,
- &deposit->coin.denom_pub,
- TMH_KS_DKU_DEPOSIT);
- if (NULL == dki)
- {
- TMH_KS_release (key_state);
- TALER_LOG_WARNING ("Unknown denomination key in /deposit request\n");
- return TMH_RESPONSE_reply_arg_unknown (connection,
- "denom_pub");
- }
- /* check coin signature */
- if (GNUNET_YES !=
- TALER_test_coin_valid (&deposit->coin))
- {
- TALER_LOG_WARNING ("Invalid coin passed for /deposit\n");
- TMH_KS_release (key_state);
- return TMH_RESPONSE_reply_signature_invalid (connection,
- "ub_sig");
- }
- TALER_amount_ntoh (&fee_deposit,
- &dki->issue.properties.fee_deposit);
- if (0 < TALER_amount_cmp (&fee_deposit,
- &deposit->amount_with_fee))
- {
- TMH_KS_release (key_state);
- return TMH_RESPONSE_reply_external_error (connection,
- "deposited amount smaller than depositing fee");
- }
- TMH_KS_release (key_state);
-
- return TMH_DB_execute_deposit (connection,
- deposit);
-}
-
-
-/**
- * Handle a "/deposit" request. This function parses the
- * JSON information and then calls #verify_and_execute_deposit()
- * to verify the signatures and execute the deposit.
- *
- * @param connection the MHD connection to handle
- * @param root root of the posted JSON
- * @param amount how much should be deposited
- * @param wire json describing the wire details (?)
- * @return MHD result code
- */
-static int
-parse_and_handle_deposit_request (struct MHD_Connection *connection,
- const json_t *root,
- const struct TALER_Amount *amount,
- json_t *wire)
-{
- int res;
- struct TALER_MINTDB_Deposit deposit;
- struct TALER_MINTDB_DenominationKeyIssueInformation *dki;
- struct TMH_KS_StateHandle *ks;
- struct GNUNET_HashCode my_h_wire;
- struct TMH_PARSE_FieldSpecification spec[] = {
- TMH_PARSE_member_denomination_public_key ("denom_pub", &deposit.coin.denom_pub),
- TMH_PARSE_member_denomination_signature ("ub_sig", &deposit.coin.denom_sig),
- TMH_PARSE_member_fixed ("coin_pub", &deposit.coin.coin_pub),
- TMH_PARSE_member_fixed ("merchant_pub", &deposit.merchant_pub),
- TMH_PARSE_member_fixed ("H_contract", &deposit.h_contract),
- TMH_PARSE_member_fixed ("H_wire", &deposit.h_wire),
- TMH_PARSE_member_fixed ("coin_sig", &deposit.csig),
- TMH_PARSE_member_uint64 ("transaction_id", &deposit.transaction_id),
- TMH_PARSE_member_time_abs ("timestamp", &deposit.timestamp),
- TMH_PARSE_member_time_abs ("refund_deadline", &deposit.refund_deadline),
- TMH_PARSE_member_time_abs ("edate", &deposit.wire_deadline),
- TMH_PARSE_MEMBER_END
- };
-
- memset (&deposit, 0, sizeof (deposit));
- res = TMH_PARSE_json_data (connection,
- root,
- spec);
- if (GNUNET_SYSERR == res)
- return MHD_NO; /* hard failure */
- if (GNUNET_NO == res)
- return MHD_YES; /* failure */
-
- if (GNUNET_YES !=
- TMH_json_validate_wireformat (wire))
- {
- TMH_PARSE_release_data (spec);
- return TMH_RESPONSE_reply_arg_unknown (connection,
- "wire");
- }
- if (GNUNET_OK !=
- TALER_hash_json (wire,
- &my_h_wire))
- {
- TALER_LOG_WARNING ("Failed to parse JSON wire format specification for /deposit request\n");
- TMH_PARSE_release_data (spec);
- return TMH_RESPONSE_reply_arg_invalid (connection,
- "wire");
- }
- if (0 != memcmp (&deposit.h_wire,
- &my_h_wire,
- sizeof (struct GNUNET_HashCode)))
- {
- /* Client hashed contract differently than we did, reject */
- TMH_PARSE_release_data (spec);
- return TMH_RESPONSE_reply_arg_invalid (connection,
- "H_wire");
- }
- ks = TMH_KS_acquire ();
- dki = TMH_KS_denomination_key_lookup (ks,
- &deposit.coin.denom_pub,
- TMH_KS_DKU_DEPOSIT);
- if (NULL == dki)
- {
- TMH_KS_release (ks);
- TMH_PARSE_release_data (spec);
- return TMH_RESPONSE_reply_arg_unknown (connection,
- "denom_pub");
- }
- TALER_amount_ntoh (&deposit.deposit_fee,
- &dki->issue.properties.fee_deposit);
- TMH_KS_release (ks);
- deposit.wire = wire;
- deposit.amount_with_fee = *amount;
- if (-1 == TALER_amount_cmp (&deposit.amount_with_fee,
- &deposit.deposit_fee))
- {
- /* Total amount smaller than fee, invalid */
- TMH_PARSE_release_data (spec);
- return TMH_RESPONSE_reply_arg_invalid (connection,
- "f");
- }
- res = verify_and_execute_deposit (connection,
- &deposit);
- TMH_PARSE_release_data (spec);
- return res;
-}
-
-
-/**
- * Handle a "/deposit" request. Parses the JSON in the post to find
- * the "type" (either DIRECT_DEPOSIT or INCREMENTAL_DEPOSIT), and, if
- * successful, passes the JSON data to
- * #parse_and_handle_deposit_request() to further check the details
- * of the operation specified in the "wire" field of the JSON data.
- * If everything checks out, this will ultimately lead to the
- * "/deposit" being executed, or rejected.
- *
- * @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_DEPOSIT_handler_deposit (struct TMH_RequestHandler *rh,
- struct MHD_Connection *connection,
- void **connection_cls,
- const char *upload_data,
- size_t *upload_data_size)
-{
- json_t *json;
- json_t *wire;
- int res;
- struct TALER_Amount amount;
- struct TMH_PARSE_FieldSpecification spec[] = {
- TMH_PARSE_member_object ("wire", &wire),
- TMH_PARSE_member_amount ("f", &amount),
- 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_OK != res)
- {
- json_decref (json);
- return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
- }
- res = parse_and_handle_deposit_request (connection,
- json,
- &amount,
- wire);
- TMH_PARSE_release_data (spec);
- json_decref (json);
- return res;
-}
-
-
-/* end of taler-mint-httpd_deposit.c */