commit 6f115b9c5e08c8192fb15e66b10c644a8a18b3f2
parent fc07b2f9d447ed3d1c0e6bcc902b1bd2b7f0ff3d
Author: Matyja Lukas Adam <lukas.matyja@students.bfh.ch>
Date: Tue, 7 May 2024 12:22:17 +0200
[donau] add csr route (to be changed)
Diffstat:
3 files changed, 218 insertions(+), 4 deletions(-)
diff --git a/src/donau/donau-httpd.c b/src/donau/donau-httpd.c
@@ -494,16 +494,21 @@ handle_mhd_request (void *cls,
.url = "charities",
.method = MHD_HTTP_METHOD_DELETE,
.handler.delete = &DH_handler_charity_delete,
- .nargs = 1,
- .nargs_is_upper_bound = true
+ .nargs = 1
},
+ // /* POST get csr values*/
+ // {
+ // .url = "csr-issue",
+ // .method = MHD_HTTP_METHOD_POST,
+ // .handler.post = &DH_handler_csr_issue,
+ // .nargs = 0
+ // },
/* POST batch issue receipts */
{
.url = "batch-issue",
.method = MHD_HTTP_METHOD_POST,
.handler.post = &DH_handler_issue_receipts_post,
- .nargs = 1,
- .nargs_is_upper_bound = true
+ .nargs = 1
},
/* POST submitted receipts */
{
diff --git a/src/donau/donau-httpd_csr.c b/src/donau/donau-httpd_csr.c
@@ -0,0 +1,166 @@
+/*
+ This file is part of TALER
+ Copyright (C) 2024 Taler Systems SA
+
+ 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,
+ see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file donau-httpd_csr.c
+ * @brief Handle /csr requests
+ * @author Lucien Heuzeveldt
+ * @author Gian Demarmles
+ * @author Christian Grothoff
+ */
+#include <taler/platform.h>
+#include <gnunet/gnunet_util_lib.h>
+#include <jansson.h>
+#include <microhttpd.h>
+#include <pthread.h>
+#include <taler/taler_json_lib.h>
+#include <taler/taler_mhd_lib.h>
+#include <taler/taler_signatures.h>
+#include "donaudb_plugin.h"
+#include "donau-httpd_csr.h"
+
+
+/**
+ * Maximum number of csr records we return per request.
+ */
+#define MAX_RECORDS 1024
+
+
+MHD_RESULT
+DH_handler_csr_issue (struct DH_RequestContext *rc,
+ const json_t *root,
+ const char *const args[])
+{
+ struct GNUNET_CRYPTO_CsSessionNonce nonce;
+ struct TALER_DenominationHashP denom_pub_hash;
+ struct GNUNET_CRYPTO_BlindingInputValues ewv = {
+ .cipher = GNUNET_CRYPTO_BSA_CS
+ };
+ struct GNUNET_JSON_Specification spec[] = {
+ GNUNET_JSON_spec_fixed_auto ("nonce",
+ &nonce),
+ GNUNET_JSON_spec_fixed_auto ("denom_pub_hash",
+ &denom_pub_hash),
+ GNUNET_JSON_spec_end ()
+ };
+ struct TEH_DenominationKey *dk;
+
+ (void) args;
+ {
+ enum GNUNET_GenericReturnValue res;
+
+ res = TALER_MHD_parse_json_data (rc->connection,
+ root,
+ spec);
+ if (GNUNET_OK != res)
+ return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
+ }
+
+ {
+ struct TEH_KeyStateHandle *ksh;
+
+ ksh = TEH_keys_get_state ();
+ if (NULL == ksh)
+ {
+ return TALER_MHD_reply_with_error (rc->connection,
+ MHD_HTTP_INTERNAL_SERVER_ERROR,
+ TALER_EC_EXCHANGE_GENERIC_KEYS_MISSING,
+ NULL);
+ }
+ dk = TEH_keys_denomination_by_hash_from_state (ksh,
+ &denom_pub_hash,
+ NULL,
+ NULL);
+ if (NULL == dk)
+ {
+ return TEH_RESPONSE_reply_unknown_denom_pub_hash (
+ rc->connection,
+ &denom_pub_hash);
+ }
+ if (GNUNET_TIME_absolute_is_past (dk->meta.expire_withdraw.abs_time))
+ {
+ /* This denomination is past the expiration time for withdraws/refreshes*/
+ return TEH_RESPONSE_reply_expired_denom_pub_hash (
+ rc->connection,
+ &denom_pub_hash,
+ TALER_EC_EXCHANGE_GENERIC_DENOMINATION_EXPIRED,
+ "csr-withdraw");
+ }
+ if (GNUNET_TIME_absolute_is_future (dk->meta.start.abs_time))
+ {
+ /* This denomination is not yet valid, no need to check
+ for idempotency! */
+ return TEH_RESPONSE_reply_expired_denom_pub_hash (
+ rc->connection,
+ &denom_pub_hash,
+ TALER_EC_EXCHANGE_GENERIC_DENOMINATION_VALIDITY_IN_FUTURE,
+ "csr-withdraw");
+ }
+ if (dk->recoup_possible)
+ {
+ /* This denomination has been revoked */
+ return TEH_RESPONSE_reply_expired_denom_pub_hash (
+ rc->connection,
+ &denom_pub_hash,
+ TALER_EC_EXCHANGE_GENERIC_DENOMINATION_REVOKED,
+ "csr-withdraw");
+ }
+ if (GNUNET_CRYPTO_BSA_CS !=
+ dk->denom_pub.bsign_pub_key->cipher)
+ {
+ /* denomination is valid but not for CS */
+ return TEH_RESPONSE_reply_invalid_denom_cipher_for_operation (
+ rc->connection,
+ &denom_pub_hash);
+ }
+ }
+
+ /* derive r_pub */
+ {
+ enum TALER_ErrorCode ec;
+ const struct TEH_CsDeriveData cdd = {
+ .h_denom_pub = &denom_pub_hash,
+ .nonce = &nonce
+ };
+
+ ec = TEH_keys_denomination_cs_r_pub (&cdd,
+ false,
+ &ewv.details.cs_values);
+ if (TALER_EC_NONE != ec)
+ {
+ GNUNET_break (0);
+ return TALER_MHD_reply_with_ec (rc->connection,
+ ec,
+ NULL);
+ }
+ }
+ {
+ struct TALER_ExchangeWithdrawValues exw = {
+ .blinding_inputs = &ewv
+ };
+
+ return TALER_MHD_REPLY_JSON_PACK (
+ rc->connection,
+ MHD_HTTP_OK,
+ TALER_JSON_pack_exchange_withdraw_values ("ewv",
+ &exw));
+ }
+}
+
+
+/* end of donau-httpd_csr.c */
diff --git a/src/donau/donau-httpd_csr.h b/src/donau/donau-httpd_csr.h
@@ -0,0 +1,43 @@
+/*
+ This file is part of TALER
+ Copyright (C) 2024 Taler Systems SA
+
+ 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, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file donau-httpd_csr.h
+ * @brief Handle /csr-* requests
+ * @author Lucien Heuzeveldt
+ * @author Gian Demarmles
+ */
+#ifndef DONAU_HTTPD_CSR_H
+#define DONAU_HTTPD_CSR_H
+
+#include <microhttpd.h>
+#include "donau-httpd.h"
+#include "donaudb_plugin.h"
+
+
+/**
+ * Handle a "/csr-issue" request.
+ *
+ * @param rc request context
+ * @param root uploaded JSON data
+ * @param args empty array
+ * @return MHD result code
+ */
+MHD_RESULT
+DH_handler_csr_issue (struct DH_RequestContext *rc,
+ const json_t *root,
+ const char *const args[]);
+
+#endif
