towards implementing the /paid handler (DB interaction missing), for #5210

4 files changed, 161 insertions, 0 deletions

diff --git a/src/backend/Makefile.am b/src/backend/Makefile.am
index bb3f2bf9..27eaca19 100644
--- a/src/backend/Makefile.am
+++ b/src/backend/Makefile.am
@@ -83,6 +83,8 @@ taler_merchant_httpd_SOURCES = \
     taler-merchant-httpd_post-orders-ID-claim.h \
   taler-merchant-httpd_post-orders-ID-pay.c \
     taler-merchant-httpd_post-orders-ID-pay.h \
+  taler-merchant-httpd_post-orders-ID-paid.c \
+    taler-merchant-httpd_post-orders-ID-paid.h \
   taler-merchant-httpd_post-tips-ID-pickup.c \
     taler-merchant-httpd_post-tips-ID-pickup.h \
   taler-merchant-httpd_reserves.c \
diff --git a/src/backend/taler-merchant-httpd.c b/src/backend/taler-merchant-httpd.c
index cbc7774b..1cf398e2 100644
--- a/src/backend/taler-merchant-httpd.c
+++ b/src/backend/taler-merchant-httpd.c
@@ -57,6 +57,7 @@
 #include "taler-merchant-httpd_private-post-transfers.h"
 #include "taler-merchant-httpd_post-orders-ID-abort.h"
 #include "taler-merchant-httpd_post-orders-ID-claim.h"
+#include "taler-merchant-httpd_post-orders-ID-paid.h"
 #include "taler-merchant-httpd_post-orders-ID-pay.h"
 #include "taler-merchant-httpd_post-tips-ID-pickup.h"
 #include "taler-merchant-httpd_reserves.h"
diff --git a/src/backend/taler-merchant-httpd_post-orders-ID-paid.c b/src/backend/taler-merchant-httpd_post-orders-ID-paid.c
new file mode 100644
index 00000000..45f13c45
--- /dev/null
+++ b/src/backend/taler-merchant-httpd_post-orders-ID-paid.c
@@ -0,0 +1,118 @@
+/*
+  This file is part of TALER
+  (C) 2014-2020 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 General Public License for more details.
+
+  You should have received a copy of the GNU General Public
+  License along with TALER; see the file COPYING.  If not,
+  see <http://www.gnu.org/licenses/>
+*/
+
+/**
+ * @file backend/taler-merchant-httpd_post-orders-ID-paid.c
+ * @brief handling of POST /orders/$ID/paid requests
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <taler/taler_signatures.h>
+#include <taler/taler_json_lib.h>
+#include <taler/taler_exchange_service.h>
+#include "taler-merchant-httpd_post-orders-ID-paid.h"
+
+
+/**
+ * Process a proof of payment for a paid contract.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] hc context with further information about the request
+ * @return MHD result code
+ */
+MHD_RESULT
+TMH_post_orders_ID_paid (const struct TMH_RequestHandler *rh,
+                         struct MHD_Connection *connection,
+                         struct TMH_HandlerContext *hc)
+{
+  struct PaymentResponsePS pr = {
+    .purpose.purpose = htonl (TALER_SIGNATURE_MERCHANT_PAYMENT_OK),
+    .purpose.size = htonl (sizeof (pr))
+  };
+  struct TALER_MerchantSignatureP merchant_sig;
+
+  {
+    struct GNUNET_JSON_Specification spec[] = {
+      GNUNET_JSON_spec_fixed_auto ("h_contract_terms",
+                                   &pr.h_contract_terms),
+      GNUNET_JSON_spec_fixed_auto ("merchant_sig",
+                                   &merchant_sig),
+      GNUNET_JSON_spec_end ()
+    };
+    enum GNUNET_GenericReturnValue res;
+
+    res = TALER_MHD_parse_json_data (connection,
+                                     hc->request_body,
+                                     spec);
+    if (GNUNET_YES != res)
+    {
+      GNUNET_break_op (0);
+      return (GNUNET_NO == res)
+             ? MHD_YES
+             : MHD_NO;
+    }
+  }
+
+#if FIXME
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MERCHANT_PAYMENT_OK,
+                                  &pr,
+                                  &merchant_sig.eddsa_sig,
+                                  &hc->instance->merchant_pub.eddsa_pub))
+  {
+    GNUNET_break_op (0);
+    return TALER_MHD_reply_json_pack (
+      connection,
+      MHD_HTTP_FORBIDDEN,
+      "{s:s, s:I}",
+      "hint", "deposit signature invalid",
+      "code", (json_int_t) TALER_EC_PAID_SIGNATURE_INVALID);
+  }
+
+  // FIXME: check that h_contract_terms matches
+  // this order-id (and that the order is known)
+  if (0)
+  {
+    return TALER_MHD_reply_json_pack (
+      connection,
+      MHD_HTTP_NOT_FOUND,
+      "{s:s, s:I}",
+      "hint", "order unknwown",
+      "code", (json_int_t) TALER_EC_PAID_ORDER_UNKNOWN);
+  }
+  if (0)
+  {
+    return TALER_MHD_reply_json_pack (
+      connection,
+      MHD_HTTP_CONFLICT,
+      "{s:s, s:I}",
+      "hint", "contract hash does not match this order",
+      "code", (json_int_t) TALER_EC_PAID_CONTRACT_HASH_MISMATCH);
+  }
+#endif
+  return TALER_MHD_reply_static (connection,
+                                 MHD_HTTP_NO_CONTENT,
+                                 NULL,
+                                 NULL,
+                                 0);
+}
+
+
+/* end of taler-merchant-httpd_post-orders-ID-paid.c */
diff --git a/src/backend/taler-merchant-httpd_post-orders-ID-paid.h b/src/backend/taler-merchant-httpd_post-orders-ID-paid.h
new file mode 100644
index 00000000..fc03b7d4
--- /dev/null
+++ b/src/backend/taler-merchant-httpd_post-orders-ID-paid.h
@@ -0,0 +1,40 @@
+/*
+  This file is part of TALER
+  (C) 2020 Taler Systems SA
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU 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 General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file backend/taler-merchant-httpd_post-orders-ID-paid.h
+ * @brief headers for POST /orders/$ID/paid handler
+ * @author Christian Grothoff
+ */
+#ifndef TALER_EXCHANGE_HTTPD_POST_ORDERS_ID_PAID_H
+#define TALER_EXCHANGE_HTTPD_POST_ORDERS_ID_PAID_H
+#include <microhttpd.h>
+#include "taler-merchant-httpd.h"
+
+
+/**
+ * Process proof of payment for a paid order.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] hc context with further information about the request
+ * @return MHD result code
+ */
+MHD_RESULT
+TMH_post_orders_ID_paid (const struct TMH_RequestHandler *rh,
+                         struct MHD_Connection *connection,
+                         struct TMH_HandlerContext *hc);
+
+#endif