implement order claiming

1 files changed, 311 insertions, 0 deletions

diff --git a/src/testing/testing_api_cmd_claim_order.c b/src/testing/testing_api_cmd_claim_order.c
new file mode 100644
index 00000000..0cdfff0e
--- /dev/null
+++ b/src/testing/testing_api_cmd_claim_order.c
@@ -0,0 +1,311 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014-2018, 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 exchange/testing_api_cmd_claim_order.c
+ * @brief command to claim an order
+ * @author Marcello Stanisci
+ */
+#include "platform.h"
+#include <taler/taler_exchange_service.h>
+#include <taler/taler_testing_lib.h>
+#include "taler_merchant_service.h"
+#include "taler_merchant_testing_lib.h"
+
+/**
+ * State for a "order claim" CMD.  Not used by
+ * the initial claim operation.
+ */
+struct OrderClaimState
+{
+  /**
+   * The interpreter state.
+   */
+  struct TALER_TESTING_Interpreter *is;
+
+  /**
+   * URL of the merchant backend.
+   */
+  const char *merchant_url;
+
+  /**
+   * Contract terms we downloaded. Only set if we got #MHD_HTTP_OK.
+   */
+  json_t *contract_terms;
+
+  /**
+   * Hash over the contract terms. Only set if we got #MHD_HTTP_OK.
+   */
+  struct GNUNET_HashCode contract_terms_hash;
+
+  /**
+   * Signature of the merchant. Only set if we got #MHD_HTTP_OK.
+   */
+  struct TALER_MerchantSignatureP merchant_sig;
+
+  /**
+   * Public key of the merchant. Only set if we got #MHD_HTTP_OK.
+   */
+  struct TALER_MerchantPublicKeyP merchant_pub;
+
+  /**
+   * Expected status code.
+   */
+  unsigned int http_status;
+
+  /**
+   * /order/claim operation handle.
+   */
+  struct TALER_MERCHANT_OrderClaimHandle *och;
+
+  /**
+   * Reference to a order operation.  Will offer the
+   * nonce for the operation.
+   */
+  const char *order_reference;
+
+  /**
+   * Order id to claim upon.  If null, the @a order_reference
+   * will offer this value.
+   */
+  const char *order_id;
+};
+
+
+/**
+ * Free the state of a "order claim" CMD, and possibly
+ * cancel it if it did not complete.
+ *
+ * @param cls closure.
+ * @param cmd command being freed.
+ */
+static void
+order_claim_cleanup (void *cls,
+                     const struct TALER_TESTING_Command *cmd)
+{
+  struct OrderClaimState *pls = cls;
+
+  if (NULL != pls->och)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                "Command '%s' did not complete\n",
+                cmd->label);
+    TALER_MERCHANT_order_claim_cancel (pls->och);
+    pls->och = NULL;
+  }
+  if (NULL != pls->contract_terms)
+  {
+    json_decref (pls->contract_terms);
+    pls->contract_terms = NULL;
+  }
+  GNUNET_free (pls);
+}
+
+
+/**
+ * Callback for "order claim" operation, to check the
+ * response code is as expected.
+ *
+ * @param cls closure
+ * @param hr HTTP response we got
+ * @param contract_terms the contract terms; they are the
+ *        backend-filled up order minus cryptographic
+ *        information.
+ * @param sig merchant signature over the contract terms.
+ * @param hash hash code of the contract terms.
+ */
+static void
+order_claim_cb (void *cls,
+                const struct TALER_MERCHANT_HttpResponse *hr,
+                const json_t *contract_terms,
+                const struct TALER_MerchantSignatureP *sig,
+                const struct GNUNET_HashCode *hash)
+{
+  struct OrderClaimState *pls = cls;
+
+  pls->och = NULL;
+  if (pls->http_status != hr->http_status)
+    TALER_TESTING_FAIL (pls->is);
+  if (MHD_HTTP_OK == hr->http_status)
+  {
+    pls->contract_terms = json_object_get (hr->reply,
+                                           "contract_terms");
+    if (NULL == pls->contract_terms)
+      TALER_TESTING_FAIL (pls->is);
+    json_incref (pls->contract_terms);
+    pls->contract_terms_hash = *hash;
+    pls->merchant_sig = *sig;
+    {
+      const char *error_name;
+      unsigned int error_line;
+      struct GNUNET_JSON_Specification spec[] = {
+        GNUNET_JSON_spec_fixed_auto ("merchant_pub",
+                                     &pls->merchant_pub),
+        GNUNET_JSON_spec_end ()
+      };
+
+      if (GNUNET_OK !=
+          GNUNET_JSON_parse (contract_terms,
+                             spec,
+                             &error_name,
+                             &error_line))
+        TALER_TESTING_FAIL (pls->is);
+    }
+  }
+  TALER_TESTING_interpreter_next (pls->is);
+}
+
+
+/**
+ * Run the "order claim" CMD.
+ *
+ * @param cls closure.
+ * @param cmd command currently being run.
+ * @param is interpreter state.
+ */
+static void
+order_claim_run (void *cls,
+                 const struct TALER_TESTING_Command *cmd,
+                 struct TALER_TESTING_Interpreter *is)
+{
+  struct OrderClaimState *pls = cls;
+  const char *order_id;
+  const struct TALER_MerchantPublicKeyP *nonce;
+  /* Only used if we do NOT use the nonce from traits.  */
+  struct TALER_MerchantPublicKeyP dummy_nonce;
+#define GET_TRAIT_NONCE(cmd,ptr) \
+  TALER_TESTING_get_trait_merchant_pub (cmd, 1, ptr)
+
+  pls->is = is;
+  if (NULL != pls->order_id)
+  {
+    order_id = pls->order_id;
+    GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
+                                &dummy_nonce,
+                                sizeof (dummy_nonce));
+    nonce = &dummy_nonce;
+  }
+  else
+  {
+    const struct TALER_TESTING_Command *order_cmd;
+
+    order_cmd
+      = TALER_TESTING_interpreter_lookup_command (is,
+                                                  pls->order_reference);
+    if (NULL == order_cmd)
+      TALER_TESTING_FAIL (is);
+    if (GNUNET_OK !=
+        GET_TRAIT_NONCE (order_cmd,
+                         &nonce))
+    {
+      GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
+                                  &dummy_nonce,
+                                  sizeof (dummy_nonce));
+      nonce = &dummy_nonce;
+    }
+
+    if (GNUNET_OK !=
+        TALER_TESTING_get_trait_order_id (order_cmd,
+                                          0,
+                                          &order_id))
+      TALER_TESTING_FAIL (is);
+  }
+  pls->och = TALER_MERCHANT_order_claim (is->ctx,
+                                         pls->merchant_url,
+                                         order_id,
+                                         &nonce->eddsa_pub,
+                                         &order_claim_cb,
+                                         pls);
+  GNUNET_assert (NULL != pls->och);
+}
+
+
+/**
+ * Offer internal data to other commands.
+ *
+ * @param cls closure
+ * @param ret[out] result (could be anything)
+ * @param trait name of the trait
+ * @param index index number of the object to extract.
+ * @return #GNUNET_OK on success
+ */
+static int
+order_claim_traits (void *cls,
+                    const void **ret,
+                    const char *trait,
+                    unsigned int index)
+{
+  struct OrderClaimState *pls = cls;
+  struct TALER_TESTING_Trait traits[] = {
+    TALER_TESTING_make_trait_contract_terms (0,
+                                             pls->contract_terms),
+    TALER_TESTING_make_trait_h_contract_terms (0,
+                                               &pls->contract_terms_hash),
+    TALER_TESTING_make_trait_merchant_sig (0,
+                                           &pls->merchant_sig),
+    TALER_TESTING_make_trait_merchant_pub (0,
+                                           &pls->merchant_pub),
+    TALER_TESTING_trait_end ()
+  };
+
+  return TALER_TESTING_get_trait (traits,
+                                  ret,
+                                  trait,
+                                  index);
+}
+
+
+/**
+ * Make a "order claim" command.
+ *
+ * @param label command label.
+ * @param merchant_url base URL of the merchant backend
+ *        serving the order claim request.
+ * @param http_status expected HTTP response code.
+ * @param order_reference reference to a POST order CMD, can be NULL if @a order_id given
+ * @param order_id order id to lookup, can be NULL (then we use @a order_reference)
+ * @return the command.
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_merchant_claim_order (
+  const char *label,
+  const char *merchant_url,
+  unsigned int http_status,
+  const char *order_reference,
+  const char *order_id)
+{
+  struct OrderClaimState *pls;
+
+  pls = GNUNET_new (struct OrderClaimState);
+  pls->http_status = http_status;
+  pls->order_reference = order_reference;
+  pls->merchant_url = merchant_url;
+  pls->order_id = order_id;
+  {
+    struct TALER_TESTING_Command cmd = {
+      .cls = pls,
+      .label = label,
+      .run = &order_claim_run,
+      .cleanup = &order_claim_cleanup,
+      .traits = &order_claim_traits
+    };
+
+    return cmd;
+  }
+}