From 3d7de36cdd35fbfe95ba20c30b37cd81249b076b Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Sun, 15 Aug 2021 10:11:17 +0200
Subject: expand database plugin with logic to store wire transfer data made
 for authentication

---
 src/include/anastasis_database_plugin.h | 64 +++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)

(limited to 'src/include')

diff --git a/src/include/anastasis_database_plugin.h b/src/include/anastasis_database_plugin.h
index 44f6b55..ae414dc 100644
--- a/src/include/anastasis_database_plugin.h
+++ b/src/include/anastasis_database_plugin.h
@@ -141,6 +141,23 @@ typedef void
   const struct TALER_Amount *amount);
 
 
+/**
+ * Function called to test if a given wire transfer
+ * satisfied the authentication requirement of the
+ * IBAN plugin.
+ *
+ * @param cls closure
+ * @param credit amount that was transferred
+ * @param wire_subject subject provided in the wire transfer
+ * @return true if this wire transfer satisfied the authentication check
+ */
+typedef bool
+(*ANASTASIS_DB_AuthIbanTransfercheck)(
+  void *cls,
+  const struct TALER_Amount *credit,
+  const char *wire_subject);
+
+
 /**
  * Handle to interact with the database.
  *
@@ -714,6 +731,53 @@ struct ANASTASIS_DatabasePlugin
     const struct ANASTASIS_PaymentSecretP *payment_identifier);
 
 
+  /**
+   * Store inbound IBAN payment made for authentication.
+   *
+   * @param cls closure
+   * @param wire_reference unique identifier inside LibEuFin/Nexus
+   * @param wire_subject subject of the wire transfer
+   * @param amount how much was transferred
+   * @param debit_account account that was debited
+   * @param credit_account Anastasis operator account credited
+   * @param execution_date when was the transfer made
+   * @return transaction status
+   */
+  enum GNUNET_DB_QueryStatus
+  (*record_auth_iban_payment)(
+    void *cls,
+    uint64_t wire_reference,
+    const char *wire_subject,
+    const struct TALER_Amount *amount,
+    const char *debit_account,
+    const char *credit_account,
+    struct GNUNET_TIME_Absolute execution_date);
+
+
+  /**
+   * Function to check if we are aware of a wire transfer
+   * that satisfies the IBAN plugin's authentication check.
+   *
+   * @param cls closure
+   * @param debit_account which debit account to check
+   * @param earliest_date earliest date to check
+   * @param cb function to call on all entries found
+   * @param cb_cls closure for @a cb
+   * @return transaction status,
+   *    #GNUNET_DB_STATUS_SUCCESS_ONE_RESULT if @a cb
+   *      returned 'true' once
+   *    #GNUNET_DB_STATUS_SUCCESS_NO_RESULTS if no
+   *      wire transfers existed for which @a cb returned true
+   */
+  enum GNUNET_DB_QueryStatus
+  (*test_auth_iban_payment)(
+    void *cls,
+    const char *debit_account,
+    struct GNUNET_TIME_Absolute earliest_date,
+    ANASTASIS_DB_AuthIbanTransfercheck cb,
+    void *cb_cls);
+
+
   /**
    * Function called to remove all expired codes from the database.
    *
-- 
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