[taler-exchange] branch master updated: adding kyclogic plugin template

[gnunet]

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grothoff pushed a commit to branch master
in repository exchange.

The following commit(s) were added to refs/heads/master by this push:
     new b5330266 adding kyclogic plugin template
b5330266 is described below

commit b533026632963efcb01b9a193aa45806e02aafa1
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Fri Aug 5 15:08:47 2022 +0200

    adding kyclogic plugin template
---
 configure.ac                                |   1 +
 src/Makefile.am                             |   1 +
 src/exchange/taler-exchange-httpd_kyc.h     |   1 +
 src/exchangedb/plugin_exchangedb_postgres.c |   1 +
 src/include/taler_exchangedb_plugin.h       |   1 +
 src/kyclogic/Makefile.am                    |  36 ++++
 src/kyclogic/kyclogic-oauth2.conf           |   0
 src/kyclogic/kyclogic.conf                  |   0
 src/kyclogic/plugin_kyclogic_oauth2.c       | 265 ++++++++++++++++++++++++++++
 src/kyclogic/plugin_kyclogic_template.c     | 265 ++++++++++++++++++++++++++++
 10 files changed, 571 insertions(+)

diff --git a/configure.ac b/configure.ac
index f91973fe..bbb0fabf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -533,6 +533,7 @@ AC_CONFIG_FILES([Makefile
                  src/exchange-tools/Makefile
                  src/extensions/Makefile
                  src/lib/Makefile
+                 src/kyclogic/Makefile
                  src/testing/Makefile
                  src/benchmark/Makefile
                  src/include/Makefile
diff --git a/src/Makefile.am b/src/Makefile.am
index 5d46850c..05c0b742 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -25,6 +25,7 @@ SUBDIRS = \
   mhd \
   bank-lib \
   exchangedb \
+  kyclogic \
   exchange \
   auditordb \
   auditor \
diff --git a/src/exchange/taler-exchange-httpd_kyc.h 
b/src/exchange/taler-exchange-httpd_kyc.h
index ea409c75..1df264c1 100644
--- a/src/exchange/taler-exchange-httpd_kyc.h
+++ b/src/exchange/taler-exchange-httpd_kyc.h
@@ -22,6 +22,7 @@
 #define TALER_EXCHANGE_HTTPD_KYC_H
 
 #include <microhttpd.h>
+#include "taler_exchangedb_plugin.h"
 #include "taler_kyclogic_plugin.h"
 
 
diff --git a/src/exchangedb/plugin_exchangedb_postgres.c 
b/src/exchangedb/plugin_exchangedb_postgres.c
index e9aa7c83..7c066784 100644
--- a/src/exchangedb/plugin_exchangedb_postgres.c
+++ b/src/exchangedb/plugin_exchangedb_postgres.c
@@ -16589,6 +16589,7 @@ postgres_insert_kyc_requirement_for_account (
  * expiration data.
  *
  * @param cls closure
+ * @param legi_row row to select by
  * @param provider_section provider that must be checked
  * @param h_payto account that must be KYC'ed
  * @param provider_account_id provider account ID
diff --git a/src/include/taler_exchangedb_plugin.h 
b/src/include/taler_exchangedb_plugin.h
index bf745175..5411fbe1 100644
--- a/src/include/taler_exchangedb_plugin.h
+++ b/src/include/taler_exchangedb_plugin.h
@@ -5664,6 +5664,7 @@ struct TALER_EXCHANGEDB_Plugin
    * expiration data.
    *
    * @param cls closure
+   * @param legi_row row to select by
    * @param provider_section provider that must be checked
    * @param h_payto account that must be KYC'ed
    * @param provider_account_id provider account ID
diff --git a/src/kyclogic/Makefile.am b/src/kyclogic/Makefile.am
new file mode 100644
index 00000000..4a4f60a4
--- /dev/null
+++ b/src/kyclogic/Makefile.am
@@ -0,0 +1,36 @@
+# This Makefile.am is in the public domain
+AM_CPPFLAGS = -I$(top_srcdir)/src/include
+
+if USE_COVERAGE
+  AM_CFLAGS = --coverage -O0
+  XLIB = -lgcov
+endif
+
+pkgcfgdir = $(prefix)/share/taler/config.d/
+
+pkgcfg_DATA = \
+  kyclogic.conf \
+  kyclogic-oauth2.conf
+
+EXTRA_DIST = \
+  kyclogic.conf \
+  kyclogic-oauth2.conf
+
+plugindir = $(libdir)/taler
+
+plugin_LTLIBRARIES = \
+  libtaler_plugin_kyclogic_oauth2.la
+
+libtaler_plugin_kyclogic_oauth2_la_SOURCES = \
+  plugin_kyclogic_oauth2.c
+libtaler_plugin_kyclogic_oauth2_la_LIBADD = \
+  $(LTLIBINTL)
+libtaler_plugin_kyclogic_oauth2_la_LDFLAGS = \
+  $(TALER_PLUGIN_LDFLAGS) \
+  $(top_builddir)/src/json/libtalerjson.la \
+  $(top_builddir)/src/util/libtalerutil.la \
+  -lgnunetutil \
+  -ljansson \
+  $(XLIB)
+
+AM_TESTS_ENVIRONMENT=export TALER_PREFIX=$${TALER_PREFIX:-@libdir@};export 
PATH=$${TALER_PREFIX:-@prefix@}/bin:$$PATH;
diff --git a/src/kyclogic/kyclogic-oauth2.conf 
b/src/kyclogic/kyclogic-oauth2.conf
new file mode 100644
index 00000000..e69de29b
diff --git a/src/kyclogic/kyclogic.conf b/src/kyclogic/kyclogic.conf
new file mode 100644
index 00000000..e69de29b
diff --git a/src/kyclogic/plugin_kyclogic_oauth2.c 
b/src/kyclogic/plugin_kyclogic_oauth2.c
new file mode 100644
index 00000000..c17e9f8a
--- /dev/null
+++ b/src/kyclogic/plugin_kyclogic_oauth2.c
@@ -0,0 +1,265 @@
+/*
+  This file is part of GNU Taler
+  Copyright (C) 2022 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.GPL.  If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file plugin_kyclogic_oauth2.c
+ * @brief oauth2.0 based authentication flow logic
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_kyclogic_plugin.h"
+#include <taler/taler_mhd_lib.h>
+#include <taler/taler_json_lib.h>
+#include <regex.h>
+#include "taler_util.h"
+
+/**
+ * Keeps the plugin-specific state for
+ * a given configuration section.
+ */
+struct TALER_KYCLOGIC_ProviderDetails
+{
+
+};
+
+
+/**
+ * Handle for an initiation operation.
+ */
+struct TALER_KYCLOGIC_InitiateHandle
+{
+};
+
+
+/**
+ * Handle for an KYC proof operation.
+ */
+struct TALER_KYCLOGIC_ProofHandle
+{
+};
+
+
+/**
+ * Handle for an KYC Web hook operation.
+ */
+struct TALER_KYCLOGIC_WebhookHandle
+{
+};
+
+
+/**
+ * Saves the state of a plugin.
+ */
+struct PluginState
+{
+
+  /**
+   * Our global configuration.
+   */
+  const struct GNUNET_CONFIGURATION_Handle *cfg;
+
+};
+
+
+/**
+ * Load the configuration of the KYC provider.
+ *
+ * @param cls closure
+ * @param provider_section_name configuration section to parse
+ * @return NULL if configuration is invalid
+ */
+static struct TALER_KYCLOGIC_ProviderDetails *
+oauth2_load_configuration (void *cls,
+                           const char *provider_section_name)
+{
+  return NULL;
+}
+
+
+/**
+ * Release configuration resources previously loaded
+ *
+ * @param[in] pd configuration to release
+ */
+static void
+oauth2_unload_configuration (struct TALER_KYCLOGIC_ProviderDetails *pd)
+{
+}
+
+
+/**
+ * Initiate KYC check.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param pd provider configuration details
+ * @param account_id which account to trigger process for
+ * @param cb function to call with the result
+ * @param cb_cls closure for @a cb
+ * @return handle to cancel operation early
+ */
+static struct TALER_KYCLOGIC_InitiateHandle *
+oauth2_initiate (void *cls,
+                 const struct TALER_KYCLOGIC_ProviderDetails *pd,
+                 const struct TALER_PaytoHashP *account_id,
+                 TALER_KYCLOGIC_InitiateCallback cb,
+                 void *cb_cls)
+{
+  return NULL;
+}
+
+
+/**
+ * Cancel KYC check initiation.
+ *
+ * @param[in] ih handle of operation to cancel
+ */
+static void
+oauth2_initiate_cancel (struct TALER_KYCLOGIC_InitiateHandle *ih)
+{
+}
+
+
+/**
+ * Check KYC status and return status to human.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param pd provider configuration details
+ * @param account_id which account to trigger process for
+ * @param cb function to call with the result
+ * @param cb_cls closure for @a cb
+ * @return handle to cancel operation early
+ */
+static struct TALER_KYCLOGIC_ProofHandle *
+oauth2_proof (void *cls,
+              const struct TALER_KYCLOGIC_ProviderDetails *pd,
+              const struct TALER_PaytoHashP *account_id,
+              const char *provider_user_id,
+              const char *provider_legitimization_id,
+              TALER_KYCLOGIC_ProofCallback cb,
+              void *cb_cls)
+{
+  return NULL;
+}
+
+
+/**
+ * Cancel KYC proof.
+ *
+ * @param[in] ph handle of operation to cancel
+ */
+static void
+oauth2_proof_cancel (struct TALER_KYCLOGIC_ProofHandle *ph)
+{
+}
+
+
+/**
+ * Check KYC status and return result for Webhook.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param pd provider configuration details
+ * @param plc callback to lookup accounts with
+ * @param plc_cls closure for @a plc
+ * @param http_method HTTP method used for the webhook
+ * @param url_path rest of the URL after `/kyc-webhook/`
+ * @param connection MHD connection object (for HTTP headers)
+ * @param body_size number of bytes in @a body
+ * @param body HTTP request body
+ * @param cb function to call with the result
+ * @param cb_cls closure for @a cb
+ * @return handle to cancel operation early
+ */
+static struct TALER_KYCLOGIC_InitiateHandle *
+oauth2_webhook (void *cls,
+                const struct TALER_KYCLOGIC_ProviderDetails *pd,
+                TALER_KYCLOGIC_ProviderLookupCallback plc,
+                void *plc_cls,
+                const char *http_method,
+                const char *url_path,
+                struct MHD_Connection *connection,
+                size_t body_size,
+                const void *body,
+                TALER_KYCLOGIC_WebhookCallback cb,
+                void *cb_cls)
+{
+  GNUNET_break_op (0);
+  return NULL;
+}
+
+
+/**
+ * Cancel KYC webhook execution.
+ *
+ * @param[in] wh handle of operation to cancel
+ */
+static void
+oauth2_webhook_cancel (struct TALER_KYCLOGIC_WebhookHandle *wh)
+{
+}
+
+
+/**
+ * Initialize OAuth2.0 KYC logic plugin
+ *
+ * @param cls a configuration instance
+ * @return NULL on error, otherwise a `struct TALER_KYCLOGIC_Plugin`
+ */
+void *
+libtaler_plugin_kyclogic_oauth2_init (void *cls)
+{
+  const struct GNUNET_CONFIGURATION_Handle *cfg = cls;
+  struct TALER_KYCLOGIC_Plugin *plugin;
+  struct PluginState *ps;
+
+  ps = GNUNET_new (struct PluginState);
+  ps->cfg = cfg;
+  plugin = GNUNET_new (struct TALER_KYCLOGIC_Plugin);
+  plugin->cls = ps;
+  plugin->load_configuration
+    = &oauth2_load_configuration;
+  plugin->unload_configuration
+    = &oauth2_unload_configuration;
+  plugin->initiate
+    = &oauth2_initiate;
+  plugin->initiate_cancel
+    = &oauth2_initiate_cancel;
+  plugin->proof
+    = &oauth2_proof;
+  plugin->proof_cancel
+    = &oauth2_proof_cancel;
+  plugin->webhook
+    = &oauth2_webhook;
+  plugin->webhook_cancel
+    = &oauth2_webhook_cancel;
+  return plugin;
+}
+
+
+/**
+ * Unload authorization plugin
+ *
+ * @param cls a `struct TALER_KYCLOGIC_Plugin`
+ * @return NULL (always)
+ */
+void *
+libtaler_plugin_kyclogic_oauth2_done (void *cls)
+{
+  struct TALER_KYCLOGIC_Plugin *plugin = cls;
+  struct PluginState *ps = plugin->cls;
+
+  GNUNET_free (ps);
+  GNUNET_free (plugin);
+  return NULL;
+}
diff --git a/src/kyclogic/plugin_kyclogic_template.c 
b/src/kyclogic/plugin_kyclogic_template.c
new file mode 100644
index 00000000..ff325c0d
--- /dev/null
+++ b/src/kyclogic/plugin_kyclogic_template.c
@@ -0,0 +1,265 @@
+/*
+  This file is part of GNU Taler
+  Copyright (C) 2022 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.GPL.  If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file plugin_kyclogic_template.c
+ * @brief template for an authentication flow logic
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_kyclogic_plugin.h"
+#include <taler/taler_mhd_lib.h>
+#include <taler/taler_json_lib.h>
+#include <regex.h>
+#include "taler_util.h"
+
+/**
+ * Keeps the plugin-specific state for
+ * a given configuration section.
+ */
+struct TALER_KYCLOGIC_ProviderDetails
+{
+
+};
+
+
+/**
+ * Handle for an initiation operation.
+ */
+struct TALER_KYCLOGIC_InitiateHandle
+{
+};
+
+
+/**
+ * Handle for an KYC proof operation.
+ */
+struct TALER_KYCLOGIC_ProofHandle
+{
+};
+
+
+/**
+ * Handle for an KYC Web hook operation.
+ */
+struct TALER_KYCLOGIC_WebhookHandle
+{
+};
+
+
+/**
+ * Saves the state of a plugin.
+ */
+struct PluginState
+{
+
+  /**
+   * Our global configuration.
+   */
+  const struct GNUNET_CONFIGURATION_Handle *cfg;
+
+};
+
+
+/**
+ * Load the configuration of the KYC provider.
+ *
+ * @param cls closure
+ * @param provider_section_name configuration section to parse
+ * @return NULL if configuration is invalid
+ */
+static struct TALER_KYCLOGIC_ProviderDetails *
+template_load_configuration (void *cls,
+                             const char *provider_section_name)
+{
+  return NULL;
+}
+
+
+/**
+ * Release configuration resources previously loaded
+ *
+ * @param[in] pd configuration to release
+ */
+static void
+template_unload_configuration (struct TALER_KYCLOGIC_ProviderDetails *pd)
+{
+}
+
+
+/**
+ * Initiate KYC check.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param pd provider configuration details
+ * @param account_id which account to trigger process for
+ * @param cb function to call with the result
+ * @param cb_cls closure for @a cb
+ * @return handle to cancel operation early
+ */
+static struct TALER_KYCLOGIC_InitiateHandle *
+template_initiate (void *cls,
+                   const struct TALER_KYCLOGIC_ProviderDetails *pd,
+                   const struct TALER_PaytoHashP *account_id,
+                   TALER_KYCLOGIC_InitiateCallback cb,
+                   void *cb_cls)
+{
+  return NULL;
+}
+
+
+/**
+ * Cancel KYC check initiation.
+ *
+ * @param[in] ih handle of operation to cancel
+ */
+static void
+template_initiate_cancel (struct TALER_KYCLOGIC_InitiateHandle *ih)
+{
+}
+
+
+/**
+ * Check KYC status and return status to human.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param pd provider configuration details
+ * @param account_id which account to trigger process for
+ * @param cb function to call with the result
+ * @param cb_cls closure for @a cb
+ * @return handle to cancel operation early
+ */
+static struct TALER_KYCLOGIC_ProofHandle *
+template_proof (void *cls,
+                const struct TALER_KYCLOGIC_ProviderDetails *pd,
+                const struct TALER_PaytoHashP *account_id,
+                const char *provider_user_id,
+                const char *provider_legitimization_id,
+                TALER_KYCLOGIC_ProofCallback cb,
+                void *cb_cls)
+{
+  return NULL;
+}
+
+
+/**
+ * Cancel KYC proof.
+ *
+ * @param[in] ph handle of operation to cancel
+ */
+static void
+template_proof_cancel (struct TALER_KYCLOGIC_ProofHandle *ph)
+{
+}
+
+
+/**
+ * Check KYC status and return result for Webhook.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param pd provider configuration details
+ * @param plc callback to lookup accounts with
+ * @param plc_cls closure for @a plc
+ * @param http_method HTTP method used for the webhook
+ * @param url_path rest of the URL after `/kyc-webhook/`
+ * @param connection MHD connection object (for HTTP headers)
+ * @param body_size number of bytes in @a body
+ * @param body HTTP request body
+ * @param cb function to call with the result
+ * @param cb_cls closure for @a cb
+ * @return handle to cancel operation early
+ */
+static struct TALER_KYCLOGIC_InitiateHandle *
+template_webhook (void *cls,
+                  const struct TALER_KYCLOGIC_ProviderDetails *pd,
+                  TALER_KYCLOGIC_ProviderLookupCallback plc,
+                  void *plc_cls,
+                  const char *http_method,
+                  const char *url_path,
+                  struct MHD_Connection *connection,
+                  size_t body_size,
+                  const void *body,
+                  TALER_KYCLOGIC_WebhookCallback cb,
+                  void *cb_cls)
+{
+  GNUNET_break_op (0);
+  return NULL;
+}
+
+
+/**
+ * Cancel KYC webhook execution.
+ *
+ * @param[in] wh handle of operation to cancel
+ */
+static void
+template_webhook_cancel (struct TALER_KYCLOGIC_WebhookHandle *wh)
+{
+}
+
+
+/**
+ * Initialize Template.0 KYC logic plugin
+ *
+ * @param cls a configuration instance
+ * @return NULL on error, otherwise a `struct TALER_KYCLOGIC_Plugin`
+ */
+void *
+libtaler_plugin_kyclogic_template_init (void *cls)
+{
+  const struct GNUNET_CONFIGURATION_Handle *cfg = cls;
+  struct TALER_KYCLOGIC_Plugin *plugin;
+  struct PluginState *ps;
+
+  ps = GNUNET_new (struct PluginState);
+  ps->cfg = cfg;
+  plugin = GNUNET_new (struct TALER_KYCLOGIC_Plugin);
+  plugin->cls = ps;
+  plugin->load_configuration
+    = &template_load_configuration;
+  plugin->unload_configuration
+    = &template_unload_configuration;
+  plugin->initiate
+    = &template_initiate;
+  plugin->initiate_cancel
+    = &template_initiate_cancel;
+  plugin->proof
+    = &template_proof;
+  plugin->proof_cancel
+    = &template_proof_cancel;
+  plugin->webhook
+    = &template_webhook;
+  plugin->webhook_cancel
+    = &template_webhook_cancel;
+  return plugin;
+}
+
+
+/**
+ * Unload authorization plugin
+ *
+ * @param cls a `struct TALER_KYCLOGIC_Plugin`
+ * @return NULL (always)
+ */
+void *
+libtaler_plugin_kyclogic_template_done (void *cls)
+{
+  struct TALER_KYCLOGIC_Plugin *plugin = cls;
+  struct PluginState *ps = plugin->cls;
+
+  GNUNET_free (ps);
+  GNUNET_free (plugin);
+  return NULL;
+}

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