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[GNUnet-SVN] [gnunet] 41/45: -changes for using token endpoint & added t


From: gnunet
Subject: [GNUnet-SVN] [gnunet] 41/45: -changes for using token endpoint & added token endpoint
Date: Sun, 25 Feb 2018 16:25:45 +0100

This is an automated email from the git hooks/post-receive script.

martin-schanzenbach pushed a commit to branch master
in repository gnunet.

commit ddbd4e85b1128d2547d551b885eef01bfab5046d
Author: Phil <address@hidden>
AuthorDate: Mon Feb 5 13:58:16 2018 +0100

    -changes for using token endpoint & added token endpoint
---
 src/identity-attribute/identity_attribute.c        |  28 ++
 src/identity-provider/jwt.c                        |  31 +-
 src/identity-provider/jwt.h                        |   9 +
 .../plugin_rest_identity_provider.c                | 449 +++++++++------------
 src/identity-provider/test_idp.conf                |   5 +-
 src/include/gnunet_identity_attribute_lib.h        |   6 +
 6 files changed, 254 insertions(+), 274 deletions(-)

diff --git a/src/identity-attribute/identity_attribute.c 
b/src/identity-attribute/identity_attribute.c
index cf50d058e..0111668fe 100644
--- a/src/identity-attribute/identity_attribute.c
+++ b/src/identity-attribute/identity_attribute.c
@@ -240,6 +240,34 @@ GNUNET_IDENTITY_ATTRIBUTE_claim_new (const char* attr_name,
   return attr;
 }
 
+/**
+ * Add a new claim list entry.
+ *
+ * @param claim_list the attribute name
+ * @param attr_name the attribute name
+ * @param type the attribute type
+ * @param data the attribute value
+ * @param data_size the attribute value size
+ * @return
+ */
+void
+GNUNET_IDENTITY_ATTRIBUTE_list_add (struct GNUNET_IDENTITY_ATTRIBUTE_ClaimList 
*claim_list,
+                                   const char* attr_name,
+                                   uint32_t type,
+                                   const void* data,
+                                   size_t data_size)
+{
+  struct GNUNET_IDENTITY_ATTRIBUTE_ClaimListEntry *le;
+  le = GNUNET_new (struct GNUNET_IDENTITY_ATTRIBUTE_ClaimListEntry);
+  le->claim = GNUNET_IDENTITY_ATTRIBUTE_claim_new (attr_name,
+                                              type,
+                                              data,
+                                              data_size);
+  GNUNET_CONTAINER_DLL_insert (claim_list->list_head,
+                              claim_list->list_tail,
+                              le);
+}
+
 size_t
 GNUNET_IDENTITY_ATTRIBUTE_list_serialize_get_size (const struct 
GNUNET_IDENTITY_ATTRIBUTE_ClaimList *attrs)
 {
diff --git a/src/identity-provider/jwt.c b/src/identity-provider/jwt.c
index 2f1e3240b..02a920f14 100644
--- a/src/identity-provider/jwt.c
+++ b/src/identity-provider/jwt.c
@@ -39,6 +39,8 @@
 
 #define JWT_TYP_VALUE "jwt"
 
+#define SERVER_ADDRESS "https://localhost";
+
 static char*
 create_jwt_header(void)
 {
@@ -57,22 +59,22 @@ create_jwt_header(void)
 /**
  * Create a JWT from attributes
  *
- * @param sub_key the public of the subject
+ * @param aud_key the public of the subject
  * @param attrs the attribute list
  * @param priv_key the key used to sign the JWT
  * @return a new base64-encoded JWT string.
  */
 char*
-jwt_create_from_list (const struct GNUNET_CRYPTO_EcdsaPublicKey *sub_key,
+jwt_create_from_list (const struct GNUNET_CRYPTO_EcdsaPublicKey *aud_key,
                                                 const struct 
GNUNET_IDENTITY_ATTRIBUTE_ClaimList *attrs,
                                                 const struct 
GNUNET_CRYPTO_EcdsaPrivateKey *priv_key)
 {
   struct GNUNET_IDENTITY_ATTRIBUTE_ClaimListEntry *le;
-  struct GNUNET_CRYPTO_EcdsaPublicKey iss_key;
+  struct GNUNET_CRYPTO_EcdsaPublicKey sub_key;
   struct GNUNET_CRYPTO_EcdsaSignature signature;
   struct GNUNET_CRYPTO_EccSignaturePurpose *purpose;
   char* audience;
-  char* issuer;
+  char* subject;
   char* header;
   char* padding;
   char* body_str;
@@ -84,20 +86,29 @@ jwt_create_from_list (const struct 
GNUNET_CRYPTO_EcdsaPublicKey *sub_key,
   char* attr_val_str;
   json_t* body;
 
-  GNUNET_CRYPTO_ecdsa_key_get_public (priv_key, &iss_key);
+  //exp REQUIRED time expired from config
+  //iat REQUIRED time now
+  //auth_time only if max_age
+  //nonce only if nonce
+  // OPTIONAL acr,amr,azp
+  GNUNET_CRYPTO_ecdsa_key_get_public (priv_key, &sub_key);
   /* TODO maybe we should use a local identity here */
-  issuer = GNUNET_STRINGS_data_to_string_alloc (&iss_key,
+  subject = GNUNET_STRINGS_data_to_string_alloc (&sub_key,
                                                 sizeof (struct 
GNUNET_CRYPTO_EcdsaPublicKey));
-  audience = GNUNET_STRINGS_data_to_string_alloc (sub_key,
+  audience = GNUNET_STRINGS_data_to_string_alloc (aud_key,
                                                   sizeof (struct 
GNUNET_CRYPTO_EcdsaPublicKey));
   header = create_jwt_header ();
   body = json_object ();
   /* TODO who is the issuer? local IdP or subject ? See self-issued tokens? */
+  //iss REQUIRED case sensitive server uri with https
+  //TODO change server address
   json_object_set_new (body,
-                       "iss", json_string (issuer));
+                       "iss", json_string (SERVER_ADDRESS));
+  //sub REQUIRED public key identity, not exceed 255 ASCII  length
   json_object_set_new (body,
-                       "sub", json_string (issuer));
+                       "sub", json_string (subject));
   /* TODO what should be in here exactly? */
+  //aud REQUIRED public key client_id must be there
   json_object_set_new (body,
                        "aud", json_string (audience));
   for (le = attrs->list_head; NULL != le; le = le->next)
@@ -135,7 +146,7 @@ jwt_create_from_list (const struct 
GNUNET_CRYPTO_EcdsaPublicKey *sub_key,
   while (NULL != padding)
     padding = strtok(NULL, "=");
 
-  GNUNET_free (issuer);
+  GNUNET_free (subject);
   GNUNET_free (audience);
 
   /**
diff --git a/src/identity-provider/jwt.h b/src/identity-provider/jwt.h
new file mode 100644
index 000000000..072958973
--- /dev/null
+++ b/src/identity-provider/jwt.h
@@ -0,0 +1,9 @@
+#ifndef JWT_H
+#define JWT_H
+
+char*
+jwt_create_from_list (const struct GNUNET_CRYPTO_EcdsaPublicKey *aud_key,
+                                                const struct 
GNUNET_IDENTITY_ATTRIBUTE_ClaimList *attrs,
+                                                const struct 
GNUNET_CRYPTO_EcdsaPrivateKey *priv_key);
+
+#endif
diff --git a/src/identity-provider/plugin_rest_identity_provider.c 
b/src/identity-provider/plugin_rest_identity_provider.c
index 119476bb9..a0adf1b38 100644
--- a/src/identity-provider/plugin_rest_identity_provider.c
+++ b/src/identity-provider/plugin_rest_identity_provider.c
@@ -39,6 +39,7 @@
 #include "gnunet_signatures.h"
 #include "gnunet_identity_attribute_lib.h"
 #include "gnunet_identity_provider_service.h"
+#include "jwt.h"
 
 /**
  * REST root namespace
@@ -226,7 +227,6 @@ struct OIDC_Variables
 
   char *login_identity;
 
-  json_t *post_object;
 };
 
 /**
@@ -439,8 +439,6 @@ cleanup_handle (struct RequestHandle *handle)
       GNUNET_free(handle->oidc->scope);
     if (NULL != handle->oidc->state)
       GNUNET_free(handle->oidc->state);
-    if (NULL != handle->oidc->post_object)
-      json_decref(handle->oidc->post_object);
     GNUNET_free(handle->oidc);
   }
   if ( NULL != handle->attr_list )
@@ -501,6 +499,7 @@ do_error (void *cls)
     handle->response_code = MHD_HTTP_BAD_REQUEST;
   }
   resp = GNUNET_REST_create_response (json_error);
+  MHD_add_response_header (resp, "Content-Type", "application/json");
   handle->proc (handle->proc_cls, resp, handle->response_code);
   GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed, handle);
   GNUNET_free (json_error);
@@ -1346,37 +1345,40 @@ oidc_ticket_issue_cb (void* cls,
 {
   struct RequestHandle *handle = cls;
   struct MHD_Response *resp;
-  struct GNUNET_HashCode cache_key;
-  char* ticket_str;
-  char* redirect_uri;
-  char* jwt;
+  char *ticket_str;
+  char *redirect_uri;
+  char *code_json_string;
+  char *code_base64_final_string;
   handle->idp_op = NULL;
   resp = GNUNET_REST_create_response ("");
   if (NULL != ticket) {
     ticket_str = GNUNET_STRINGS_data_to_string_alloc (ticket,
                                                       sizeof (struct 
GNUNET_IDENTITY_PROVIDER_Ticket));
 
-
-    //TODO Check if this is right:
-//    GNUNET_CRYPTO_hash (ticket_str, strlen (ticket_str), &cache_key);
-//    jwt = jwt_create_from_list (handle->oidc->client_pkey,
-//                             handle->attr_list,
-//                             handle->priv_key);
-//    //TODO Check success of function
-//    GNUNET_CONTAINER_multihashmap_put (
-//     OIDC_identity_grants, &cache_key, jwt,
-//     GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
-
+//    json_t *object=json_object();
+//    json_object_set_new(object,"ticket",json_string(ticket_str));
+//    if(NULL != handle->oidc->nonce)
+//    {
+//      json_object_set_new(object,"nonce",json_string(handle->oidc->nonce));
+//    }
+    GNUNET_asprintf (&code_json_string, "{\"ticket\":\"%s\"%s%s%s}",
+                    ticket_str,
+                    (NULL != handle->oidc->nonce) ? ", \"nonce\":\"" : "",
+                    (NULL != handle->oidc->nonce) ? handle->oidc->nonce : "",
+                    (NULL != handle->oidc->nonce) ? "\"" : "");
+    
GNUNET_STRINGS_base64_encode(code_json_string,strlen(code_json_string),&code_base64_final_string);
 
     GNUNET_asprintf (&redirect_uri, "%s?%s=%s&state=%s",
                     handle->oidc->redirect_uri,
                     handle->oidc->response_type,
-                    ticket_str, handle->oidc->state);
+                    code_base64_final_string, handle->oidc->state);
     MHD_add_response_header (resp, "Location", redirect_uri);
     handle->proc (handle->proc_cls, resp, MHD_HTTP_FOUND);
     GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed, handle);
     GNUNET_free (redirect_uri);
     GNUNET_free (ticket_str);
+    GNUNET_free (code_json_string);
+    GNUNET_free (code_base64_final_string);
     return;
   }
   handle->emsg = GNUNET_strdup("server_error");
@@ -1578,7 +1580,7 @@ namestore_iteration_callback (
  *
  * @param cls the `struct RequestHandle`
  */
-static void namestore_iteration_finished_GET (void *cls)
+static void namestore_iteration_finished (void *cls)
 {
   struct RequestHandle *handle = cls;
   struct GNUNET_HashCode cache_key;
@@ -1596,7 +1598,7 @@ static void namestore_iteration_finished_GET (void *cls)
     handle->priv_key = *GNUNET_IDENTITY_ego_get_private_key 
(handle->ego_entry->ego);
     handle->namestore_handle_it = GNUNET_NAMESTORE_zone_iteration_start 
(handle->namestore_handle, &handle->priv_key,
                                           &oidc_iteration_error, handle, 
&namestore_iteration_callback, handle,
-                                          &namestore_iteration_finished_GET, 
handle);
+                                          &namestore_iteration_finished, 
handle);
     return;
   }
   if (GNUNET_NO == handle->oidc->is_client_trusted)
@@ -1735,14 +1737,14 @@ static void namestore_iteration_finished_GET (void *cls)
 }
 
 /**
- * Responds to authorization GET request
+ * Responds to authorization GET and url-encoded POST request
  *
  * @param con_handle the connection handle
  * @param url the url
  * @param cls the RequestHandle
  */
 static void
-authorize_GET_cont (struct GNUNET_REST_RequestHandle *con_handle,
+authorize_cont (struct GNUNET_REST_RequestHandle *con_handle,
                 const char* url,
                 void *cls)
 {
@@ -1808,233 +1810,9 @@ authorize_GET_cont (struct GNUNET_REST_RequestHandle 
*con_handle,
   handle->namestore_handle_it = GNUNET_NAMESTORE_zone_iteration_start (
       handle->namestore_handle, &handle->priv_key, &oidc_iteration_error,
       handle, &namestore_iteration_callback, handle,
-      &namestore_iteration_finished_GET, handle);
+      &namestore_iteration_finished, handle);
 }
 
-///**
-// * Iteration over all results finished, build final
-// * response.
-// *
-// * @param cls the `struct RequestHandle`
-// */
-//static void namestore_iteration_finished_POST (void *cls)
-//{
-//  struct RequestHandle *handle = cls;
-//  json_t *cache_object;
-//  char *expected_redirect_uri;
-//  char *expected_scope;
-//  char delimiter[]=" ";
-//  int number_of_ignored_parameter, iterator;
-//
-//
-//  handle->ego_entry = handle->ego_entry->next;
-//
-//  if(NULL != handle->ego_entry){
-//    handle->priv_key = *GNUNET_IDENTITY_ego_get_private_key 
(handle->ego_entry->ego);
-//    handle->namestore_handle_it = GNUNET_NAMESTORE_zone_iteration_start 
(handle->namestore_handle, &handle->priv_key,
-//                                        &oidc_iteration_error, handle, 
&namestore_iteration_callback, handle,
-//                                        &namestore_iteration_finished_POST, 
handle);
-//    return;
-//  }
-//  if (GNUNET_YES != handle->oidc->is_client_trusted)
-//  {
-//    handle->emsg = GNUNET_strdup("unauthorized_client");
-//    handle->edesc = GNUNET_strdup("The client is not authorized to request 
an "
-//                               "authorization code using this method.");
-//    GNUNET_SCHEDULER_add_now (&do_error, handle);
-//    return;
-//  }
-//
-//  // REQUIRED value: redirect_uri
-//  cache_object = json_object_get (handle->oidc->post_object, 
OIDC_REDIRECT_URI_KEY);
-//  if ( NULL == cache_object || !json_is_string(cache_object) )
-//  {
-//    handle->emsg=GNUNET_strdup("invalid_request");
-//    handle->edesc=GNUNET_strdup("missing parameter redirect_uri");
-//    GNUNET_SCHEDULER_add_now (&do_error, handle);
-//    return;
-//  }
-//  handle->oidc->redirect_uri = json_string_value (cache_object);
-//
-//  GNUNET_asprintf (&expected_redirect_uri, "https://%s.zkey";, 
handle->oidc->client_id);
-//  // verify the redirect uri matches https://<client_id>.zkey[/xyz]
-//  if( 0 != strncmp( expected_redirect_uri, handle->oidc->redirect_uri, 
strlen(expected_redirect_uri)) )
-//  {
-//    handle->emsg=GNUNET_strdup("invalid_request");
-//    handle->edesc=GNUNET_strdup("Invalid redirect_uri");
-//    GNUNET_SCHEDULER_add_now (&do_error, handle);
-//    GNUNET_free(expected_redirect_uri);
-//    return;
-//  }
-//  handle->oidc->redirect_uri = GNUNET_strdup(handle->oidc->redirect_uri);
-//  GNUNET_free(expected_redirect_uri);
-//
-//  // REQUIRED value: response_type
-//  cache_object = json_object_get (handle->oidc->post_object, 
OIDC_RESPONSE_TYPE_KEY);
-//  if ( NULL == cache_object || !json_is_string(cache_object) )
-//  {
-//    handle->emsg=GNUNET_strdup("invalid_request");
-//    handle->edesc=GNUNET_strdup("missing parameter response_type");
-//    GNUNET_SCHEDULER_add_now (&do_redirect_error, handle);
-//    return;
-//  }
-//  handle->oidc->response_type = json_string_value (cache_object);
-//  handle->oidc->response_type = GNUNET_strdup (handle->oidc->response_type);
-//
-//  // REQUIRED value: scope
-//  cache_object = json_object_get (handle->oidc->post_object, OIDC_SCOPE_KEY);
-//  if ( NULL == cache_object || !json_is_string(cache_object) )
-//  {
-//    handle->emsg=GNUNET_strdup("invalid_request");
-//    handle->edesc=GNUNET_strdup("missing parameter scope");
-//    GNUNET_SCHEDULER_add_now (&do_redirect_error, handle);
-//    return;
-//  }
-//  handle->oidc->scope = json_string_value (cache_object);
-//  handle->oidc->scope = GNUNET_strdup(handle->oidc->scope);
-//
-//  //OPTIONAL value: nonce
-//  cache_object = json_object_get (handle->oidc->post_object, OIDC_NONCE_KEY);
-//  if ( NULL != cache_object && json_is_string(cache_object) )
-//  {
-//    handle->oidc->nonce = json_string_value (cache_object);
-//    //TODO: what do we do with the nonce?
-//    handle->oidc->nonce = GNUNET_strdup (handle->oidc->nonce);
-//  }
-//
-//  //TODO check other values and use them accordingly
-//  number_of_ignored_parameter = sizeof(OIDC_ignored_parameter_array) / 
sizeof(char *);
-//  for( iterator = 0; iterator < number_of_ignored_parameter; iterator++ )
-//  {
-//    cache_object = json_object_get (handle->oidc->post_object, 
OIDC_ignored_parameter_array[iterator]);
-//    if( NULL != cache_object && json_is_string(cache_object) )
-//    {
-//      handle->emsg=GNUNET_strdup("access_denied");
-//      GNUNET_asprintf (&handle->edesc, "Server will not handle parameter: 
%s",
-//                    OIDC_ignored_parameter_array[iterator]);
-//      GNUNET_SCHEDULER_add_now (&do_redirect_error, handle);
-//      return;
-//    }
-//  }
-//
-//  // Checks if response_type is 'code'
-//  if( 0 != strcmp( handle->oidc->response_type, 
OIDC_EXPECTED_AUTHORIZATION_RESPONSE_TYPE ) )
-//  {
-//    handle->emsg=GNUNET_strdup("unsupported_response_type");
-//    handle->edesc=GNUNET_strdup("The authorization server does not support "
-//                             "obtaining this authorization code.");
-//    GNUNET_SCHEDULER_add_now (&do_redirect_error, handle);
-//    return;
-//  }
-//
-//  // Checks if scope contains 'openid'
-//  expected_scope = GNUNET_strdup(handle->oidc->scope);
-//  expected_scope = strtok (expected_scope, delimiter);
-//  while (NULL != expected_scope)
-//  {
-//    if ( 0 == strcmp (OIDC_EXPECTED_AUTHORIZATION_SCOPE, expected_scope) )
-//    {
-//      break;
-//    }
-//    expected_scope = strtok (NULL, delimiter);
-//  }
-//  if (NULL == expected_scope)
-//  {
-//    handle->emsg = GNUNET_strdup("invalid_scope");
-//    handle->edesc=GNUNET_strdup("The requested scope is invalid, unknown, or 
"
-//                             "malformed.");
-//    GNUNET_SCHEDULER_add_now (&do_redirect_error, handle);
-//    return;
-//  }
-//
-//  GNUNET_free(expected_scope);
-//
-//  if( NULL != handle->oidc->login_identity )
-//  {
-//    GNUNET_SCHEDULER_add_now(&login_check,handle);
-//    return;
-//  }
-//
-//  GNUNET_SCHEDULER_add_now(&login_redirection,handle);
-//}
-//
-//
-///**
-// * Responds to authorization POST request
-// *
-// * @param con_handle the connection handle
-// * @param url the url
-// * @param cls the RequestHandle
-// */
-//static void
-//authorize_POST_cont (struct GNUNET_REST_RequestHandle *con_handle,
-//                const char* url,
-//                void *cls)
-//{
-//  struct RequestHandle *handle = cls;
-//  json_t *cache_object;
-//  json_error_t error;
-//  handle->oidc->post_object = json_loads (handle->rest_handle->data, 0, 
&error);
-//
-//  //gets identity of login try with cookie
-//  cookie_identity_interpretation(handle);
-//
-//  //RECOMMENDED value: state - REQUIRED for answers
-//  cache_object = json_object_get (handle->oidc->post_object, OIDC_STATE_KEY);
-//  if ( NULL != cache_object && json_is_string(cache_object) )
-//  {
-//    handle->oidc->state = json_string_value (cache_object);
-//    handle->oidc->state = GNUNET_strdup(handle->oidc->state);
-//  }
-//
-//  // REQUIRED value: client_id
-//  cache_object = json_object_get (handle->oidc->post_object,
-//                               OIDC_CLIENT_ID_KEY);
-//  if ( NULL == cache_object || !json_is_string(cache_object) )
-//  {
-//    handle->emsg = GNUNET_strdup("invalid_request");
-//    handle->edesc = GNUNET_strdup("missing parameter client_id");
-//    handle->response_code = MHD_HTTP_INTERNAL_SERVER_ERROR;
-//    GNUNET_SCHEDULER_add_now (&do_error, handle);
-//    return;
-//  }
-//  handle->oidc->client_id = json_string_value (cache_object);
-//  handle->oidc->client_id = GNUNET_strdup(handle->oidc->client_id);
-//
-//  if ( GNUNET_OK
-//      != GNUNET_CRYPTO_ecdsa_public_key_from_string (
-//       handle->oidc->client_id, strlen (handle->oidc->client_id),
-//       &handle->oidc->client_pkey) )
-//  {
-//    handle->emsg = GNUNET_strdup("unauthorized_client");
-//    handle->edesc = GNUNET_strdup("The client is not authorized to request 
an "
-//                               "authorization code using this method.");
-//    handle->response_code = MHD_HTTP_INTERNAL_SERVER_ERROR;
-//    GNUNET_SCHEDULER_add_now (&do_error, handle);
-//    return;
-//  }
-//
-//  if ( NULL == handle->ego_head )
-//  {
-//    //TODO throw error or ignore if egos are missing?
-//    handle->emsg = GNUNET_strdup("server_error");
-//    handle->edesc = GNUNET_strdup ("Egos are missing");
-//    handle->response_code = MHD_HTTP_INTERNAL_SERVER_ERROR;
-//    GNUNET_SCHEDULER_add_now (&do_error, handle);
-//    return;
-//  }
-//
-//  handle->ego_entry = handle->ego_head;
-//  handle->priv_key = *GNUNET_IDENTITY_ego_get_private_key 
(handle->ego_head->ego);
-//  handle->oidc->is_client_trusted = GNUNET_NO;
-//
-//  // Checks if client_id is valid:
-//  handle->namestore_handle_it = GNUNET_NAMESTORE_zone_iteration_start (
-//      handle->namestore_handle, &handle->priv_key, &oidc_iteration_error,
-//      handle, &namestore_iteration_callback, handle,
-//      &namestore_iteration_finished_POST, handle);
-//}
-
 /**
  * Combines an identity with a login time and responds OK to login request
  *
@@ -2097,6 +1875,7 @@ token_cont(struct GNUNET_REST_RequestHandle *con_handle,
   //TODO static strings
   //TODO Unauthorized with Header Field
   //TODO Do not allow multiple equal parameter names
+  //TODO free
 
   struct RequestHandle *handle = cls;
   struct GNUNET_HashCode cache_key;
@@ -2107,9 +1886,11 @@ token_cont(struct GNUNET_REST_RequestHandle *con_handle,
   char *user_psw = NULL, *client_id, *psw;
   char *expected_psw;
   int client_exists = GNUNET_NO;
+  struct MHD_Response *resp;
 
   //Check Authorization Header
-  GNUNET_CRYPTO_hash (OIDC_AUTHORIZATION_HEADER_KEY, strlen 
(OIDC_AUTHORIZATION_HEADER_KEY),
+  GNUNET_CRYPTO_hash (OIDC_AUTHORIZATION_HEADER_KEY,
+                     strlen (OIDC_AUTHORIZATION_HEADER_KEY),
                      &cache_key);
   if ( GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains 
(handle->rest_handle->header_param_map,
                                                             &cache_key) )
@@ -2229,7 +2010,6 @@ token_cont(struct GNUNET_REST_RequestHandle *con_handle,
   redirect_uri = GNUNET_CONTAINER_multihashmap_get (
       handle->rest_handle->url_param_map, &cache_key);
 
-
   //check client_id
   for (handle->ego_entry = handle->ego_head; NULL != handle->ego_entry->next; )
   {
@@ -2248,8 +2028,6 @@ token_cont(struct GNUNET_REST_RequestHandle *con_handle,
     return;
   }
 
-
-
   //Check parameter grant_type == "authorization_code"
   if (0 != strcmp("authorization_code", grant_type))
   {
@@ -2259,12 +2037,6 @@ token_cont(struct GNUNET_REST_RequestHandle *con_handle,
     return;
   }
 
-
-
-  //TODO consume code
-
-
-
   // check redirect_uri
   GNUNET_asprintf (&expected_redirect_uri, "https://%s.zkey";, client_id);
   // verify the redirect uri matches https://<client_id>.zkey[/xyz]
@@ -2278,10 +2050,163 @@ token_cont(struct GNUNET_REST_RequestHandle 
*con_handle,
   }
   GNUNET_free(expected_redirect_uri);
 
-  //return something
+  char* output;
+  GNUNET_STRINGS_base64_decode(code,strlen(code),&output);
+
+  json_t *root;
+  json_error_t error;
+  json_t *ticket_string;
+  json_t *nonce;
+  root = json_loads (output, 0, &error);
+  ticket_string = json_object_get (root, "ticket");
+  nonce = json_object_get (root, "nonce");
+
+
+  struct GNUNET_IDENTITY_PROVIDER_Ticket *ticket = GNUNET_new(struct 
GNUNET_IDENTITY_PROVIDER_Ticket);
+  if(ticket_string == NULL && !json_is_string(ticket_string))
+  {
+    handle->emsg = GNUNET_strdup("invalid_request");
+    handle->edesc = GNUNET_strdup("invalid code.");
+    GNUNET_SCHEDULER_add_now (&do_error, handle);
+    return;
+  }
+  if ( GNUNET_OK
+      != GNUNET_STRINGS_string_to_data (json_string_value(ticket_string),
+                                       strlen 
(json_string_value(ticket_string)),
+                                       ticket,
+                                       sizeof(struct 
GNUNET_IDENTITY_PROVIDER_Ticket)))
+  {
+    handle->emsg = GNUNET_strdup("invalid_request");
+    handle->edesc = GNUNET_strdup("invalid code..");
+    GNUNET_SCHEDULER_add_now (&do_error, handle);
+    return;
+  }
+  //TODO lookup if audience is the current client
+  //TODO change
+  struct GNUNET_CRYPTO_EcdsaPublicKey pub_key;
+  GNUNET_IDENTITY_ego_get_public_key(handle->ego_entry->ego,&pub_key);
+  if (0 != memcmp(&pub_key,&ticket->audience,sizeof(struct 
GNUNET_CRYPTO_EcdsaPublicKey)))
+  {
+    handle->emsg = GNUNET_strdup("invalid_request");
+    handle->edesc = GNUNET_strdup("invalid code...");
+    GNUNET_SCHEDULER_add_now (&do_error, handle);
+    return;
+  }
+
+  //create jwt
+  unsigned long long int expiration_time;
+  if ( GNUNET_OK
+      != GNUNET_CONFIGURATION_get_value_number(cfg, "identity-rest-plugin",
+                                               "expiration_time", 
&expiration_time) )
+  {
+    handle->emsg = GNUNET_strdup("server_error");
+    handle->edesc = GNUNET_strdup ("gnunet configuration failed");
+    handle->response_code = MHD_HTTP_INTERNAL_SERVER_ERROR;
+    GNUNET_SCHEDULER_add_now (&do_error, handle);
+    return;
+  }
+
+  struct GNUNET_IDENTITY_ATTRIBUTE_ClaimList *cl = GNUNET_new (struct 
GNUNET_IDENTITY_ATTRIBUTE_ClaimList);
+  //aud REQUIRED public key client_id must be there
+  GNUNET_IDENTITY_ATTRIBUTE_list_add(cl,
+                                    "aud",
+                                    GNUNET_IDENTITY_ATTRIBUTE_TYPE_STRING,
+                                    client_id,
+                                    strlen(client_id));
+  //exp REQUIRED time expired from config
+  //TODO time as seconds
+  struct GNUNET_TIME_Absolute exp_time = GNUNET_TIME_relative_to_absolute (
+      GNUNET_TIME_relative_multiply (GNUNET_TIME_relative_get_second_ (),
+                                    expiration_time));
+  const char* exp_time_string = 
GNUNET_STRINGS_absolute_time_to_string(exp_time);
+  GNUNET_IDENTITY_ATTRIBUTE_list_add (cl,
+                                     "exp",
+                                     GNUNET_IDENTITY_ATTRIBUTE_TYPE_STRING,
+                                     exp_time_string,
+                                     strlen(exp_time_string));
+  //iat REQUIRED time now
+  //TODO time as seconds
+  struct GNUNET_TIME_Absolute time_now = GNUNET_TIME_absolute_get();
+  const char* time_now_string = 
GNUNET_STRINGS_absolute_time_to_string(time_now);
+  GNUNET_IDENTITY_ATTRIBUTE_list_add (cl,
+                                     "iat",
+                                     GNUNET_IDENTITY_ATTRIBUTE_TYPE_STRING,
+                                     time_now_string,
+                                     strlen(time_now_string));
+  //nonce only if nonce
+  if ( NULL != nonce && json_is_string(nonce) )
+  {
+    GNUNET_IDENTITY_ATTRIBUTE_list_add (cl,
+                                       "nonce",
+                                       GNUNET_IDENTITY_ATTRIBUTE_TYPE_STRING,
+                                       json_string_value(nonce),
+                                       strlen(json_string_value(nonce)));
+  }
+
+  //TODO auth_time only if max_age
+  //TODO OPTIONAL acr,amr,azp
+
+  //TODO lookup client for client == audience of ticket
+  struct EgoEntry *ego_entry;
+  for (ego_entry = handle->ego_head; NULL != ego_entry; ego_entry = 
ego_entry->next)
+  {
+    GNUNET_IDENTITY_ego_get_public_key (ego_entry->ego, &pub_key);
+    if (0 == memcmp (&pub_key, &ticket->audience, sizeof(struct 
GNUNET_CRYPTO_EcdsaPublicKey)))
+    {
+      break;
+    }
+  }
+  if ( NULL == ego_entry )
+  {
+    handle->emsg = GNUNET_strdup("invalid_request");
+    handle->edesc = GNUNET_strdup("invalid code....");
+    GNUNET_SCHEDULER_add_now (&do_error, handle);
+    return;
+  }
+  char *id_token = jwt_create_from_list(&ticket->audience,
+                                        cl,
+                                        
GNUNET_IDENTITY_ego_get_private_key(ego_entry->ego));
+
+  // random access_token
+  char* access_token_number;
+  char* access_token;
+  uint64_t random_number;
+  random_number = GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_NONCE, 
UINT64_MAX);
+  GNUNET_asprintf(&access_token_number, "%" PRIu64, random_number);
+  
GNUNET_STRINGS_base64_encode(access_token_number,strlen(access_token_number),&access_token);
+
+
+  char *json_error;
+  //TODO optional refresh_token and scope
+  GNUNET_asprintf (&json_error,
+                  "{ \"access_token\" : \"%s\", "
+                  "\"token_type\" : \"Bearer\", "
+                  "\"expires_in\" : %d, "
+                  "\"id_token\" : \"%s\"}",
+                  access_token,
+                  expiration_time,
+                  id_token);
+
+  resp = GNUNET_REST_create_response (json_error);
+
+  MHD_add_response_header (resp, "Cache-Control", "no-store");
+  MHD_add_response_header (resp, "Pragma", "no-cache");
+  MHD_add_response_header (resp, "Content-Type", "application/json");
+  handle->proc (handle->proc_cls, resp, MHD_HTTP_OK);
+  GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed, handle);
 
+  //necessary? should be
+//  handle->idp_op = 
GNUNET_IDENTITY_PROVIDER_ticket_consume(handle->idp,GNUNET_IDENTITY_ego_get_private_key(handle->ego_entry->ego),ticket,consume_cont,
 handle);
+  GNUNET_IDENTITY_ATTRIBUTE_list_destroy(cl);
+  //TODO write method
+  handle->idp_op = 
GNUNET_IDENTITY_PROVIDER_ticket_consume(handle->idp,GNUNET_IDENTITY_ego_get_private_key(ego_entry->ego),ticket,consume_cont,handle);
+  GNUNET_free(access_token_number);
+  GNUNET_free(credentials);
+  GNUNET_free(access_token);
   GNUNET_free(user_psw);
-  json_decref(handle->oidc->post_object);
+  GNUNET_free(code);
+  GNUNET_free(id_token);
+  json_decref(root);
 }
 
 /**
@@ -2297,8 +2222,8 @@ init_cont (struct RequestHandle *handle)
     {MHD_HTTP_METHOD_GET, GNUNET_REST_API_NS_IDENTITY_ATTRIBUTES, 
&list_attribute_cont},
     {MHD_HTTP_METHOD_POST, GNUNET_REST_API_NS_IDENTITY_ATTRIBUTES, 
&add_attribute_cont},
     {MHD_HTTP_METHOD_GET, GNUNET_REST_API_NS_IDENTITY_TICKETS, 
&list_tickets_cont},
-    {MHD_HTTP_METHOD_GET, GNUNET_REST_API_NS_AUTHORIZE, &authorize_GET_cont},
-    {MHD_HTTP_METHOD_POST, GNUNET_REST_API_NS_AUTHORIZE, &authorize_GET_cont},
+    {MHD_HTTP_METHOD_GET, GNUNET_REST_API_NS_AUTHORIZE, &authorize_cont},
+    {MHD_HTTP_METHOD_POST, GNUNET_REST_API_NS_AUTHORIZE, &authorize_cont}, 
//url-encoded
     {MHD_HTTP_METHOD_POST, GNUNET_REST_API_NS_LOGIN, &login_cont},
     {MHD_HTTP_METHOD_POST, GNUNET_REST_API_NS_TOKEN, &token_cont},
     {MHD_HTTP_METHOD_POST, GNUNET_REST_API_NS_IDENTITY_REVOKE, 
&revoke_ticket_cont},
diff --git a/src/identity-provider/test_idp.conf 
b/src/identity-provider/test_idp.conf
index b4bb448df..b11b43ae2 100644
--- a/src/identity-provider/test_idp.conf
+++ b/src/identity-provider/test_idp.conf
@@ -28,5 +28,6 @@ ZONE_PUBLISH_TIME_WINDOW = 1 h
 DNS_ROOT=PD67SGHF3E0447TU9HADIVU9OM7V4QHTOG0EBU69TFRI2LG63DR0
 
 [identity-rest-plugin]
-address = http://localhost:8000/#/identities
-psw = mysupersecretpassword
\ No newline at end of file
+address = http://localhost:8000/#/login
+psw = mysupersecretpassword
+expiration_time = 3600
\ No newline at end of file
diff --git a/src/include/gnunet_identity_attribute_lib.h 
b/src/include/gnunet_identity_attribute_lib.h
index 316b0bf95..8879ba925 100644
--- a/src/include/gnunet_identity_attribute_lib.h
+++ b/src/include/gnunet_identity_attribute_lib.h
@@ -148,6 +148,12 @@ GNUNET_IDENTITY_ATTRIBUTE_list_serialize_get_size (const 
struct GNUNET_IDENTITY_
 void
 GNUNET_IDENTITY_ATTRIBUTE_list_destroy (struct 
GNUNET_IDENTITY_ATTRIBUTE_ClaimList *attrs);
 
+void
+GNUNET_IDENTITY_ATTRIBUTE_list_add (struct GNUNET_IDENTITY_ATTRIBUTE_ClaimList 
*attrs,
+                                   const char* attr_name,
+                                   uint32_t type,
+                                   const void* data,
+                                   size_t data_size);
 
 /**
  * Serialize an attribute list

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