[gnunet] 19/70: -did expiration time fix

[gnunet]

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

commit 5a272fc9281e612b4f6d7b75b62e4672dc17866d
Author: Tristan Schwieren <tristan.schwieren@tum.de>
AuthorDate: Mon Dec 20 13:24:54 2021 +0100

    -did expiration time fix
---
 src/did/gnunet-did.c | 84 +++++++++++++++++++++++++++++++++++-----------------
 1 file changed, 57 insertions(+), 27 deletions(-)

diff --git a/src/did/gnunet-did.c b/src/did/gnunet-did.c
index 2efc116cd..aa1a9188f 100644
--- a/src/did/gnunet-did.c
+++ b/src/did/gnunet-did.c
@@ -1,6 +1,6 @@
 /*
    This file is part of GNUnet.
-   Copyright (C) 2012-2015 GNUnet e.V.
+   Copyright (C) 2012-2021 GNUnet e.V.
 
    GNUnet is free software: you can redistribute it and/or modify it
    under the terms of the GNU Affero General Public License as published
@@ -17,6 +17,14 @@
 
      SPDX-License-Identifier: AGPL3.0-or-later
  */
+
+// TODO: Public Key in DID Docuement
+// TODO: Correct Key type
+// TODO: valid time when setting DID Docuement - replace - create
+// TODO: uncrustify
+// TODO: Unit Tests
+
+
 /**
  * @author Tristan Schwieren
  * @file src/did/gnunet-did.c
@@ -80,17 +88,21 @@ static char *attr_ego;
  */
 static char *attr_name;
 
+/**
+ * Attribute expire
+ */
+static char *attr_expire;
+
 static struct GNUNET_GNS_Handle * gns_handle;
 static struct GNUNET_NAMESTORE_Handle * namestore_handle;
 static struct GNUNET_IDENTITY_Handle * identity_handle;
 const static struct GNUNET_CONFIGURATION_Handle * my_cfg;
 
 // TODO
-// static void replace_did_document(); - use remove_did_document and 
add_did_document
 // eddsa only
-// Set the duration for the didd record 
 // safe delete the didd record - look for other with same sub
 // Add a data DID Document type
+// Set Record flag when storing did
 
 /**
  * @brief Disconnect and shutdown
@@ -191,8 +203,6 @@ print_did_document(
        uint32_t rd_count,
        const struct GNUNET_GNSRECORD_Data *rd)
 {
-       printf("Going to print did\n");
-       // TODO: Remove "store.sock" at the end of print
        if (rd_count != 1)
        {
                printf("An ego should only have one DID Document");
@@ -226,7 +236,6 @@ resolve_did_document()
        get_pkey_from_attr_did(&pkey);
 
        // TODO: Check the type of returned records
-       printf("Start GNS lockup\n");
        GNUNET_GNS_lookup(gns_handle, "didd", &pkey, GNUNET_DNSPARSER_TYPE_TXT, 
GNUNET_GNS_LO_DEFAULT, &print_did_document, NULL);
 }
 
@@ -427,22 +436,34 @@ create_did_store_cb(void *cls, int32_t success, const 
char *emsg){
 static void
 create_did_store(char * didd_str, struct GNUNET_IDENTITY_Ego * ego)
 {
-       const struct GNUNET_IDENTITY_PrivateKey * skey = 
GNUNET_IDENTITY_ego_get_private_key(ego);
-  const struct GNUNET_GNSRECORD_Data record_data = {
-    (void *) didd_str,
-    (uint64_t) 86400000000, // =1d TODO: Set to user preference
-    strlen(didd_str), 
-    GNUNET_GNSRECORD_typename_to_number("TXT"),
-    0
-  };
-
-  GNUNET_NAMESTORE_records_store( namestore_handle,
-                                  skey,
-                                  "didd",
-                                  1,
-                                  &record_data,
-                                  &create_did_store_cb,
-                                  NULL);
+
+       struct GNUNET_TIME_Relative expire_time;
+  struct GNUNET_GNSRECORD_Data record_data;
+       const struct GNUNET_IDENTITY_PrivateKey * skey;
+
+       if(GNUNET_STRINGS_fancy_time_to_relative(attr_expire, &expire_time) != 
GNUNET_OK)
+       {
+               record_data.data = (void *) didd_str;
+               record_data.expiration_time = expire_time.rel_value_us;
+               record_data.data_size = strlen(didd_str);
+               record_data.record_type = 
GNUNET_GNSRECORD_typename_to_number("TXT"),
+               record_data.flags = GNUNET_GNSRECORD_RF_RELATIVE_EXPIRATION;
+
+               skey = GNUNET_IDENTITY_ego_get_private_key(ego);
+
+       GNUNET_NAMESTORE_records_store( namestore_handle,
+                                       skey,
+                                       "didd",
+                                       1,
+                                       &record_data,
+                                       &create_did_store_cb,
+                                       NULL);
+       } else {
+               printf("Failed to read given expiration time\n");
+       GNUNET_SCHEDULER_add_now(&cleanup, NULL);
+       ret = 1;
+       return;
+       }
 }
 
 /**
@@ -527,23 +548,27 @@ create_did_document_ego_create_cb(void *cls,
                                   NULL);
 }
 
+/**
+ * @brief Create a did document
+ * 
+ */
 static void 
 create_did_document()
 {
-  if(attr_name != NULL){
+       if(attr_name != NULL || attr_expire != NULL){
                GNUNET_IDENTITY_create(identity_handle,
                                                                                
                         attr_name,
                                                                                
                         NULL,
                                                                                
                         GNUNET_IDENTITY_TYPE_EDDSA,
                                                                                
                         &create_did_document_ego_create_cb,
                                                                                
                         (void *) attr_name);
-       } else if (attr_ego != NULL) {
+       } else if (attr_ego != NULL || attr_expire != NULL) {
                GNUNET_IDENTITY_ego_lookup(my_cfg,
                                           attr_ego,
                                           &create_did_ego_lockup_cb,
                                           NULL);
   } else {
-    printf("Set the NAME or the EGO argument to create a new 
DID(-Document)\n");
+    printf("Set the NAME or the EGO and the Expiration-time argument to create 
a new DID(-Document)\n");
     GNUNET_SCHEDULER_add_now(&cleanup, NULL);
     ret = 1;
     return;
@@ -584,11 +609,11 @@ replace_did_document_remove_cb(void * cls)
 static void 
 replace_did_document()
 {
-       if (attr_didd != NULL)
+       if (attr_didd != NULL || attr_expire != NULL)
        {
                remove_did_document(&replace_did_document_remove_cb, NULL);
        } else {
-               printf("Set the DID Document argument to repalce the DID 
Document\n");
+               printf("Set the DID Document and expiration time argument to 
repalce the DID Document\n");
        GNUNET_SCHEDULER_add_now(&cleanup, NULL);
        ret = 1;
        return;
@@ -688,6 +713,11 @@ main (int argc, char *const argv[])
                                             "NAME",
                                             gettext_noop ("The name of the 
created EGO"),
                                             &attr_name),
+               GNUNET_GETOPT_option_string ('t',
+                                            "expiration-time",
+                                            "TIME",
+                                            gettext_noop ("The time until the 
DID Document is going to expire (e.g. 5d)"),
+                                            &attr_expire),
                GNUNET_GETOPT_OPTION_END
        };
 

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