core: Set notation flags for verify.

* src/gpgme.h.in (GPGME_STATUS_NOTATION_FLAGS): New.
* src/status-table.c (status_table): Add new status.
* src/verify.c (parse_notation): Handle flags.  Also fix NOTATION_DATA
in case gpg would not percent-escape spaces.
(_gpgme_verify_status_handler): Handle flags.
* tests/run-verify.c (print_result): Print notaion data.
--

Note that this does only work with the soon to be released GnuPG
2.1.13.

NEWS

@@ -3,6 +3,8 @@ Noteworthy changes in version 1.7.0 (unreleased) [C25/A14/R_]
 
  * New function to format a GnuPG style public key algorithm string.
 
+ * Notation flags are now correctly set on verify.
+
  * Interface changes relative to the 1.6.0 release:
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  gpgme_pubkey_algo_string       NEW.
@@ -15,6 +17,7 @@ Noteworthy changes in version 1.7.0 (unreleased) [C25/A14/R_]
  GPGME_STATUS_TOFU_USER         NEW.
  GPGME_STATUS_TOFU_STATS        NEW.
  GPGME_STATUS_TOFU_STATS_LONG   NEW.
+ GPGME_STATUS_NOTATION_FLAGS    NEW.
 
 
 Noteworthy changes in version 1.6.0 (2015-08-26) [C25/A14/R0]

src/gpgme.h.in

@@ -549,7 +549,8 @@ typedef enum
     GPGME_STATUS_KEY_CONSIDERED = 94,
     GPGME_STATUS_TOFU_USER = 95,
     GPGME_STATUS_TOFU_STATS = 96,
-    GPGME_STATUS_TOFU_STATS_LONG = 97
+    GPGME_STATUS_TOFU_STATS_LONG = 97,
+    GPGME_STATUS_NOTATION_FLAGS = 98
   }
 gpgme_status_code_t;
 

src/status-table.c

@@ -102,6 +102,7 @@ static struct status_table_s status_table[] =
   { "NO_SGNR", GPGME_STATUS_NO_SGNR },
   { "NODATA", GPGME_STATUS_NODATA },
   { "NOTATION_DATA", GPGME_STATUS_NOTATION_DATA },
+  { "NOTATION_FLAGS", GPGME_STATUS_NOTATION_FLAGS },
   { "NOTATION_NAME", GPGME_STATUS_NOTATION_NAME },
   { "PINENTRY_LAUNCHED", GPGME_STATUS_PINENTRY_LAUNCHED},
   { "PKA_TRUST_BAD", GPGME_STATUS_PKA_TRUST_BAD },

src/verify.c

@@ -504,13 +504,14 @@ parse_notation (gpgme_signature_t sig, gpgme_status_code_t code, char *args)
   gpgme_error_t err;
   gpgme_sig_notation_t *lastp = &sig->notations;
   gpgme_sig_notation_t notation = sig->notations;
-  char *end = strchr (args, ' ');
-
-  if (end)
-    *end = '\0';
+  char *p;
 
   if (code == GPGME_STATUS_NOTATION_NAME || code == GPGME_STATUS_POLICY_URL)
     {
+      p = strchr (args, ' ');
+      if (p)
+        *p = '\0';
+
       /* FIXME: We could keep a pointer to the last notation in the list.  */
       while (notation && notation->value)
 	{
@@ -538,9 +539,8 @@ parse_notation (gpgme_signature_t sig, gpgme_status_code_t code, char *args)
 
 	  notation->name_len = strlen (notation->name);
 
-	  /* FIXME: For now we fake the human-readable flag.  The
-	     critical flag can not be reported as it is not
-	     provided.  */
+	  /* Set default flags for use with older gpg versions which
+           * do not emit a NOTATIONS_FLAG line.  */
 	  notation->flags = GPGME_SIG_NOTATION_HUMAN_READABLE;
 	  notation->human_readable = 1;
 	}
@@ -559,6 +559,37 @@ parse_notation (gpgme_signature_t sig, gpgme_status_code_t code, char *args)
 	}
       *lastp = notation;
     }
+  else if (code == GPGME_STATUS_NOTATION_FLAGS)
+    {
+      char *field[2];
+
+      while (notation && notation->next)
+	{
+	  lastp = &notation->next;
+	  notation = notation->next;
+	}
+
+      if (!notation || !notation->name)
+        { /* There are notation flags without a previous notation name.
+           * The crypto backend misbehaves.  */
+          return trace_gpg_error (GPG_ERR_INV_ENGINE);
+        }
+      if (_gpgme_split_fields (args, field, DIM (field)) < 2)
+        { /* Required args missing.  */
+          return trace_gpg_error (GPG_ERR_INV_ENGINE);
+        }
+      notation->flags = 0;
+      if (atoi (field[0]))
+        {
+          notation->flags |= GPGME_SIG_NOTATION_CRITICAL;
+          notation->critical = 1;
+        }
+      if (atoi (field[1]))
+        {
+          notation->flags |= GPGME_SIG_NOTATION_HUMAN_READABLE;
+          notation->human_readable = 1;
+        }
+    }
   else if (code == GPGME_STATUS_NOTATION_DATA)
     {
       int len = strlen (args) + 1;
@@ -918,6 +949,7 @@ _gpgme_verify_status_handler (void *priv, gpgme_status_code_t code, char *args)
       break;
 
     case GPGME_STATUS_NOTATION_NAME:
+    case GPGME_STATUS_NOTATION_FLAGS:
     case GPGME_STATUS_NOTATION_DATA:
     case GPGME_STATUS_POLICY_URL:
       opd->only_newsig_seen = 0;

tests/run-verify.c

@@ -110,6 +110,7 @@ static void
 print_result (gpgme_verify_result_t result)
 {
   gpgme_signature_t sig;
+  gpgme_sig_notation_t nt;
   gpgme_tofu_info_t ti;
   int count = 0;
 
@@ -138,8 +139,20 @@ print_result (gpgme_verify_result_t result)
               sig->wrong_key_usage? " wrong-key-usage":"",
               sig->chain_model? " chain-model":""
               );
-      printf ("  notations .: %s\n",
-              sig->notations? "yes":"no");
+      for (nt = sig->notations; nt; nt = nt->next)
+        {
+          printf ("  notation ..: '%s'\n", nt->name);
+          if (strlen (nt->name) != nt->name_len)
+            printf ("    warning : name larger (%d)\n", nt->name_len);
+          printf ("    flags ...:%s%s (0x%02x)\n",
+                  nt->critical? " critical":"",
+                  nt->human_readable? " human":"",
+                  nt->flags);
+          if (nt->value)
+            printf ("    value ...: '%s'\n", nt->value);
+          if ((nt->value?strlen (nt->value):0) != nt->value_len)
+            printf ("    warning : value larger (%d)\n", nt->value_len);
+        }
       for (ti = sig->tofu; ti; ti = ti->next)
         {
           printf ("  tofu addr .: %s\n", ti->address);