auction: add pricemap validation

diff --git a/src/auction/gnunet-auction-create.c b/src/auction/gnunet-auction-create.c
index c21e93f2600e540757a9754db6f51464718e4b5f..dc43f635ee45a7613812a29eb2e70a4e32f2f721 100644 (file)
--- a/src/auction/gnunet-auction-create.c
+++ b/src/auction/gnunet-auction-create.c
@@ -24,6 +24,9 @@
  * @author Markus Teich
  */
 #include "platform.h"
+
+#include <float.h>
+
 #include "gnunet_util_lib.h"
 #include "gnunet_json_lib.h"
 /* #include "gnunet_auction_service.h" */
@@ -56,6 +59,13 @@ run (void *cls,
         const char *cfgfile,
         const struct GNUNET_CONFIGURATION_Handle *cfg)
 {
+       unsigned int i;
+       double cur, prev = DBL_MAX;
+       json_t *pmap;
+       json_t *parray;
+       json_t *pnode;
+       json_error_t jerr;
+
        /* cmdline parsing */
        if (GNUNET_TIME_UNIT_ZERO.rel_value_us == dstart.rel_value_us)
        {
@@ -82,6 +92,48 @@ run (void *cls,
                goto fail;
        }
 
+       /* parse and check pricemap validity */
+       if (!(pmap = json_load_file (fnprices, JSON_DECODE_INT_AS_REAL, &jerr)))
+       {
+               GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                           "parsing pricemap json at %d:%d: %s\n",
+                           jerr.line, jerr.column, jerr.text);
+               goto fail;
+       }
+       if (-1 == json_unpack_ex (pmap, &jerr, JSON_VALIDATE_ONLY,
+                                 "{s:s, s:[]}", "currency", "prices"))
+       {
+               GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                           "validating pricemap: %s\n", jerr.text);
+               goto fail;
+       }
+       if (!(parray = json_object_get (pmap, "prices")) || !json_is_array (parray))
+       {
+               GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                           "could not get `prices` array node from pricemap\n");
+               goto fail;
+       }
+       json_array_foreach (parray, i, pnode)
+       {
+               if (-1 == json_unpack_ex (pnode, &jerr, 0, "F", &cur))
+               {
+                       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                                   "validating pricearray index %d: %s\n", i, jerr.text);
+                       goto fail;
+               }
+               if (prev <= cur)
+               {
+                       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                                   "validating pricearray index %d: "
+                                   "prices must be strictly monotonically decreasing\n",
+                                   i);
+                       goto fail;
+               }
+               prev = cur;
+       }
+
+       return;
+
 fail:
        ret = 1;
        return;