auction: add pricemap validation

1 files changed, 52 insertions, 0 deletions

diff --git a/src/auction/gnunet-auction-create.c b/src/auction/gnunet-auction-create.c
index c21e93f26..dc43f635e 100644
--- 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;