WiP: added auction_brandt as extension

- added an extension to handle auctions via libbrandt
  - /extensions/auction_brandt GET and POST handler defined
  - initial parsing of transcript.json implemented, yet WiP

- multiple cleanups and changes to extension handling

1 files changed, 11 insertions, 2 deletions

diff --git a/src/include/taler_extensions.h b/src/include/taler_extensions.h
index 40b14402..1ae8ad1e 100644
--- a/src/include/taler_extensions.h
+++ b/src/include/taler_extensions.h
@@ -31,8 +31,12 @@
 
 enum TALER_Extension_Type
 {
-  TALER_Extension_AgeRestriction = 0,
-  TALER_Extension_MaxPredefined = 1 // Must be last of the predefined
+  TALER_Extension_Refund = 0,
+  TALER_Extension_AgeRestriction = 1,
+  TALER_Extension_P2P = 2,
+  TALER_Extension_AuctionBrandt = 3,
+  TALER_Extension_Escrow = 4,
+  TALER_Extension_MaxPredefined = 5 // Must be last of the predefined
 };
 
 
@@ -59,6 +63,7 @@ struct TALER_Extension
   char *version;
   void *config;
   bool enabled;
+  bool has_config; /* some extension might not have a configuration */
   json_t *config_json;
 
   void (*disable)(struct TALER_Extension *ext);
@@ -78,6 +83,10 @@ struct TALER_Extension
     const json_t *root,
     const char *const args[]);
 
+  MHD_RESULT (*http_get_handler)(
+    struct MHD_Connection *connection,
+    const char *const args[]);
+
 };
 
 /**