integrate new REST calls, add timeout to helper invocations

src/exchange/taler-exchange-httpd.c

@@ -606,8 +606,6 @@ handle_post_management (const struct TEH_RequestHandler *rh,
                                                       &exchange_pub,
                                                       root);
   }
-#if FIXME
-  /* not yet implemented! */
   if (0 == strcmp (args[0],
                    "keys"))
   {
@@ -619,7 +617,6 @@ handle_post_management (const struct TEH_RequestHandler *rh,
     return TEH_handler_management_post_keys (connection,
                                              root);
   }
-#endif
   if (0 == strcmp (args[0],
                    "wire"))
   {
@@ -808,7 +805,7 @@ handle_mhd_request (void *cls,
     {
       .url = "keys",
       .method = MHD_HTTP_METHOD_GET,
-      .handler.get = &TEH_handler_keys,
+      .handler.get = &TEH_handler_keys, // FIXME => TEH_keys_get_handler
     },
     /* Requests for wiring information */
     {

src/exchange/taler-exchange-httpd_keys.c

@@ -1700,7 +1700,7 @@ krd_search_comparator (const void *key,
 
 
 MHD_RESULT
-TEH_handler_keys_NEW (const struct TEH_RequestHandler *rh,
+TEH_keys_get_handler (const struct TEH_RequestHandler *rh,
                       struct MHD_Connection *connection,
                       const char *const args[])
 {

src/util/crypto_helper_denom.c

@@ -22,6 +22,7 @@
 #include "taler_util.h"
 #include "taler_signatures.h"
 #include "taler-helper-crypto-rsa.h"
+#include <poll.h>
 
 
 struct TALER_CRYPTO_DenominationHelper
@@ -465,6 +466,35 @@ TALER_CRYPTO_helper_denom_sign (
     const struct GNUNET_MessageHeader *hdr
       = (const struct GNUNET_MessageHeader *) buf;
 
+    {
+      /* wait for reply with 5s timeout */
+      struct pollfd pfd = {
+        .fd = dh->sock,
+        .events = POLLIN
+      };
+      sigset_t sigmask;
+      struct timespec ts = {
+        .tv_sec = 5
+      };
+
+      GNUNET_assert (0 == sigemptyset (&sigmask));
+      GNUNET_assert (0 == sigaddset (&sigmask, SIGTERM));
+      GNUNET_assert (0 == sigaddset (&sigmask, SIGHUP));
+      ret = ppoll (&pfd,
+                   1,
+                   &ts,
+                   &sigmask);
+      if ( (-1 == ret) &&
+           (EINTR != errno) )
+        GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR,
+                             "ppoll");
+      if (0 >= ret)
+      {
+        do_disconnect (dh);
+        *ec = TALER_EC_GENERIC_TIMEOUT;
+        return ds;
+      }
+    }
     ret = recv (dh->sock,
                 buf,
                 sizeof (buf),

src/util/crypto_helper_esign.c

@@ -22,6 +22,7 @@
 #include "taler_util.h"
 #include "taler_signatures.h"
 #include "taler-helper-crypto-eddsa.h"
+#include <poll.h>
 
 
 struct TALER_CRYPTO_ExchangeSignHelper
@@ -421,6 +422,34 @@ TALER_CRYPTO_helper_esign_sign_ (
     const struct GNUNET_MessageHeader *hdr
       = (const struct GNUNET_MessageHeader *) buf;
 
+    {
+      /* wait for reply with 5s timeout */
+      struct pollfd pfd = {
+        .fd = esh->sock,
+        .events = POLLIN
+      };
+      sigset_t sigmask;
+      struct timespec ts = {
+        .tv_sec = 5
+      };
+
+      GNUNET_assert (0 == sigemptyset (&sigmask));
+      GNUNET_assert (0 == sigaddset (&sigmask, SIGTERM));
+      GNUNET_assert (0 == sigaddset (&sigmask, SIGHUP));
+      ret = ppoll (&pfd,
+                   1,
+                   &ts,
+                   &sigmask);
+      if ( (-1 == ret) &&
+           (EINTR != errno) )
+        GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR,
+                             "ppoll");
+      if (0 >= ret)
+      {
+        do_disconnect (esh);
+        return TALER_EC_GENERIC_TIMEOUT;
+      }
+    }
     ret = recv (esh->sock,
                 buf,
                 sizeof (buf),