convert fs publish to MQ
[oweals/gnunet.git] / src / peerinfo-tool / gnunet-peerinfo.c
index d826a805082f688517d789d6ad13886cba34e83a..b6aa224fd3ac54e0a0bfc3824886d9da8b0b0cbd 100644 (file)
@@ -1,6 +1,6 @@
 /*
      This file is part of GNUnet.
-     (C) 2001-2014 Christian Grothoff (and other contributing authors)
+     Copyright (C) 2001-2014 GNUnet e.V.
 
      GNUnet is free software; you can redistribute it and/or modify
      it under the terms of the GNU General Public License as published
@@ -14,8 +14,8 @@
 
      You should have received a copy of the GNU General Public License
      along with GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-     Boston, MA 02111-1307, USA.
+     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+     Boston, MA 02110-1301, USA.
 */
 
 /**
@@ -32,7 +32,7 @@
 #include "gnunet-peerinfo_plugins.h"
 
 /**
- * How long until we time out during peerinfo iterations?
+ * How long until we time out during address lookup?
  */
 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)
 
@@ -175,7 +175,17 @@ static const struct GNUNET_CONFIGURATION_Handle *cfg;
 /**
  * Main state machine task (if active).
  */
-static GNUNET_SCHEDULER_TaskIdentifier tt;
+static struct GNUNET_SCHEDULER_Task * tt;
+
+/**
+ * Pending #GNUNET_TRANSPORT_get_hello() operation.
+ */
+static struct GNUNET_TRANSPORT_GetHelloHandle *gh;
+
+/**
+ * Connection to transport service.
+ */
+static struct GNUNET_TRANSPORT_Handle *transport;
 
 /**
  * Current iterator context (if active, otherwise NULL).
@@ -200,7 +210,12 @@ static struct PrintContext *pc_tail;
 /**
  * Handle to current #GNUNET_PEERINFO_add_peer() operation.
  */
-static struct GNUNET_PEERINFO_AddContext *ac;
+static struct GNUNET_MQ_Envelope *ac;
+
+/**
+ * Hello of this peer (if initialized).
+ */
+static struct GNUNET_HELLO_Message *my_hello;
 
 
 /**
@@ -208,11 +223,9 @@ static struct GNUNET_PEERINFO_AddContext *ac;
  * runs the next requested function.
  *
  * @param cls unused
- * @param tc unused
  */
 static void
-state_machine (void *cls,
-              const struct GNUNET_SCHEDULER_TaskContext *tc);
+state_machine (void *cls);
 
 
 /* ********************* 'get_info' ******************* */
@@ -276,15 +289,19 @@ process_resolved_address (void *cls,
 
   if (NULL != address)
   {
-    if (NULL == ar->result)
+    if (0 != strlen (address))
+    {
+      if (NULL != ar->result)
+        GNUNET_free (ar->result);
       ar->result = GNUNET_strdup (address);
+    }
     return;
   }
   ar->atsc = NULL;
   if (GNUNET_SYSERR == res)
     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-             _("Failure: Cannot convert address to string for peer `%s'\n"),
-             GNUNET_i2s (&ar->pc->peer));
+                _("Failure: Cannot convert address to string for peer `%s'\n"),
+                GNUNET_i2s (&ar->pc->peer));
   pc->num_addresses++;
   if (pc->num_addresses == pc->address_list_size)
     dump_pc (pc);
@@ -331,6 +348,11 @@ print_address (void *cls,
   ar = &pc->address_list[--pc->off];
   ar->pc = pc;
   ar->expiration = expiration;
+  GNUNET_asprintf (&ar->result,
+                   "%s:%u:%u",
+                   address->transport_name,
+                   address->address_length,
+                   address->local_info);
   ar->atsc = GNUNET_TRANSPORT_address_to_string (cfg,
                                                  address,
                                                  no_resolve,
@@ -436,44 +458,23 @@ count_addr (void *cls,
  * @param err_msg error message
  */
 static void
-dump_my_hello (void *cls,
-               const struct GNUNET_PeerIdentity *peer,
-               const struct GNUNET_HELLO_Message *hello,
-               const char *err_msg)
+dump_my_hello ()
 {
   unsigned int size;
   unsigned int c_addr;
 
-  if (NULL == peer)
-  {
-    pic = NULL;
-    if (NULL != err_msg)
-      FPRINTF (stderr,
-              _("Error in communication with PEERINFO service: %s\n"),
-              err_msg);
-    tt = GNUNET_SCHEDULER_add_now (&state_machine,
-                                   NULL);
-    return;
-  }
-
-  if (NULL == hello)
-  {
-    FPRINTF (stderr,
-             _("Failure: Did not receive %s\n"),
-             "HELLO");
-    return;
-  }
-
-  size = GNUNET_HELLO_size (hello);
+  size = GNUNET_HELLO_size (my_hello);
   if (0 == size)
   {
     FPRINTF (stderr,
              _("Failure: Received invalid %s\n"),
              "HELLO");
-      return;
+    return;
   }
   if (GNUNET_SYSERR ==
-      GNUNET_DISK_fn_write (dump_hello, hello, size,
+      GNUNET_DISK_fn_write (dump_hello,
+                            my_hello,
+                            size,
                             GNUNET_DISK_PERM_USER_READ |
                             GNUNET_DISK_PERM_USER_WRITE |
                             GNUNET_DISK_PERM_GROUP_READ |
@@ -491,7 +492,7 @@ dump_my_hello (void *cls,
 
   }
   c_addr = 0;
-  GNUNET_HELLO_iterate_addresses (hello,
+  GNUNET_HELLO_iterate_addresses (my_hello,
                                   GNUNET_NO,
                                   count_addr,
                                   &c_addr);
@@ -500,7 +501,7 @@ dump_my_hello (void *cls,
   {
     FPRINTF (stderr,
              _("Wrote %s HELLO containing %u addresses with %u bytes to file `%s'\n"),
-             (GNUNET_YES == GNUNET_HELLO_is_friend_only(hello)) ? "friend-only": "public",
+             (GNUNET_YES == GNUNET_HELLO_is_friend_only (my_hello)) ? "friend-only": "public",
              c_addr,
              size,
              dump_hello);
@@ -527,6 +528,8 @@ print_my_uri (void *cls,
               const struct GNUNET_HELLO_Message *hello,
              const char *err_msg)
 {
+  char *uri;
+
   if (NULL == peer)
   {
     pic = NULL;
@@ -540,8 +543,8 @@ print_my_uri (void *cls,
 
   if (NULL == hello)
     return;
-  char *uri = GNUNET_HELLO_compose_uri (hello,
-                                        &GPI_plugins_find);
+  uri = GNUNET_HELLO_compose_uri (hello,
+                                  &GPI_plugins_find);
   if (NULL != uri)
   {
     printf ("%s\n",
@@ -558,17 +561,11 @@ print_my_uri (void *cls,
  * Continuation called from #GNUNET_PEERINFO_add_peer()
  *
  * @param cls closure, NULL
- * @param emsg error message, NULL on success
  */
 static void
-add_continuation (void *cls,
-                 const char *emsg)
+add_continuation (void *cls)
 {
   ac = NULL;
-  if (NULL != emsg)
-    fprintf (stderr,
-            _("Failure adding HELLO: %s\n"),
-            emsg);
   tt = GNUNET_SCHEDULER_add_now (&state_machine, NULL);
 }
 
@@ -596,7 +593,8 @@ parse_hello_uri (const char *put_uri)
   {
     /* WARNING: this adds the address from URI WITHOUT verification! */
     if (GNUNET_OK == ret)
-      ac = GNUNET_PEERINFO_add_peer (peerinfo, hello,
+      ac = GNUNET_PEERINFO_add_peer (peerinfo,
+                                     hello,
                                      &add_continuation,
                                      NULL);
     else
@@ -615,11 +613,9 @@ parse_hello_uri (const char *put_uri)
  * runs the next requested function.
  *
  * @param cls unused
- * @param tc scheduler context
  */
 static void
-shutdown_task (void *cls,
-              const struct GNUNET_SCHEDULER_TaskContext *tc)
+shutdown_task (void *cls)
 {
   struct PrintContext *pc;
   struct AddressRecord *ar;
@@ -627,19 +623,29 @@ shutdown_task (void *cls,
 
   if (NULL != ac)
   {
-    GNUNET_PEERINFO_add_peer_cancel (ac);
+    GNUNET_MQ_send_cancel (ac);
     ac = NULL;
   }
-  if (GNUNET_SCHEDULER_NO_TASK != tt)
+  if (NULL != tt)
   {
     GNUNET_SCHEDULER_cancel (tt);
-    tt = GNUNET_SCHEDULER_NO_TASK;
+    tt = NULL;
   }
   if (NULL != pic)
   {
     GNUNET_PEERINFO_iterate_cancel (pic);
     pic = NULL;
   }
+  if (NULL != gh)
+  {
+    GNUNET_TRANSPORT_get_hello_cancel (gh);
+    gh = NULL;
+  }
+  if (NULL != transport)
+  {
+    GNUNET_TRANSPORT_disconnect (transport);
+    transport = NULL;
+  }
   while (NULL != (pc = pc_head))
   {
     GNUNET_CONTAINER_DLL_remove (pc_head,
@@ -664,6 +670,43 @@ shutdown_task (void *cls,
     GNUNET_PEERINFO_disconnect (peerinfo);
     peerinfo = NULL;
   }
+  if (NULL != my_hello)
+  {
+    GNUNET_free (my_hello);
+    my_hello = NULL;
+  }
+}
+
+
+/**
+ * Function called with our peer's HELLO message.
+ * Used to obtain our peer's public key.
+ *
+ * @param cls NULL
+ * @param hello the HELLO message
+ */
+static void
+hello_callback (void *cls,
+                const struct GNUNET_MessageHeader *hello)
+{
+  if (NULL == hello)
+  {
+    fprintf (stderr,
+             _("Failed to get my own HELLO from this peer!\n"));
+    GNUNET_SCHEDULER_shutdown ();
+    return;
+  }
+  my_hello = (struct GNUNET_HELLO_Message *) GNUNET_copy_message (hello);
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_HELLO_get_id (my_hello,
+                                      &my_peer_identity));
+  GNUNET_TRANSPORT_get_hello_cancel (gh);
+  gh = NULL;
+  GNUNET_TRANSPORT_disconnect (transport);
+  transport = NULL;
+  if (NULL != dump_hello)
+    dump_my_hello ();
+  tt = GNUNET_SCHEDULER_add_now (&state_machine, NULL);
 }
 
 
@@ -678,9 +721,6 @@ static void
 testservice_task (void *cls,
                   int result)
 {
-  struct GNUNET_CRYPTO_EddsaPrivateKey *priv;
-  char *fn;
-
   if (GNUNET_YES != result)
   {
     FPRINTF (stderr,
@@ -700,36 +740,20 @@ testservice_task (void *cls,
        (GNUNET_YES == get_uri) ||
        (NULL != dump_hello) )
   {
-    /* load private key */
-    if (GNUNET_OK !=
-        GNUNET_CONFIGURATION_get_value_filename (cfg,
-                                                 "PEER",
-                                                 "PRIVATE_KEY",
-                                                 &fn))
-    {
-      GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                                 "PEER",
-                                 "PRIVATE_KEY");
-      return;
-    }
-    if (NULL == (priv = GNUNET_CRYPTO_eddsa_key_create_from_file (fn)))
-    {
-      FPRINTF (stderr,
-               _("Loading hostkey from `%s' failed.\n"),
-               fn);
-      GNUNET_free (fn);
-      return;
-    }
-    GNUNET_free (fn);
-    GNUNET_CRYPTO_eddsa_key_get_public (priv,
-                                        &my_peer_identity.public_key);
-    GNUNET_free (priv);
+    transport = GNUNET_TRANSPORT_connect (cfg,
+                                          NULL,
+                                          NULL,
+                                          NULL, NULL, NULL);
+    gh = GNUNET_TRANSPORT_get_hello (transport,
+                                     &hello_callback,
+                                     NULL);
   }
-
-  tt = GNUNET_SCHEDULER_add_now (&state_machine, NULL);
-  GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
-                                &shutdown_task,
-                                NULL);
+  else
+  {
+    tt = GNUNET_SCHEDULER_add_now (&state_machine, NULL);
+  }
+  GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
+                                NULL);
 }
 
 
@@ -775,13 +799,11 @@ run (void *cls,
  * runs the next requested function.
  *
  * @param cls unused
- * @param tc scheduler context
  */
 static void
-state_machine (void *cls,
-              const struct GNUNET_SCHEDULER_TaskContext *tc)
+state_machine (void *cls)
 {
-  tt = GNUNET_SCHEDULER_NO_TASK;
+  tt = NULL;
 
   if (NULL != put_uri)
   {
@@ -803,7 +825,6 @@ state_machine (void *cls,
     pic = GNUNET_PEERINFO_iterate (peerinfo,
                                    include_friend_only,
                                    NULL,
-                                  TIMEOUT,
                                   &print_peer_info, NULL);
   }
   else if (GNUNET_YES == get_self)
@@ -823,18 +844,9 @@ state_machine (void *cls,
     pic = GNUNET_PEERINFO_iterate (peerinfo,
                                    include_friend_only,
                                    &my_peer_identity,
-                                  TIMEOUT,
                                    &print_my_uri, NULL);
     get_uri = GNUNET_NO;
   }
-  else if (NULL != dump_hello)
-  {
-    pic = GNUNET_PEERINFO_iterate (peerinfo,
-                                   include_friend_only,
-                                   &my_peer_identity,
-                                  TIMEOUT,
-                                   &dump_my_hello, NULL);
-  }
   else if (GNUNET_YES == default_operation)
   {
     /* default operation list all */
@@ -843,8 +855,8 @@ state_machine (void *cls,
     tt = GNUNET_SCHEDULER_add_now (&state_machine, NULL);
   }
   else
-    {
-      GNUNET_SCHEDULER_shutdown ();
+  {
+    GNUNET_SCHEDULER_shutdown ();
   }
   default_operation = GNUNET_NO;
 }