1 files changed, 98 insertions, 62 deletions

diff --git a/src/namestore/gnunet-namestore-fcfsd.c b/src/namestore/gnunet-namestore-fcfsd.c
index 903253b1a..f4cdf26b4 100644
--- a/src/namestore/gnunet-namestore-fcfsd.c
+++ b/src/namestore/gnunet-namestore-fcfsd.c
@@ -2,20 +2,18 @@
      This file is part of GNUnet.
      Copyright (C) 2012-2014 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
-     by the Free Software Foundation; either version 3, or (at your
-     option) any later version.
+     GNUnet is free software: you can redistribute it and/or modify it
+     under the terms of the GNU Affero General Public License as published
+     by the Free Software Foundation, either version 3 of the License,
+     or (at your option) any later version.
 
      GNUnet is distributed in the hope that it will be useful, but
      WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-     General Public License for more details.
-
-     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., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     Affero General Public License for more details.
+    
+     You should have received a copy of the GNU Affero General Public License
+     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 /**
  * @file gnunet-namestore-fcfsd.c
@@ -161,11 +159,6 @@ struct Request
 struct ZoneinfoRequest
 {
   /**
-   * Connection
-   */
-  struct MHD_Connection *connection;
-
-  /**
    * List iterator
    */
   struct GNUNET_NAMESTORE_ZoneIterator *list_it;
@@ -212,6 +205,16 @@ static struct GNUNET_CRYPTO_EcdsaPrivateKey fcfs_zone_pkey;
 static struct GNUNET_IDENTITY_Handle *identity;
 
 /**
+ * Zoneinfo page we currently use.
+ */
+static struct MHD_Response *info_page;
+
+/**
+ * Task that runs #update_zoneinfo_page peridicially.
+ */
+static struct GNUNET_SCHEDULER_Task *uzp_task;
+
+/**
  * Request for our ego.
  */
 static struct GNUNET_IDENTITY_Operation *id_op;
@@ -221,6 +224,11 @@ static struct GNUNET_IDENTITY_Operation *id_op;
  */
 static unsigned long long port;
 
+/**
+ * Name of the zone we manage.
+ */
+static char *zone;
+
 
 /**
  * Task run whenever HTTP server operations are pending.
@@ -247,25 +255,25 @@ run_httpd_now ()
 
 
 /**
+ * Create fresh version of zone information.
+ */
+static void
+update_zoneinfo_page (void *cls);
+
+  
+/**
  * Function called on error in zone iteration.
  */
 static void
 zone_iteration_error (void *cls)
 {
   struct ZoneinfoRequest *zr = cls;
-  struct MHD_Response *response;
 
   zr->list_it = NULL;
-  response = MHD_create_response_from_buffer (strlen ("internal error"),
-                                              (void *) "internal error",
-                                              MHD_RESPMEM_PERSISTENT);
-  MHD_queue_response (zr->connection,
-                      MHD_HTTP_INTERNAL_SERVER_ERROR,
-                      response);
-  MHD_destroy_response (response);
   GNUNET_free (zr->zoneinfo);
-  GNUNET_free (zr);
-  run_httpd_now ();
+  GNUNET_SCHEDULER_cancel (uzp_task);
+  uzp_task = GNUNET_SCHEDULER_add_now (&update_zoneinfo_page,
+                                       NULL);
 }
 
 
@@ -292,13 +300,9 @@ zone_iteration_end (void *cls)
   MHD_add_response_header (response,
                            MHD_HTTP_HEADER_CONTENT_TYPE,
                            MIME_HTML);
-  MHD_queue_response (zr->connection,
-                      MHD_HTTP_OK,
-                      response);
-  MHD_destroy_response (response);
+  MHD_destroy_response (info_page);
+  info_page = response;
   GNUNET_free (zr->zoneinfo);
-  GNUNET_free (zr);
-  run_httpd_now ();
 }
 
 
@@ -373,27 +377,41 @@ iterate_cb (void *cls,
  * Handler that returns FCFS zoneinfo page.
  *
  * @param connection connection to use
- * @return MHD_YES on success
  */
-static int
+static int 
 serve_zoneinfo_page (struct MHD_Connection *connection)
 {
-  struct ZoneinfoRequest *zr;
-
-  zr = GNUNET_new (struct ZoneinfoRequest);
-  zr->zoneinfo = GNUNET_malloc (DEFAULT_ZONEINFO_BUFSIZE);
-  zr->buf_len = DEFAULT_ZONEINFO_BUFSIZE;
-  zr->connection = connection;
-  zr->write_offset = 0;
-  zr->list_it = GNUNET_NAMESTORE_zone_iteration_start (ns,
-                                                       &fcfs_zone_pkey,
-                                                       &zone_iteration_error,
-                                                       zr,
-                                                       &iterate_cb,
-                                                       zr,
-                                                       &zone_iteration_end,
-                                                       zr);
-  return MHD_YES;
+  return MHD_queue_response (connection,
+                             MHD_HTTP_OK,
+                             info_page);
+}
+
+
+/**
+ * Create fresh version of zone information.
+ */
+static void
+update_zoneinfo_page (void *cls)
+{  
+  static struct ZoneinfoRequest zr;
+
+  (void) cls;
+  uzp_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_MINUTES,
+                                           &update_zoneinfo_page,
+                                           NULL);
+  if (NULL != zr.list_it)
+    return;  
+  zr.zoneinfo = GNUNET_malloc (DEFAULT_ZONEINFO_BUFSIZE);
+  zr.buf_len = DEFAULT_ZONEINFO_BUFSIZE;
+  zr.write_offset = 0;
+  zr.list_it = GNUNET_NAMESTORE_zone_iteration_start (ns,
+                                                      &fcfs_zone_pkey,
+                                                      &zone_iteration_error,
+                                                      &zr,
+                                                      &iterate_cb,
+                                                      &zr,
+                                                      &zone_iteration_end,
+                                                      &zr);
 }
 
 
@@ -401,7 +419,7 @@ serve_zoneinfo_page (struct MHD_Connection *connection)
  * Handler that returns a simple static HTTP page.
  *
  * @param connection connection to use
- * @return MHD_YES on success
+ * @return #MHD_YES on success
  */
 static int
 serve_main_page (struct MHD_Connection *connection)
@@ -634,14 +652,14 @@ lookup_block_error (void *cls)
  * and continue to process the result.
  *
  * @param cls the 'struct Request' we are processing
- * @param zone private key of the zone; NULL on disconnect
+ * @param zonekey private key of the zone; NULL on disconnect
  * @param label label of the records; NULL on disconnect
  * @param rd_count number of entries in @a rd array, 0 if label was deleted
  * @param rd array of records with data to store
  */
 static void
 lookup_block_processor (void *cls,
-                        const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
+                        const struct GNUNET_CRYPTO_EcdsaPrivateKey *zonekey,
                         const char *label,
                         unsigned int rd_count,
                         const struct GNUNET_GNSRECORD_Data *rd)
@@ -650,7 +668,7 @@ lookup_block_processor (void *cls,
 
   (void) label;
   (void) rd;
-  (void) zone;
+  (void) zonekey;
   request->qe = NULL;
   if (0 == rd_count)
   {
@@ -703,8 +721,8 @@ lookup_block_processor (void *cls,
  *        @a upload_data provided; the method must update this
  *        value to the number of bytes NOT processed;
  * @param ptr pointer to location where we store the 'struct Request'
- * @return MHD_YES if the connection was handled successfully,
- *         MHD_NO if the socket must be closed due to a serious
+ * @return #MHD_YES if the connection was handled successfully,
+ *         #MHD_NO if the socket must be closed due to a serious
  *         error while handling the request
  */
 static int
@@ -959,6 +977,11 @@ do_shutdown (void *cls)
     GNUNET_SCHEDULER_cancel (httpd_task);
     httpd_task = NULL;
   }
+  if (NULL != uzp_task)
+  {
+    GNUNET_SCHEDULER_cancel (uzp_task);
+    uzp_task = NULL;
+  }
   if (NULL != ns)
   {
     GNUNET_NAMESTORE_disconnect (ns);
@@ -1011,12 +1034,16 @@ identity_cb (void *cls,
 
   (void) cls;
   (void) ctx;
-  (void) name;
-  id_op = NULL;
+  if (NULL == name)
+    return;
+  if (0 != strcmp (name,
+                   zone))
+    return;
   if (NULL == ego)
   {
     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                 _("No ego configured for `fcfsd` subsystem\n"));
+    GNUNET_SCHEDULER_shutdown ();
     return;
   }
   fcfs_zone_pkey = *GNUNET_IDENTITY_ego_get_private_key (ego);
@@ -1041,6 +1068,7 @@ identity_cb (void *cls,
   while (NULL == httpd);
   if (NULL == httpd)
   {
+
     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                 _("Failed to start HTTP server\n"));
     GNUNET_SCHEDULER_shutdown ();
@@ -1085,16 +1113,18 @@ run (void *cls,
       return;
     }
   identity = GNUNET_IDENTITY_connect (cfg,
-                                      NULL, NULL);
+                                      &identity_cb,
+                                      NULL);
   if (NULL == identity)
   {
     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                 _("Failed to connect to identity\n"));
     return;
   }
-  id_op = GNUNET_IDENTITY_get (identity, "fcfsd",
-                               &identity_cb, NULL);
-  GNUNET_SCHEDULER_add_shutdown (&do_shutdown, NULL);
+  uzp_task = GNUNET_SCHEDULER_add_now (&update_zoneinfo_page,
+                                       NULL);
+  GNUNET_SCHEDULER_add_shutdown (&do_shutdown,
+                                 NULL);
 }
 
 
@@ -1109,7 +1139,13 @@ int
 main (int argc,
       char *const *argv)
 {
-  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+  struct GNUNET_GETOPT_CommandLineOption options[] = {
+    GNUNET_GETOPT_option_mandatory 
+    (GNUNET_GETOPT_option_string ('z',
+                                  "zone",
+                                  "EGO",
+                                  gettext_noop ("name of the zone that is to be managed by FCFSD"),
+                                  &zone)),
     GNUNET_GETOPT_OPTION_END
   };
   int ret;