(no commit message)

[oweals/gnunet.git] / src / transport / plugin_transport_http.c

diff --git a/src/transport/plugin_transport_http.c b/src/transport/plugin_transport_http.c
index dabb57a8e99831539896783baa8943474ddeac1f..f71acf4b0cbb0c703748bc67a60a900962747a9c 100644 (file)
--- a/src/transport/plugin_transport_http.c
+++ b/src/transport/plugin_transport_http.c
@@ -4,7 +4,7 @@
 
      GNUnet is free software; you can redistribute it and/or modify
      it under the terms of the GNU General Public License as published
 
      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 2, or (at your
+     by the Free Software Foundation; either version 3, or (at your

      option) any later version.
 
      GNUnet is distributed in the hope that it will be useful, but
      option) any later version.
 
      GNUnet is distributed in the hope that it will be useful, but


@@ -28,7 +28,6 @@
 #include "gnunet_constants.h"
 #include "gnunet_protocols.h"
 #include "gnunet_connection_lib.h"
 #include "gnunet_constants.h"
 #include "gnunet_protocols.h"
 #include "gnunet_connection_lib.h"

-#include "gnunet_server_lib.h"

 #include "gnunet_service_lib.h"
 #include "gnunet_statistics_service.h"
 #include "gnunet_transport_service.h"
 #include "gnunet_service_lib.h"
 #include "gnunet_statistics_service.h"
 #include "gnunet_transport_service.h"


@@ -43,6 +42,10 @@
 
 #define DEBUG_CURL GNUNET_NO
 #define DEBUG_HTTP GNUNET_NO
 
 #define DEBUG_CURL GNUNET_NO
 #define DEBUG_HTTP GNUNET_NO

+#define DEBUG_CONNECTIONS GNUNET_YES
+
+#define INBOUND GNUNET_NO
+#define OUTBOUND GNUNET_YES

 
 /**
  * Text of the response sent back after the last bytes of a PUT
 
 /**
  * Text of the response sent back after the last bytes of a PUT


@@ -68,12 +71,6 @@
  */
 #define HTTP_CONNECT_TIMEOUT 30
 
  */
 #define HTTP_CONNECT_TIMEOUT 30
 

-/**
- * Timeout for a http connect
- */
-#define HTTP_MESSAGE_INITIAL_BUFFERSIZE GNUNET_SERVER_MAX_MESSAGE_SIZE
-
-

 /**
  * Network format for IPv4 addresses.
  */
 /**
  * Network format for IPv4 addresses.
  */


@@ -82,12 +79,12 @@ struct IPv4HttpAddress
   /**
    * IPv4 address, in network byte order.
    */
   /**
    * IPv4 address, in network byte order.
    */

-  uint32_t ipv4_addr;
+  uint32_t ipv4_addr GNUNET_PACKED;

 
   /**
    * Port number, in network byte order.
    */
 
   /**
    * Port number, in network byte order.
    */

-  uint16_t u_port;
+  uint16_t u_port GNUNET_PACKED;

 
 };
 
 
 };
 


@@ -100,17 +97,16 @@ struct IPv6HttpAddress
   /**
    * IPv6 address.
    */
   /**
    * IPv6 address.
    */

-  struct in6_addr ipv6_addr;
+  struct in6_addr ipv6_addr GNUNET_PACKED;

 
   /**
    * Port number, in network byte order.
    */
 
   /**
    * Port number, in network byte order.
    */

-  uint16_t u6_port;
+  uint16_t u6_port GNUNET_PACKED;

 
 };
 
 
 
 };
 
 

-

 /**
  *  Message to send using http
  */
 /**
  *  Message to send using http
  */


@@ -139,9 +135,7 @@ struct HTTP_Message
   /**
    * buffer length
    */
   /**
    * buffer length
    */

-  size_t len;
-  
-  char * dest_url;
+  size_t size;

 
   /**
    * Continuation function to call once the transmission buffer
 
   /**
    * Continuation function to call once the transmission buffer


@@ -157,16 +151,12 @@ struct HTTP_Message
 };
 
 
 };
 
 

-/**
- * Session handle for connections.
- */
-struct Session
+struct HTTP_PeerContext

 {
 {

-

   /**
   /**

-   * Stored in a linked list.
+   * peer's identity

    */
    */

-  struct Session *next;
+  struct GNUNET_PeerIdentity identity;

 
   /**
    * Pointer to the global plugin struct.
 
   /**
    * Pointer to the global plugin struct.


@@ -174,93 +164,134 @@ struct Session
   struct Plugin *plugin;
 
   /**
   struct Plugin *plugin;
 
   /**

-   * To whom are we talking to (set to our identity
-   * if we are still waiting for the welcome message)
+   * Linked list of connections with this peer
+   * head
+   */
+  struct Session * head;
+
+  /**
+   * Linked list of connections with this peer
+   * tail
+   */
+  struct Session * tail;
+
+  /**
+   * id for next session
+   */
+  size_t session_id_counter;
+};
+
+
+struct Session
+{
+  /**
+   * API requirement.
+   */
+  struct SessionHeader header;
+
+  /**
+   * next session in linked list

    */
    */

-  struct GNUNET_PeerIdentity partner;
+  struct Session * next;

 
   /**
 
   /**

-   * Sender's ip address to distinguish between incoming connections
+   * previous session in linked list

    */
    */

-  //struct sockaddr_in * addr_inbound;
+  struct Session * prev;

 
   /**
 
   /**

-   * Sender's ip address to distinguish between incoming connections
+   * address of this session

    */
    */

-  void * addr_in;
+  void * addr;

 
 

-  size_t addr_in_len;
+  /**
+   * address length
+   */
+  size_t addrlen;

 
 

-  void * addr_out;
+  /**
+   * target url
+   */
+  char * url;

 
 

-  size_t addr_out_len;
+  /**
+   * Message queue for outbound messages
+   * head of queue
+   */
+  struct HTTP_Message * pending_msgs_head;

 
   /**
 
   /**

-   * Did we initiate the connection (GNUNET_YES) or the other peer (GNUNET_NO)?
+   * Message queue for outbound messages
+   * tail of queue

    */
    */

-  int is_client;
+  struct HTTP_Message * pending_msgs_tail;

 
   /**
 
   /**

-   * Is the connection active (GNUNET_YES) or terminated (GNUNET_NO)?
+   * partner peer this connection belongs to

    */
    */

-  int is_active;
+  struct HTTP_PeerContext * peercontext;

 
   /**
 
   /**

-   * At what time did we reset last_received last?
+   * message stream tokenizer for incoming data

    */
    */

-  struct GNUNET_TIME_Absolute last_quota_update;
+  struct GNUNET_SERVER_MessageStreamTokenizer *msgtok;

 
   /**
 
   /**

-   * How many bytes have we received since the "last_quota_update"
-   * timestamp?
+   * session direction
+   * outbound: OUTBOUND (GNUNET_YES)
+   * inbound : INBOUND (GNUNET_NO)

    */
    */

-  uint64_t last_received;
+  unsigned int direction;

 
   /**
 
   /**

-   * Number of bytes per ms that this peer is allowed
-   * to send to us.
+   * is session connected to send data?

    */
    */

-  uint32_t quota;
+  unsigned int send_connected;

 
   /**
 
   /**

-   * Is there a HTTP/PUT in progress?
+   * is send connection active?

    */
    */

-  int is_put_in_progress;
+  unsigned int send_active;

 
   /**
 
   /**

-   * Is the http request invalid?
+   * connection disconnect forced (e.g. from transport)

    */
    */

-  int is_bad_request;
+  unsigned int send_force_disconnect;

 
   /**
 
   /**

-   * Encoded hash
+   * is session connected to receive data?

    */
    */

-  struct GNUNET_CRYPTO_HashAsciiEncoded hash;
+  unsigned int recv_connected;

 
   /**
 
   /**

-   * Head of dll used to store outbound messages
+   * is receive connection active?

    */
    */

-  struct HTTP_Message * pending_outbound_msg_head;
+  unsigned int recv_active;

 
   /**
 
   /**

-   * Tail of dll used to store outbound messages
+   * connection disconnect forced (e.g. from transport)

    */
    */

-  struct HTTP_Message * pending_outbound_msg_tail;
+  unsigned int recv_force_disconnect;

 
   /**
 
   /**

-   * Incoming message
+   * id for next session
+   * NOTE: 0 is not an ID, zero is not defined. A correct ID is always > 0

    */
    */

-  struct HTTP_Message * pending_inbound_msg;
+  size_t session_id;

 
   /**
 
   /**

-   * curl handle for outbound transmissions
+   * entity managing sending data
+   * outbound session: CURL *
+   * inbound session: mhd_connection *

    */
    */

-  CURL *curl_handle;
+  void * send_endpoint;

 
   /**
 
   /**

-   * Message tokenizer for incoming data
+   * entity managing recieving data
+   * outbound session: CURL *
+   * inbound session: mhd_connection *

    */
    */

-  struct GNUNET_SERVER_MessageStreamTokenizer * msgtok;
+  void * recv_endpoint;

 };
 
 /**
 };
 
 /**


@@ -275,35 +306,32 @@ struct Plugin
 
   unsigned int port_inbound;
 
 
   unsigned int port_inbound;
 

-  /**
-   * Hashmap for all existing sessions.
-   */
-  struct GNUNET_CONTAINER_MultiHashMap *sessions;
+  struct GNUNET_CONTAINER_MultiHashMap *peers;

 
   /**
    * Daemon for listening for new IPv4 connections.
    */
 
   /**
    * Daemon for listening for new IPv4 connections.
    */

-  struct MHD_Daemon *http_daemon_v4;
+  struct MHD_Daemon *http_server_daemon_v4;

 
   /**
    * Daemon for listening for new IPv6connections.
    */
 
   /**
    * Daemon for listening for new IPv6connections.
    */

-  struct MHD_Daemon *http_daemon_v6;
+  struct MHD_Daemon *http_server_daemon_v6;

 
   /**
    * Our primary task for http daemon handling IPv4 connections
    */
 
   /**
    * Our primary task for http daemon handling IPv4 connections
    */

-  GNUNET_SCHEDULER_TaskIdentifier http_task_v4;
+  GNUNET_SCHEDULER_TaskIdentifier http_server_task_v4;

 
   /**
    * Our primary task for http daemon handling IPv6 connections
    */
 
   /**
    * Our primary task for http daemon handling IPv6 connections
    */

-  GNUNET_SCHEDULER_TaskIdentifier http_task_v6;
+  GNUNET_SCHEDULER_TaskIdentifier http_server_task_v6;

 
   /**
    * The task sending data
    */
 
   /**
    * The task sending data
    */

-  GNUNET_SCHEDULER_TaskIdentifier http_task_send;
+  GNUNET_SCHEDULER_TaskIdentifier http_server_task_send;

 
   /**
    * cURL Multihandle
 
   /**
    * cURL Multihandle


@@ -317,85 +345,198 @@ struct Plugin
   struct GNUNET_CRYPTO_HashAsciiEncoded my_ascii_hash_ident;
 };
 
   struct GNUNET_CRYPTO_HashAsciiEncoded my_ascii_hash_ident;
 };
 

+

 /**
 /**

- * Create a new session
+ * Function called for a quick conversion of the binary address to
+ * a numeric address.  Note that the caller must not free the
+ * address and that the next call to this function is allowed
+ * to override the address again.

  *
  *

- * @param addr_in address the peer is using inbound
- * @param addr_out address the peer is using outbound
- * @param peer identity
- * @return created session object
+ * @param cls closure
+ * @param addr binary address
+ * @param addrlen length of the address
+ * @return string representing the same address

  */
  */

-static struct Session * create_session (void * cls, char * addr_in, size_t addrlen_in, char * addr_out, size_t addrlen_out, const struct GNUNET_PeerIdentity *peer)
+static const char*
+http_plugin_address_to_string (void *cls,
+                                   const void *addr,
+                                   size_t addrlen);
+
+static char * create_url(void * cls, const void * addr, size_t addrlen, size_t id)

 {
   struct Plugin *plugin = cls;
 {
   struct Plugin *plugin = cls;

-  struct Session * ses = GNUNET_malloc ( sizeof( struct Session) );
+  char *url = NULL;

 
 

-  GNUNET_assert(cls !=NULL);
-  if (addrlen_in != 0)
+  GNUNET_assert ((addr!=NULL) && (addrlen != 0));
+  GNUNET_asprintf(&url,
+                  "http://%s/%s;%u",
+                  http_plugin_address_to_string(NULL, addr, addrlen),
+                  (char *) (&plugin->my_ascii_hash_ident),id);
+
+  return url;
+}
+
+/**
+ * Removes a message from the linked list of messages
+ * @param con connection to remove message from
+ * @param msg message to remove
+ * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
+ */
+static int remove_http_message (struct Session * ps, struct HTTP_Message * msg)
+{
+  GNUNET_CONTAINER_DLL_remove(ps->pending_msgs_head,ps->pending_msgs_tail,msg);
+  GNUNET_free(msg);
+  return GNUNET_OK;
+}
+
+/**
+ * Removes a session from the linked list of sessions
+ * @param pc peer context
+ * @param ps session
+ * @param call_msg_cont GNUNET_YES to call pending message continuations, otherwise no
+ * @param call_msg_cont_result, result to call message continuations with
+ * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
+ */
+static int remove_session (struct HTTP_PeerContext * pc, struct Session * ps,  int call_msg_cont, int call_msg_cont_result)
+{
+  struct HTTP_Message * msg;
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: removing %s session with id %u\n", ps, (ps->direction == INBOUND) ? "inbound" : "outbound",ps->session_id);
+  GNUNET_free_non_null (ps->addr);
+  GNUNET_SERVER_mst_destroy (ps->msgtok);
+  GNUNET_free(ps->url);
+
+  msg = ps->pending_msgs_head;
+  while (msg!=NULL)

   {
   {

-    ses->addr_in = GNUNET_malloc (addrlen_in);
-    ses->addr_in_len = addrlen_in;
-    memcpy(ses->addr_in,addr_in,addrlen_in);
+    if ((call_msg_cont == GNUNET_YES) && (msg->transmit_cont!=NULL))
+    {
+      msg->transmit_cont (msg->transmit_cont_cls,&pc->identity,call_msg_cont_result);
+    }
+    GNUNET_free(msg);
+    GNUNET_CONTAINER_DLL_remove(ps->pending_msgs_head,ps->pending_msgs_head,msg);

   }
 
   }
 

-  if (addrlen_out != 0)
+  GNUNET_CONTAINER_DLL_remove(pc->head,pc->tail,ps);
+  GNUNET_free(ps);
+  ps = NULL;
+  return GNUNET_OK;
+}
+
+static struct Session * get_Session (void * cls, struct HTTP_PeerContext *pc, const void * addr, size_t addr_len)
+{
+  struct Session * cc = pc->head;
+  struct Session * con = NULL;
+  unsigned int count = 0;
+
+  GNUNET_assert((addr_len == sizeof (struct IPv4HttpAddress)) || (addr_len == sizeof (struct IPv6HttpAddress)));
+  while (cc!=NULL)

   {
   {

-    ses->addr_out = GNUNET_malloc (addrlen_out);
-    ses->addr_out_len = addrlen_out;
-    memcpy(ses->addr_out,addr_out,addrlen_out);
+    if (addr_len == cc->addrlen)
+    {
+      if (0 == memcmp(cc->addr, addr, addr_len))
+      {
+        /* connection can not be used, since it is disconnected */
+        if ((cc->recv_force_disconnect==GNUNET_NO) && (cc->send_force_disconnect==GNUNET_NO))
+          con = cc;
+        break;
+      }
+    }
+    count++;
+    cc=cc->next;

   }
   }

-  ses->plugin = plugin;
-  memcpy(&ses->partner, peer, sizeof (struct GNUNET_PeerIdentity));
-  GNUNET_CRYPTO_hash_to_enc(&ses->partner.hashPubKey,&(ses->hash));
-  ses->is_active = GNUNET_NO;
-  ses->pending_inbound_msg = GNUNET_malloc( sizeof (struct HTTP_Message));
-  ses->pending_inbound_msg->buf = GNUNET_malloc(GNUNET_SERVER_MAX_MESSAGE_SIZE);
-  ses->pending_inbound_msg->len = GNUNET_SERVER_MAX_MESSAGE_SIZE;
-  ses->pending_inbound_msg->pos = 0;
-  ses->msgtok = NULL;
-  return ses;
+  return con;

 }
 
 }
 

+

 /**
  * Callback called by MHD when a connection is terminated
  */
 /**
  * Callback called by MHD when a connection is terminated
  */

-static void requestCompletedCallback (void *cls, struct MHD_Connection * connection, void **httpSessionCache)
+static void mhd_termination_cb (void *cls, struct MHD_Connection * connection, void **httpSessionCache)

 {
 {

-  struct Session * cs;
-
-  cs = *httpSessionCache;
-  if (cs == NULL)
+  struct Session * ps = *httpSessionCache;
+  if (ps == NULL)

     return;
     return;

-    /*GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection from peer `%s' was terminated\n",GNUNET_i2s(&cs->partner));*/
-    /* session set to inactive */
-    cs->is_active = GNUNET_NO;
-    cs->is_put_in_progress = GNUNET_NO;
-}
+  struct HTTP_PeerContext * pc = ps->peercontext;

 
 

+  if (connection==ps->recv_endpoint)
+  {
+#if DEBUG_CONNECTIONS
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound connection from peer `%s' was terminated\n", ps, GNUNET_i2s(&pc->identity));
+#endif
+    ps->recv_active = GNUNET_NO;
+    ps->recv_connected = GNUNET_NO;
+    ps->recv_endpoint = NULL;
+  }
+  if (connection==ps->send_endpoint)
+  {
+
+    ps->send_active = GNUNET_NO;
+    ps->send_connected = GNUNET_NO;
+    ps->send_endpoint = NULL;
+#if DEBUG_CONNECTIONS
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound connection from peer `%s' was terminated\n", ps, GNUNET_i2s(&pc->identity));
+#endif
+  }
+
+  /* if both connections disconnected, remove session */
+  if ((ps->send_connected == GNUNET_NO) && (ps->recv_connected == GNUNET_NO))
+  {
+    remove_session(pc,ps,GNUNET_YES,GNUNET_SYSERR);
+  }
+}

 
 

-static void messageTokenizerCallback (void *cls,
-                                      void *client,
-                                      const struct GNUNET_MessageHeader *message)
+static void mhd_write_mst_cb (void *cls,
+                              void *client,
+                              const struct GNUNET_MessageHeader *message)

 {
 {

-  struct Session * cs = cls;
-  GNUNET_assert(cs != NULL);
+
+  struct Session *ps  = cls;
+  struct HTTP_PeerContext *pc = ps->peercontext;
+  GNUNET_assert(ps != NULL);
+  GNUNET_assert(pc != NULL);

 
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,

-             "Received message with type %u and size %u from `%s'\n",
+             "Connection %X: Forwarding message to transport service, type %u and size %u from `%s' (`%s')\n",
+             ps,

              ntohs(message->type),
               ntohs(message->size),
              ntohs(message->type),
               ntohs(message->size),

-             GNUNET_i2s(&(cs->partner)));
-  cs->plugin->env->receive(cs->plugin->env->cls,
-                           &cs->partner,
-                           message, 1, NULL,
-                           NULL, 0);
+             GNUNET_i2s(&(ps->peercontext)->identity),http_plugin_address_to_string(NULL,ps->addr,ps->addrlen));
+
+  pc->plugin->env->receive (ps->peercontext->plugin->env->cls,
+                           &pc->identity,
+                           message, 1, ps,
+                           ps->addr,
+                           ps->addrlen);
+}
+
+static void curl_receive_mst_cb  (void *cls,
+                                void *client,
+                                const struct GNUNET_MessageHeader *message)
+{
+  struct Session *ps  = cls;
+  struct HTTP_PeerContext *pc = ps->peercontext;
+  GNUNET_assert(ps != NULL);
+  GNUNET_assert(pc != NULL);
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Forwarding message to transport service, type %u and size %u from `%s' (`%s')\n",
+              ntohs(message->type),
+              ntohs(message->size),
+              GNUNET_i2s(&(pc->identity)),http_plugin_address_to_string(NULL,ps->addr,ps->addrlen));
+
+  pc->plugin->env->receive (pc->plugin->env->cls,
+                            &pc->identity,
+                            message, 1, ps,
+                            ps->addr,
+                            ps->addrlen);

 }
 
 }
 

+

 /**
  * Check if ip is allowed to connect.
  */
 static int
 /**
  * Check if ip is allowed to connect.
  */
 static int

-acceptPolicyCallback (void *cls,
+mhd_accept_cb (void *cls,

                       const struct sockaddr *addr, socklen_t addr_len)
 {
 #if 0
                       const struct sockaddr *addr, socklen_t addr_len)
 {
 #if 0


@@ -405,6 +546,56 @@ acceptPolicyCallback (void *cls,
   return MHD_YES;
 }
 
   return MHD_YES;
 }
 

+int mhd_send_callback (void *cls, uint64_t pos, char *buf, int max)
+{
+  int bytes_read = 0;
+
+  struct Session * ps = cls;
+  struct HTTP_PeerContext * pc;
+  struct HTTP_Message * msg;
+  int res;res=5;
+
+  GNUNET_assert (ps!=NULL);
+  pc = ps->peercontext;
+  msg = ps->pending_msgs_tail;
+  if (ps->send_force_disconnect==GNUNET_YES)
+  {
+#if DEBUG_CONNECTIONS
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound forced to disconnect\n",ps);
+#endif
+    return -1;
+  }
+
+  if (msg!=NULL)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"mhd_send_callback %X: queue msg size: %u, max %u pos %u msg->pos %u\n",ps,msg->size,max,pos,msg->pos);
+    if ((msg->size-msg->pos) <= max)
+    {
+      memcpy(buf,&msg->buf[msg->pos],(msg->size-msg->pos));
+      bytes_read = msg->size-msg->pos;
+      msg->pos+=(msg->size-msg->pos);
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"mhd_send_callback %X: complete: size %u pos %u bytes read %u \n",ps,msg->size,msg->pos,bytes_read);
+    }
+    else
+    {
+      memcpy(buf,&msg->buf[msg->pos],max);
+      msg->pos+=max;
+      bytes_read = max;
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"mhd_send_callback %X: partial: size %u pos %u bytes read %u \n",ps,msg->size,msg->pos,bytes_read);
+    }
+
+    if (msg->pos==msg->size)
+    {
+      struct GNUNET_MessageHeader * tmp = (struct GNUNET_MessageHeader *) msg->buf;
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"MHD SENT MESSAGE %u bytes msg->type %u msg->size %u\n", bytes_read, ntohs(tmp->type), ntohs(tmp->size));
+      if (NULL!=msg->transmit_cont)
+        msg->transmit_cont (msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
+      res = remove_http_message(ps,msg);
+    }
+  }
+  return bytes_read;
+}
+

 /**
  * Process GET or PUT request received via MHD.  For
  * GET, queue response that will send back our pending
 /**
  * Process GET or PUT request received via MHD.  For
  * GET, queue response that will send back our pending


@@ -413,8 +604,8 @@ acceptPolicyCallback (void *cls,
  * already exists and create a new one if not.
  */
 static int
  * already exists and create a new one if not.
  */
 static int

-accessHandlerCallback (void *cls,
-                       struct MHD_Connection *session,
+mdh_access_cb (void *cls,
+                       struct MHD_Connection *mhd_connection,

                        const char *url,
                        const char *method,
                        const char *version,
                        const char *url,
                        const char *method,
                        const char *version,


@@ -423,30 +614,51 @@ accessHandlerCallback (void *cls,
 {
   struct Plugin *plugin = cls;
   struct MHD_Response *response;
 {
   struct Plugin *plugin = cls;
   struct MHD_Response *response;

-  struct Session * cs;

   const union MHD_ConnectionInfo * conn_info;
   const union MHD_ConnectionInfo * conn_info;

+

   struct sockaddr_in  *addrin;
   struct sockaddr_in6 *addrin6;
   struct sockaddr_in  *addrin;
   struct sockaddr_in6 *addrin6;

+

   char address[INET6_ADDRSTRLEN+14];
   struct GNUNET_PeerIdentity pi_in;
   char address[INET6_ADDRSTRLEN+14];
   struct GNUNET_PeerIdentity pi_in;

-  int res = GNUNET_NO;
-  struct GNUNET_MessageHeader *cur_msg;
-  int send_error_to_client;
+  size_t id_num = 0;
+

   struct IPv4HttpAddress ipv4addr;
   struct IPv6HttpAddress ipv6addr;
 
   struct IPv4HttpAddress ipv4addr;
   struct IPv6HttpAddress ipv6addr;
 

+  struct HTTP_PeerContext *pc;
+  struct Session *ps;
+  struct Session *ps_tmp;
+
+  int res = GNUNET_NO;
+  int send_error_to_client;
+  void * addr;
+  size_t addr_len;
+

   GNUNET_assert(cls !=NULL);
   GNUNET_assert(cls !=NULL);

-  cur_msg = NULL;

   send_error_to_client = GNUNET_NO;
 
   send_error_to_client = GNUNET_NO;
 

-  if ( NULL == *httpSessionCache)
+  if (NULL == *httpSessionCache)

   {
   {

-    /* check url for peer identity */
-    res = GNUNET_CRYPTO_hash_from_string ( &url[1], &(pi_in.hashPubKey));
+    /* check url for peer identity , if invalid send HTTP 404*/
+    size_t len = strlen(&url[1]);
+    char * peer = GNUNET_malloc(104+1);
+
+    if ((len>104) && (url[104]==';'))
+    {
+        char * id = GNUNET_malloc((len-104)+1);
+        strcpy(id,&url[105]);
+        memcpy(peer,&url[1],103);
+        peer[103] = '\0';
+        id_num = strtoul ( id, NULL , 10);
+        GNUNET_free(id);
+    }
+    res = GNUNET_CRYPTO_hash_from_string (peer, &(pi_in.hashPubKey));
+    GNUNET_free(peer);

     if ( GNUNET_SYSERR == res )
     {
       response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
     if ( GNUNET_SYSERR == res )
     {
       response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);

-      res = MHD_queue_response (session, MHD_HTTP_NOT_FOUND, response);
+      res = MHD_queue_response (mhd_connection, MHD_HTTP_NOT_FOUND, response);

       MHD_destroy_response (response);
       if (res == MHD_YES)
         GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, sent HTTP 1.1/404\n");
       MHD_destroy_response (response);
       if (res == MHD_YES)
         GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, sent HTTP 1.1/404\n");


@@ -454,8 +666,28 @@ accessHandlerCallback (void *cls,
         GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, could not send error\n");
       return res;
     }
         GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, could not send error\n");
       return res;
     }

+  }
+  else
+  {
+    ps = *httpSessionCache;
+    pc = ps->peercontext;
+  }

 
 

-    conn_info = MHD_get_connection_info(session, MHD_CONNECTION_INFO_CLIENT_ADDRESS );
+  if (NULL == *httpSessionCache)
+  {
+    /* get peer context */
+    pc = GNUNET_CONTAINER_multihashmap_get (plugin->peers, &pi_in.hashPubKey);
+    /* Peer unknown */
+    if (pc==NULL)
+    {
+      pc = GNUNET_malloc(sizeof (struct HTTP_PeerContext));
+      pc->plugin = plugin;
+      pc->session_id_counter=1;
+      memcpy(&pc->identity, &pi_in, sizeof(struct GNUNET_PeerIdentity));
+      GNUNET_CONTAINER_multihashmap_put(plugin->peers, &pc->identity.hashPubKey, pc, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
+    }
+
+    conn_info = MHD_get_connection_info(mhd_connection, MHD_CONNECTION_INFO_CLIENT_ADDRESS );

     /* Incoming IPv4 connection */
     if ( AF_INET == conn_info->client_addr->sin_family)
     {
     /* Incoming IPv4 connection */
     if ( AF_INET == conn_info->client_addr->sin_family)
     {


@@ -463,160 +695,132 @@ accessHandlerCallback (void *cls,
       inet_ntop(addrin->sin_family, &(addrin->sin_addr),address,INET_ADDRSTRLEN);
       memcpy(&ipv4addr.ipv4_addr,&(addrin->sin_addr),sizeof(struct in_addr));
       ipv4addr.u_port = addrin->sin_port;
       inet_ntop(addrin->sin_family, &(addrin->sin_addr),address,INET_ADDRSTRLEN);
       memcpy(&ipv4addr.ipv4_addr,&(addrin->sin_addr),sizeof(struct in_addr));
       ipv4addr.u_port = addrin->sin_port;

+      addr = &ipv4addr;
+      addr_len = sizeof(struct IPv4HttpAddress);

     }
     /* Incoming IPv6 connection */
     if ( AF_INET6 == conn_info->client_addr->sin_family)
     {
       addrin6 = (struct sockaddr_in6 *) conn_info->client_addr;
       inet_ntop(addrin6->sin6_family, &(addrin6->sin6_addr),address,INET6_ADDRSTRLEN);
     }
     /* Incoming IPv6 connection */
     if ( AF_INET6 == conn_info->client_addr->sin_family)
     {
       addrin6 = (struct sockaddr_in6 *) conn_info->client_addr;
       inet_ntop(addrin6->sin6_family, &(addrin6->sin6_addr),address,INET6_ADDRSTRLEN);

-      memcpy(&ipv6addr.ipv6_addr,&(addrin6->sin6_addr),sizeof(struct in_addr));
+      memcpy(&ipv6addr.ipv6_addr,&(addrin6->sin6_addr),sizeof(struct in6_addr));

       ipv6addr.u6_port = addrin6->sin6_port;
       ipv6addr.u6_port = addrin6->sin6_port;

+      addr = &ipv6addr;
+      addr_len = sizeof(struct IPv6HttpAddress);

     }
     }

-    /* find existing session for address */
-    cs = GNUNET_CONTAINER_multihashmap_get (plugin->sessions, &pi_in.hashPubKey);
-    /* no existing session, create a new one*/
-    if (cs == NULL )
-    {
-      /* create new session object */
-      if ( AF_INET6 == conn_info->client_addr->sin_family)
-        cs = create_session(plugin, (char *) &ipv6addr, sizeof(struct IPv6HttpAddress),NULL, 0, &pi_in);
-      if ( AF_INET == conn_info->client_addr->sin_family)
-        cs = create_session(plugin, (char *) &ipv4addr, sizeof(struct IPv4HttpAddress),NULL, 0, &pi_in);
-
-      /* Insert session into hashmap */
-      GNUNET_CONTAINER_multihashmap_put ( plugin->sessions,
-                                          &cs->partner.hashPubKey,
-                                          cs,
-                                          GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
-
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"New Session for peer `%s' inserted\n", GNUNET_i2s(&cs->partner));
-    }

 
 

-    /* Set closure and update current session*/
-    if (*httpSessionCache == NULL)
+
+    //ps = get_Session(plugin, pc, addr, addr_len);
+    ps = NULL;
+    /* only inbound sessions here */
+
+    ps_tmp = pc->head;
+    while (ps_tmp!=NULL)

     {
     {

-      *httpSessionCache = cs;
-      /* Updating session */
-      /*
-      memcpy(cs->addr_inbound,conn_info->client_addr, sizeof(struct sockaddr_in));
-      if ( AF_INET == cs->addr_inbound->sin_family)
+      if ((ps_tmp->direction==INBOUND) && (ps_tmp->session_id == id_num) && (id_num!=0))

       {
       {

-        GNUNET_asprintf(&cs->addr_inbound_str,"%s:%u",address,ntohs(cs->addr_inbound->sin_port));
+        if ((ps_tmp->recv_force_disconnect!=GNUNET_YES) && (ps_tmp->send_force_disconnect!=GNUNET_YES))
+        ps=ps_tmp;
+        break;

       }
       }

+      ps_tmp=ps_tmp->next;
+    }

 
 

-      if ( AF_INET6 == cs->addr_inbound->sin_family)
-      {
-        GNUNET_asprintf(&cs->addr_inbound_str,"[%s]:%u",address,ntohs(cs->addr_inbound->sin_port));
-
-      }
-      */
-      if (cs->msgtok==NULL)
-        cs->msgtok = GNUNET_SERVER_mst_create (GNUNET_SERVER_MAX_MESSAGE_SIZE, &messageTokenizerCallback, cs);
+    if (ps==NULL)
+    {
+      ps = GNUNET_malloc(sizeof (struct Session));
+      ps->addr = GNUNET_malloc(addr_len);
+      memcpy(ps->addr,addr,addr_len);
+      ps->addrlen = addr_len;
+      ps->direction=INBOUND;
+      ps->pending_msgs_head = NULL;
+      ps->pending_msgs_tail = NULL;
+      ps->send_connected=GNUNET_NO;
+      ps->send_active=GNUNET_NO;
+      ps->recv_connected=GNUNET_NO;
+      ps->recv_active=GNUNET_NO;
+      ps->peercontext=pc;
+      ps->session_id =id_num;
+      ps->url = create_url (plugin, ps->addr, ps->addrlen, ps->session_id);
+      GNUNET_CONTAINER_DLL_insert(pc->head,pc->tail,ps);

     }
     }

-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Daemon has new an incoming `%s' request from peer `%s'\n",method, GNUNET_i2s(&cs->partner));
-  }
-  else
-  {
-    cs = *httpSessionCache;
+
+    *httpSessionCache = ps;
+    if (ps->msgtok==NULL)
+      ps->msgtok = GNUNET_SERVER_mst_create (&mhd_write_mst_cb, ps);
+
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: HTTP Daemon has new an incoming `%s' request from peer `%s' (`%s')\n",
+                ps,
+                method,
+                GNUNET_i2s(&pc->identity),
+                http_plugin_address_to_string(NULL, ps->addr, ps->addrlen));

   }
   }

+

   /* Is it a PUT or a GET request */
   /* Is it a PUT or a GET request */

-  if ( 0 == strcmp (MHD_HTTP_METHOD_PUT, method) )
+  if (0 == strcmp (MHD_HTTP_METHOD_PUT, method))

   {
   {

-    /* New  */
-    if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_NO))
+    if (ps->recv_force_disconnect)

     {
     {

-      if (cs->pending_inbound_msg->pos !=0 )
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                    _("Incoming message from peer `%s', while existing message with %u bytes was not forwarded to transport'\n"),
-                    GNUNET_i2s(&cs->partner), cs->pending_inbound_msg->pos);
-        cs->pending_inbound_msg->pos = 0;
-      }
-      /* not yet ready */
-      cs->is_put_in_progress = GNUNET_YES;
-      cs->is_bad_request = GNUNET_NO;
-      cs->is_active = GNUNET_YES;
-      return MHD_YES;
+#if DEBUG_CONNECTIONS
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound connection was forced to disconnect\n",ps);
+#endif
+      ps->recv_active = GNUNET_NO;
+      return MHD_NO;

     }
     }

-
-    if ((*upload_data_size > 0) && (cs->is_bad_request != GNUNET_YES))
+    if ((*upload_data_size == 0) && (ps->recv_active==GNUNET_NO))

     {
     {

-      if ((*upload_data_size + cs->pending_inbound_msg->pos < cs->pending_inbound_msg->len) && (*upload_data_size + cs->pending_inbound_msg->pos <= GNUNET_SERVER_MAX_MESSAGE_SIZE))
-      {
-        /* copy uploaded data to buffer */
-
-        res = GNUNET_SERVER_mst_receive(cs->msgtok, cs, upload_data,*upload_data_size, GNUNET_YES, GNUNET_NO);
-        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"%u bytes forwarded to MST: result: %u\n",*upload_data_size, res);
-        cs->pending_inbound_msg->pos += *upload_data_size;
-        *upload_data_size = 0;
-        return MHD_YES;
-      }
-      else
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"%u bytes not added to message of %u bytes, message to big\n",*upload_data_size, cs->pending_inbound_msg->pos);
-        cs->is_bad_request = GNUNET_YES;
-        /* (*upload_data_size) bytes not processed */
-        return MHD_YES;
-      }
+      ps->recv_endpoint = mhd_connection;
+      ps->recv_connected = GNUNET_YES;
+      ps->recv_active = GNUNET_YES;
+#if DEBUG_CONNECTIONS
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound PUT connection connected\n",ps);
+#endif
+      return MHD_YES;

     }
 
     }
 

-    if ((cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_YES))
+    /* Transmission of all data complete */
+    if ((*upload_data_size == 0) && (ps->recv_active == GNUNET_YES))

     {
     {

-      *upload_data_size = 0;

       response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
       response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);

-      res = MHD_queue_response (session, MHD_HTTP_REQUEST_ENTITY_TOO_LARGE, response);
-      if (res == MHD_YES)
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 413 Request Entity Too Large as PUT Response\n");
-        cs->is_bad_request = GNUNET_NO;
-        cs->is_put_in_progress =GNUNET_NO;
-        cs->pending_inbound_msg->pos = 0;
-      }
+      res = MHD_queue_response (mhd_connection, MHD_HTTP_OK, response);
+#if DEBUG_CONNECTIONS
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Sent HTTP/1.1: 200 OK as PUT Response\n",ps);
+#endif

       MHD_destroy_response (response);
       MHD_destroy_response (response);

+      ps->recv_active=GNUNET_NO;

       return MHD_YES;
     }
 
       return MHD_YES;
     }
 

-    /* Transmission of all data complete */
-    if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_NO))
+    /* Recieving data */
+    if ((*upload_data_size > 0) && (ps->recv_active == GNUNET_YES))

     {
     {

-      send_error_to_client = GNUNET_YES;
-      cur_msg = NULL;
-      if (cs->pending_inbound_msg->pos >= sizeof (struct GNUNET_MessageHeader))
-      {
-        cur_msg = (struct GNUNET_MessageHeader *) cs->pending_inbound_msg->buf;
-        //res = GNUNET_SERVER_mst_receive(cs->msgtok, cs, cs->pending_inbound_msg->buf,cs->pending_inbound_msg->pos, GNUNET_YES, GNUNET_NO);
-        res = GNUNET_OK;
-        if ((res != GNUNET_SYSERR) && (res != GNUNET_NO))
-          send_error_to_client = GNUNET_NO;
-      }
-      if (send_error_to_client == GNUNET_NO)
-      {
-        response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
-        res = MHD_queue_response (session, MHD_HTTP_OK, response);
-        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 200 OK as PUT Response\n",HTTP_PUT_RESPONSE, strlen (HTTP_PUT_RESPONSE), res );
-        MHD_destroy_response (response);
-      }
-      else
-      {
-        response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
-        res = MHD_queue_response (session, MHD_HTTP_BAD_REQUEST, response);
-        MHD_destroy_response (response);
-        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 400 BAD REQUEST as PUT Response\n");
-      }
-      cs->is_put_in_progress = GNUNET_NO;
-      cs->is_bad_request = GNUNET_NO;
-      cs->pending_inbound_msg->pos = 0;
-      return res;
+      res = GNUNET_SERVER_mst_receive(ps->msgtok, ps, upload_data,*upload_data_size, GNUNET_NO, GNUNET_NO);
+      (*upload_data_size) = 0;
+      return MHD_YES;

     }
     }

+    else
+      return MHD_NO;

   }
   if ( 0 == strcmp (MHD_HTTP_METHOD_GET, method) )
   {
   }
   if ( 0 == strcmp (MHD_HTTP_METHOD_GET, method) )
   {

-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Got GET Request\n");
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"URL: `%s'\n",url);
-    response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
-    res = MHD_queue_response (session, MHD_HTTP_OK, response);
+    if (ps->send_force_disconnect)
+    {
+#if DEBUG_CONNECTIONS
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound connection was  forced to disconnect\n",ps);
+#endif
+      ps->send_active = GNUNET_NO;
+      return MHD_NO;
+    }
+    ps->send_connected = GNUNET_YES;
+    ps->send_active = GNUNET_YES;
+    ps->send_endpoint = mhd_connection;
+#if DEBUG_CONNECTIONS
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound GET connection connected\n",ps);
+#endif
+    response = MHD_create_response_from_callback(-1,32 * 1024, &mhd_send_callback, ps, NULL);
+    res = MHD_queue_response (mhd_connection, MHD_HTTP_OK, response);

     MHD_destroy_response (response);
     MHD_destroy_response (response);

-    return res;
+    return MHD_YES;

   }
   return MHD_NO;
 }
   }
   return MHD_NO;
 }


@@ -626,19 +830,19 @@ accessHandlerCallback (void *cls,
  * Call MHD to process pending ipv4 requests and then go back
  * and schedule the next run.
  */
  * Call MHD to process pending ipv4 requests and then go back
  * and schedule the next run.
  */

-static void http_daemon_v4_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+static void http_server_daemon_v4_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);

 /**
  * Call MHD to process pending ipv6 requests and then go back
  * and schedule the next run.
  */
 /**
  * Call MHD to process pending ipv6 requests and then go back
  * and schedule the next run.
  */

-static void http_daemon_v6_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+static void http_server_daemon_v6_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);

 
 /**
  * Function that queries MHD's select sets and
  * starts the task waiting for them.
  */
 static GNUNET_SCHEDULER_TaskIdentifier
 
 /**
  * Function that queries MHD's select sets and
  * starts the task waiting for them.
  */
 static GNUNET_SCHEDULER_TaskIdentifier

-http_daemon_prepare (void * cls, struct MHD_Daemon *daemon_handle)
+http_server_daemon_prepare (void * cls, struct MHD_Daemon *daemon_handle)

 {
   struct Plugin *plugin = cls;
   GNUNET_SCHEDULER_TaskIdentifier ret;
 {
   struct Plugin *plugin = cls;
   GNUNET_SCHEDULER_TaskIdentifier ret;


@@ -654,6 +858,7 @@ http_daemon_prepare (void * cls, struct MHD_Daemon *daemon_handle)
   struct GNUNET_TIME_Relative tv;
 
   GNUNET_assert(cls !=NULL);
   struct GNUNET_TIME_Relative tv;
 
   GNUNET_assert(cls !=NULL);

+  ret = GNUNET_SCHEDULER_NO_TASK;

   FD_ZERO(&rs);
   FD_ZERO(&ws);
   FD_ZERO(&es);
   FD_ZERO(&rs);
   FD_ZERO(&ws);
   FD_ZERO(&es);


@@ -675,7 +880,7 @@ http_daemon_prepare (void * cls, struct MHD_Daemon *daemon_handle)
   GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max);
   GNUNET_NETWORK_fdset_copy_native (wws, &ws, max);
   GNUNET_NETWORK_fdset_copy_native (wes, &es, max);
   GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max);
   GNUNET_NETWORK_fdset_copy_native (wws, &ws, max);
   GNUNET_NETWORK_fdset_copy_native (wes, &es, max);

-  if (daemon_handle == plugin->http_daemon_v4)
+  if (daemon_handle == plugin->http_server_daemon_v4)

   {
     ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
                                        GNUNET_SCHEDULER_PRIORITY_DEFAULT,
   {
     ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
                                        GNUNET_SCHEDULER_PRIORITY_DEFAULT,


@@ -683,10 +888,10 @@ http_daemon_prepare (void * cls, struct MHD_Daemon *daemon_handle)
                                        tv,
                                        wrs,
                                        wws,
                                        tv,
                                        wrs,
                                        wws,

-                                       &http_daemon_v4_run,
+                                       &http_server_daemon_v4_run,

                                        plugin);
   }
                                        plugin);
   }

-  if (daemon_handle == plugin->http_daemon_v6)
+  if (daemon_handle == plugin->http_server_daemon_v6)

   {
     ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
                                        GNUNET_SCHEDULER_PRIORITY_DEFAULT,
   {
     ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
                                        GNUNET_SCHEDULER_PRIORITY_DEFAULT,


@@ -694,7 +899,7 @@ http_daemon_prepare (void * cls, struct MHD_Daemon *daemon_handle)
                                        tv,
                                        wrs,
                                        wws,
                                        tv,
                                        wrs,
                                        wws,

-                                       &http_daemon_v6_run,
+                                       &http_server_daemon_v6_run,

                                        plugin);
   }
   GNUNET_NETWORK_fdset_destroy (wrs);
                                        plugin);
   }
   GNUNET_NETWORK_fdset_destroy (wrs);


@@ -707,20 +912,20 @@ http_daemon_prepare (void * cls, struct MHD_Daemon *daemon_handle)
  * Call MHD to process pending requests and then go back
  * and schedule the next run.
  */
  * Call MHD to process pending requests and then go back
  * and schedule the next run.
  */

-static void http_daemon_v4_run (void *cls,
+static void http_server_daemon_v4_run (void *cls,

                              const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
   struct Plugin *plugin = cls;
 
   GNUNET_assert(cls !=NULL);
                              const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
   struct Plugin *plugin = cls;
 
   GNUNET_assert(cls !=NULL);

-  if (plugin->http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
-    plugin->http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
+  if (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
+    plugin->http_server_task_v4 = GNUNET_SCHEDULER_NO_TASK;

 
   if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
     return;
 
 
   if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
     return;
 

-  GNUNET_assert (MHD_YES == MHD_run (plugin->http_daemon_v4));
-  plugin->http_task_v4 = http_daemon_prepare (plugin, plugin->http_daemon_v4);
+  GNUNET_assert (MHD_YES == MHD_run (plugin->http_server_daemon_v4));
+  plugin->http_server_task_v4 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v4);

   return;
 }
 
   return;
 }
 


@@ -729,44 +934,113 @@ static void http_daemon_v4_run (void *cls,
  * Call MHD to process pending requests and then go back
  * and schedule the next run.
  */
  * Call MHD to process pending requests and then go back
  * and schedule the next run.
  */

-static void http_daemon_v6_run (void *cls,
+static void http_server_daemon_v6_run (void *cls,

                              const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
   struct Plugin *plugin = cls;
 
   GNUNET_assert(cls !=NULL);
                              const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
   struct Plugin *plugin = cls;
 
   GNUNET_assert(cls !=NULL);

-  if (plugin->http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
-    plugin->http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
+  if (plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)
+    plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;

 
   if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
     return;
 
 
   if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
     return;
 

-  GNUNET_assert (MHD_YES == MHD_run (plugin->http_daemon_v6));
-  plugin->http_task_v6 = http_daemon_prepare (plugin, plugin->http_daemon_v6);
+  GNUNET_assert (MHD_YES == MHD_run (plugin->http_server_daemon_v6));
+  plugin->http_server_task_v6 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v6);

   return;
 }
 
 /**
   return;
 }
 
 /**

- * Removes a message from the linked list of messages
- * @param ses session to remove message from
- * @param msg message to remove
- * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
+ * Function setting up curl handle and selecting message to send
+ * @param cls plugin
+ * @param ses session to send data to
+ * @param con connection
+ * @return bytes sent to peer

  */
  */

+static ssize_t send_check_connections (void *cls, struct Session *ps);

 
 

-static int remove_http_message(struct Session * ses, struct HTTP_Message * msg)
+static size_t curl_get_header_function( void *ptr, size_t size, size_t nmemb, void *stream)

 {
 {

-  GNUNET_free (msg->buf);
-  GNUNET_free (msg->dest_url);
+  struct Session * ps = stream;

 
 

-  GNUNET_CONTAINER_DLL_remove(ses->pending_outbound_msg_head,ses->pending_outbound_msg_tail,msg);
-  return GNUNET_OK;
-}
+  char * tmp;
+  size_t len = size * nmemb;
+  long http_result = 0;
+  int res;
+  /* Getting last http result code */
+  if (ps->recv_connected==GNUNET_NO)
+  {
+    GNUNET_assert(NULL!=ps);
+    res = curl_easy_getinfo(ps->recv_endpoint, CURLINFO_RESPONSE_CODE, &http_result);
+    if (CURLE_OK == res)
+    {
+      if (http_result == 200)
+      {
+        ps->recv_connected = GNUNET_YES;
+        ps->recv_active = GNUNET_YES;
+#if DEBUG_CONNECTIONS
+        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: connected to recieve data\n",ps);
+#endif
+        // Calling send_check_connections again since receive is established
+        send_check_connections (ps->peercontext->plugin, ps);
+      }
+    }
+  }
+
+  tmp = NULL;
+  if ((size * nmemb) < SIZE_MAX)
+    tmp = GNUNET_malloc (len+1);
+
+  if ((tmp != NULL) && (len > 0))
+  {
+    memcpy(tmp,ptr,len);
+    if (len>=2)
+    {
+      if (tmp[len-2] == 13)
+        tmp[len-2]= '\0';
+    }
+#if DEBUG_HTTP
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Header: `%s' %u \n",tmp, http_result);
+#endif
+  }
+  if (NULL != tmp)
+    GNUNET_free (tmp);

 
 

+  return size * nmemb;
+}

 
 

-static size_t header_function( void *ptr, size_t size, size_t nmemb, void *stream)
+static size_t curl_put_header_function( void *ptr, size_t size, size_t nmemb, void *stream)

 {
 {

+  struct Session * ps = stream;
+

   char * tmp;
   size_t len = size * nmemb;
   char * tmp;
   size_t len = size * nmemb;

+  long http_result = 0;
+  int res;
+
+  /* Getting last http result code */
+  GNUNET_assert(NULL!=ps);
+  res = curl_easy_getinfo(ps->send_endpoint, CURLINFO_RESPONSE_CODE, &http_result);
+  if (CURLE_OK == res)
+  {
+    if ((http_result == 100) && (ps->send_connected==GNUNET_NO))
+    {
+      ps->send_connected = GNUNET_YES;
+      ps->send_active = GNUNET_YES;
+#if DEBUG_CONNECTIONS
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: connected to send data\n",ps);
+#endif
+    }
+    if ((http_result == 200) && (ps->send_connected==GNUNET_YES))
+    {
+      ps->send_connected = GNUNET_NO;
+      ps->send_active = GNUNET_NO;
+#if DEBUG_CONNECTIONS
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: sending disconnected\n",ps);
+#endif
+    }
+  }

 
   tmp = NULL;
   if ((size * nmemb) < SIZE_MAX)
 
   tmp = NULL;
   if ((size * nmemb) < SIZE_MAX)


@@ -780,8 +1054,8 @@ static size_t header_function( void *ptr, size_t size, size_t nmemb, void *strea
       if (tmp[len-2] == 13)
         tmp[len-2]= '\0';
     }
       if (tmp[len-2] == 13)
         tmp[len-2]= '\0';
     }

-#if DEBUG_CURL
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Header: `%s'\n",tmp);
+#if DEBUG_HTTP
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Header: `%s' %u \n",tmp, http_result);

 #endif
   }
   if (NULL != tmp)
 #endif
   }
   if (NULL != tmp)


@@ -799,20 +1073,30 @@ static size_t header_function( void *ptr, size_t size, size_t nmemb, void *strea
  * @param ptr source pointer, passed to the libcurl handle
  * @return bytes written to stream
  */
  * @param ptr source pointer, passed to the libcurl handle
  * @return bytes written to stream
  */

-static size_t send_read_callback(void *stream, size_t size, size_t nmemb, void *ptr)
+static size_t curl_send_cb(void *stream, size_t size, size_t nmemb, void *ptr)

 {
 {

-  struct Session * ses = ptr;
-  struct HTTP_Message * msg = ses->pending_outbound_msg_tail;
+  struct Session * ps = ptr;
+  struct HTTP_Message * msg = ps->pending_msgs_tail;

   size_t bytes_sent;
   size_t len;
 
   size_t bytes_sent;
   size_t len;
 

+  if (ps->pending_msgs_tail == NULL)
+  {
+#if DEBUG_CONNECTIONS
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: No Message to send, pausing connection\n",ps);
+#endif
+    ps->send_active = GNUNET_NO;
+    return CURL_READFUNC_PAUSE;
+  }
+
+  msg = ps->pending_msgs_tail;

   /* data to send */
   /* data to send */

-  if (( msg->pos < msg->len))
+  if (msg->pos < msg->size)

   {
     /* data fit in buffer */
   {
     /* data fit in buffer */

-    if ((msg->len - msg->pos) <= (size * nmemb))
+    if ((msg->size - msg->pos) <= (size * nmemb))

     {
     {

-      len = (msg->len - msg->pos);
+      len = (msg->size - msg->pos);

       memcpy(stream, &msg->buf[msg->pos], len);
       msg->pos += len;
       bytes_sent = len;
       memcpy(stream, &msg->buf[msg->pos], len);
       msg->pos += len;
       bytes_sent = len;


@@ -830,6 +1114,17 @@ static size_t send_read_callback(void *stream, size_t size, size_t nmemb, void *
   {
     bytes_sent = 0;
   }
   {
     bytes_sent = 0;
   }

+
+  if ( msg->pos == msg->size)
+  {
+#if DEBUG_CONNECTIONS
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Message with %u bytes sent, removing message from queue \n",ps, msg->pos);
+#endif
+    /* Calling transmit continuation  */
+    if (( NULL != ps->pending_msgs_tail) && (NULL != ps->pending_msgs_tail->transmit_cont))
+      msg->transmit_cont (ps->pending_msgs_tail->transmit_cont_cls,&(ps->peercontext)->identity,GNUNET_OK);
+    remove_http_message(ps, msg);
+  }

   return bytes_sent;
 }
 
   return bytes_sent;
 }
 


@@ -842,80 +1137,162 @@ static size_t send_read_callback(void *stream, size_t size, size_t nmemb, void *
 * @param ptr destination pointer, passed to the libcurl handle
 * @return bytes read from stream
 */
 * @param ptr destination pointer, passed to the libcurl handle
 * @return bytes read from stream
 */

-static size_t send_write_callback( void *stream, size_t size, size_t nmemb, void *ptr)
+static size_t curl_receive_cb( void *stream, size_t size, size_t nmemb, void *ptr)

 {
 {

-  char * data = NULL;
+  struct Session * ps = ptr;
+#if DEBUG_CONNECTIONS
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: %u bytes received\n",ps, size*nmemb);
+#endif

 
 

-  if ((size * nmemb) < SIZE_MAX)
-    data = GNUNET_malloc(size*nmemb +1);
-  if (data != NULL)
-  {
-    memcpy( data, stream, size*nmemb);
-    data[size*nmemb] = '\0';
-    free (data);
-  }
+  struct GNUNET_MessageHeader * msg = stream;
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: %u bytes msg->type %u msg->size %u\n",ps, size*nmemb, ntohs(msg->type), ntohs(msg->size));
+
+  // GNUNET_SERVER_mst_receive(ps->msgtok, ps, stream, size*nmemb, GNUNET_NO, GNUNET_NO);

   return (size * nmemb);
 
 }
 
 /**
  * Function setting up file descriptors and scheduling task to run
   return (size * nmemb);
 
 }
 
 /**
  * Function setting up file descriptors and scheduling task to run

+ * @param cls closure

  * @param ses session to send data to
  * @return bytes sent to peer
  */
  * @param ses session to send data to
  * @return bytes sent to peer
  */

-static size_t send_prepare(void *cls, struct Session* ses );
+static size_t send_schedule(void *cls, struct Session* ses );
+
+

 
 /**
  * Function setting up curl handle and selecting message to send
 
 /**
  * Function setting up curl handle and selecting message to send

+ * @param cls plugin

  * @param ses session to send data to
  * @param ses session to send data to

+ * @param con connection

  * @return bytes sent to peer
  */
  * @return bytes sent to peer
  */

-static ssize_t send_select_init (void *cls, struct Session* ses )
+static ssize_t send_check_connections (void *cls, struct Session *ps)

 {
   struct Plugin *plugin = cls;
   int bytes_sent = 0;
   CURLMcode mret;
   struct HTTP_Message * msg;
 {
   struct Plugin *plugin = cls;
   int bytes_sent = 0;
   CURLMcode mret;
   struct HTTP_Message * msg;

+  struct GNUNET_TIME_Relative timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;

 
   GNUNET_assert(cls !=NULL);
 
   GNUNET_assert(cls !=NULL);

-  if ( NULL == ses->curl_handle)
-    ses->curl_handle = curl_easy_init();
-  if( NULL == ses->curl_handle)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Getting cURL handle failed\n");
-    return -1;
-  }
-  GNUNET_assert (NULL != ses->pending_outbound_msg_tail);
-  msg = ses->pending_outbound_msg_tail;

 
 

+  if (ps->direction == OUTBOUND)
+  {
+    /* RECV DIRECTION */
+    /* Check if session is connected to receive data, otherwise connect to peer */
+    if (ps->recv_connected == GNUNET_NO)
+    {
+        if (ps->recv_endpoint == NULL)
+        {
+          ps->recv_endpoint = curl_easy_init();

 #if DEBUG_CURL
 #if DEBUG_CURL

-  curl_easy_setopt(ses->curl_handle, CURLOPT_VERBOSE, 1L);
+        curl_easy_setopt(ps->recv_endpoint, CURLOPT_VERBOSE, 1L);

 #endif
 #endif

-  curl_easy_setopt(ses->curl_handle, CURLOPT_URL, msg->dest_url);
-  curl_easy_setopt(ses->curl_handle, CURLOPT_PUT, 1L);
-  curl_easy_setopt(ses->curl_handle, CURLOPT_HEADERFUNCTION, &header_function);
-  curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEHEADER, ses);
-  curl_easy_setopt(ses->curl_handle, CURLOPT_READFUNCTION, send_read_callback);
-  curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
-  curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEFUNCTION, send_write_callback);
-  curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
-  curl_easy_setopt(ses->curl_handle, CURLOPT_INFILESIZE_LARGE, (curl_off_t) msg->len);
-  curl_easy_setopt(ses->curl_handle, CURLOPT_TIMEOUT, GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT);
-  GNUNET_assert (CURLE_OK == curl_easy_setopt(ses->curl_handle, CURLOPT_PRIVATE, ses));
-  curl_easy_setopt(ses->curl_handle, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
-  curl_easy_setopt(ses->curl_handle, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
-
-  mret = curl_multi_add_handle(plugin->multi_handle, ses->curl_handle);
-  if (mret != CURLM_OK)
+        curl_easy_setopt(ps->recv_endpoint, CURLOPT_URL, ps->url);
+        curl_easy_setopt(ps->recv_endpoint, CURLOPT_HEADERFUNCTION, &curl_get_header_function);
+        curl_easy_setopt(ps->recv_endpoint, CURLOPT_WRITEHEADER, ps);
+        curl_easy_setopt(ps->recv_endpoint, CURLOPT_READFUNCTION, curl_send_cb);
+        curl_easy_setopt(ps->recv_endpoint, CURLOPT_READDATA, ps);
+        curl_easy_setopt(ps->recv_endpoint, CURLOPT_WRITEFUNCTION, curl_receive_cb);
+        curl_easy_setopt(ps->recv_endpoint, CURLOPT_WRITEDATA, ps);
+        curl_easy_setopt(ps->recv_endpoint, CURLOPT_TIMEOUT, (long) timeout.value);
+        curl_easy_setopt(ps->recv_endpoint, CURLOPT_PRIVATE, ps);
+        curl_easy_setopt(ps->recv_endpoint, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
+        curl_easy_setopt(ps->recv_endpoint, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
+
+        mret = curl_multi_add_handle(plugin->multi_handle, ps->recv_endpoint);
+        if (mret != CURLM_OK)
+        {
+          GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                      _("%s failed at %s:%d: `%s'\n"),
+                      "curl_multi_add_handle", __FILE__, __LINE__,
+                      curl_multi_strerror (mret));
+          return -1;
+        }
+        bytes_sent = send_schedule (plugin, NULL);
+#if DEBUG_CONNECTIONS
+        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound not connected, initiating connection\n",ps);
+#endif
+      }
+    }
+
+    /* waiting for receive direction */
+    if (ps->recv_connected==GNUNET_NO)
+      return 0;
+
+    /* SEND DIRECTION */
+    /* Check if session is connected to send data, otherwise connect to peer */
+    if ((ps->send_connected == GNUNET_YES) && (ps->send_endpoint!= NULL))
+    {
+      if (ps->send_active == GNUNET_YES)
+      {
+#if DEBUG_CONNECTIONS
+        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound active, enqueueing message\n",ps);
+#endif
+        return bytes_sent;
+      }
+      if (ps->send_active == GNUNET_NO)
+      {
+#if DEBUG_CONNECTIONS
+        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound paused, unpausing existing connection and enqueueing message\n",ps);
+#endif
+        curl_easy_pause(ps->send_endpoint,CURLPAUSE_CONT);
+        ps->send_active=GNUNET_YES;
+        return bytes_sent;
+      }
+    }
+    /* not connected, initiate connection */
+    if ((ps->send_connected==GNUNET_NO) && (NULL == ps->send_endpoint))
+      ps->send_endpoint = curl_easy_init();
+    GNUNET_assert (ps->send_endpoint != NULL);
+    GNUNET_assert (NULL != ps->pending_msgs_tail);
+#if DEBUG_CONNECTIONS
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound not connected, initiating connection\n",ps);
+#endif
+    ps->send_active = GNUNET_NO;
+    msg = ps->pending_msgs_tail;
+
+  #if DEBUG_CURL
+    curl_easy_setopt(ps->send_endpoint, CURLOPT_VERBOSE, 1L);
+  #endif
+    curl_easy_setopt(ps->send_endpoint, CURLOPT_URL, ps->url);
+    curl_easy_setopt(ps->send_endpoint, CURLOPT_PUT, 1L);
+    curl_easy_setopt(ps->send_endpoint, CURLOPT_HEADERFUNCTION, &curl_put_header_function);
+    curl_easy_setopt(ps->send_endpoint, CURLOPT_WRITEHEADER, ps);
+    curl_easy_setopt(ps->send_endpoint, CURLOPT_READFUNCTION, curl_send_cb);
+    curl_easy_setopt(ps->send_endpoint, CURLOPT_READDATA, ps);
+    curl_easy_setopt(ps->send_endpoint, CURLOPT_WRITEFUNCTION, curl_receive_cb);
+    curl_easy_setopt(ps->send_endpoint, CURLOPT_READDATA, ps);
+    curl_easy_setopt(ps->send_endpoint, CURLOPT_TIMEOUT, (long) timeout.value);
+    curl_easy_setopt(ps->send_endpoint, CURLOPT_PRIVATE, ps);
+    curl_easy_setopt(ps->send_endpoint, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
+    curl_easy_setopt(ps->send_endpoint, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
+
+    mret = curl_multi_add_handle(plugin->multi_handle, ps->send_endpoint);
+    if (mret != CURLM_OK)
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  _("%s failed at %s:%d: `%s'\n"),
+                  "curl_multi_add_handle", __FILE__, __LINE__,
+                  curl_multi_strerror (mret));
+      return -1;
+    }
+    bytes_sent = send_schedule (plugin, NULL);
+    return bytes_sent;
+  }
+  if (ps->direction == INBOUND)

   {
   {

-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                _("%s failed at %s:%d: `%s'\n"),
-                "curl_multi_add_handle", __FILE__, __LINE__,
-                curl_multi_strerror (mret));
-    return -1;
+    GNUNET_assert (NULL != ps->pending_msgs_tail);
+    bytes_sent = 0;
+    msg = ps->pending_msgs_tail;
+    if ((ps->recv_connected==GNUNET_YES) && (ps->send_connected==GNUNET_YES))
+        bytes_sent = msg->size;
+    return bytes_sent;

   }
   }

-  bytes_sent = send_prepare (plugin, ses );
-  return bytes_sent;
+  return 0;

 }
 
 static void send_execute (void *cls,
 }
 
 static void send_execute (void *cls,


@@ -926,11 +1303,13 @@ static void send_execute (void *cls,
   int running;
   struct CURLMsg *msg;
   CURLMcode mret;
   int running;
   struct CURLMsg *msg;
   CURLMcode mret;

-  struct Session * cs = NULL;
+  struct Session *ps = NULL;
+  struct HTTP_PeerContext *pc = NULL;
+  struct HTTP_Message * cur_msg = NULL;

   long http_result;
 
   GNUNET_assert(cls !=NULL);
   long http_result;
 
   GNUNET_assert(cls !=NULL);

-  plugin->http_task_send = GNUNET_SCHEDULER_NO_TASK;
+  plugin->http_server_task_send = GNUNET_SCHEDULER_NO_TASK;

   if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
     return;
 
   if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
     return;
 


@@ -944,14 +1323,14 @@ static void send_execute (void *cls,
             {
 
               msg = curl_multi_info_read (plugin->multi_handle, &running);
             {
 
               msg = curl_multi_info_read (plugin->multi_handle, &running);

-              GNUNET_break (msg != NULL);

               if (msg == NULL)
                 break;
               /* get session for affected curl handle */
               GNUNET_assert ( msg->easy_handle != NULL );
               if (msg == NULL)
                 break;
               /* get session for affected curl handle */
               GNUNET_assert ( msg->easy_handle != NULL );

-              curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &cs);
-              GNUNET_assert ( cs != NULL );
-              GNUNET_assert ( cs->pending_outbound_msg_tail != NULL );
+              curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, (char *) &ps);
+              GNUNET_assert ( ps != NULL );
+              pc = ps->peercontext;
+              GNUNET_assert ( pc != NULL );

               switch (msg->msg)
                 {
 
               switch (msg->msg)
                 {
 


@@ -959,48 +1338,98 @@ static void send_execute (void *cls,
                   if ( (msg->data.result != CURLE_OK) &&
                        (msg->data.result != CURLE_GOT_NOTHING) )
                   {
                   if ( (msg->data.result != CURLE_OK) &&
                        (msg->data.result != CURLE_GOT_NOTHING) )
                   {

-                    GNUNET_log(GNUNET_ERROR_TYPE_INFO,
-                               _("%s failed for `%s' at %s:%d: `%s'\n"),
-                               "curl_multi_perform",
-                               GNUNET_i2s(&cs->partner),
-                               __FILE__,
-                               __LINE__,
-                               curl_easy_strerror (msg->data.result));

                     /* sending msg failed*/
                     /* sending msg failed*/

-                    if (( NULL != cs->pending_outbound_msg_tail) && ( NULL != cs->pending_outbound_msg_tail->transmit_cont))
-                      cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_SYSERR);
+                    if (msg->easy_handle == ps->send_endpoint)
+                    {
+#if DEBUG_CONNECTIONS
+                      GNUNET_log(GNUNET_ERROR_TYPE_INFO,
+                                 _("Connection %X: HTTP PUT to peer `%s' (`%s') failed: `%s' `%s'\n"),
+                                 ps,
+                                 GNUNET_i2s(&pc->identity),
+                                 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
+                                 "curl_multi_perform",
+                                 curl_easy_strerror (msg->data.result));
+#endif
+                      ps->send_connected = GNUNET_NO;
+                      ps->send_active = GNUNET_NO;
+                      curl_multi_remove_handle(plugin->multi_handle,msg->easy_handle);
+                      curl_easy_cleanup(ps->send_endpoint);
+                      ps->send_endpoint=NULL;
+                      cur_msg = ps->pending_msgs_tail;
+                      if (( NULL != cur_msg) && ( NULL != cur_msg->transmit_cont))
+                        cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_SYSERR);
+                    }
+                    /* GET connection failed */
+                    if (msg->easy_handle == ps->recv_endpoint)
+                    {
+#if DEBUG_CONNECTIONS
+                      GNUNET_log(GNUNET_ERROR_TYPE_INFO,
+                           _("Connection %X: HTTP GET to peer `%s' (`%s') failed: `%s' `%s'\n"),
+                           ps,
+                           GNUNET_i2s(&pc->identity),
+                           http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
+                           "curl_multi_perform",
+                           curl_easy_strerror (msg->data.result));
+#endif
+                      ps->recv_connected = GNUNET_NO;
+                      ps->recv_active = GNUNET_NO;
+                      curl_multi_remove_handle(plugin->multi_handle,msg->easy_handle);
+                      curl_easy_cleanup(ps->recv_endpoint);
+                      ps->recv_endpoint=NULL;
+                    }

                   }
                   else
                   {
                   }
                   else
                   {

-                    GNUNET_assert (CURLE_OK == curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &http_result));
-                    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                                "Send to peer `%s' completed with code %u\n", GNUNET_i2s(&cs->partner), http_result );
-
-                    curl_easy_cleanup(cs->curl_handle);
-                    cs->curl_handle=NULL;
-
-                    /* Calling transmit continuation  */
-                    if (( NULL != cs->pending_outbound_msg_tail) && (NULL != cs->pending_outbound_msg_tail->transmit_cont))
+                    if (msg->easy_handle == ps->send_endpoint)

                     {
                     {

-                      /* HTTP 1xx : Last message before here was informational */
-                      if ((http_result >=100) && (http_result < 200))
-                        cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_OK);
-                      /* HTTP 2xx: successful operations */
-                      if ((http_result >=200) && (http_result < 300))
-                        cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_OK);
-                      /* HTTP 3xx..5xx: error */
-                      if ((http_result >=300) && (http_result < 600))
-                        cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_SYSERR);
+                      GNUNET_assert (CURLE_OK == curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &http_result));
+#if DEBUG_CONNECTIONS
+                      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                                  "Connection %X: HTTP PUT connection to peer `%s' (`%s') was closed with HTTP code %u\n",
+                                   ps,
+                                   GNUNET_i2s(&pc->identity),
+                                   http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
+                                   http_result);
+#endif
+                      /* Calling transmit continuation  */
+                      cur_msg = ps->pending_msgs_tail;
+                      if (( NULL != cur_msg) && (NULL != cur_msg->transmit_cont))
+                      {
+                        /* HTTP 1xx : Last message before here was informational */
+                        if ((http_result >=100) && (http_result < 200))
+                          cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
+                        /* HTTP 2xx: successful operations */
+                        if ((http_result >=200) && (http_result < 300))
+                          cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
+                        /* HTTP 3xx..5xx: error */
+                        if ((http_result >=300) && (http_result < 600))
+                          cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_SYSERR);
+                      }
+                      ps->send_connected = GNUNET_NO;
+                      ps->send_active = GNUNET_NO;
+                      curl_multi_remove_handle(plugin->multi_handle,msg->easy_handle);
+                      curl_easy_cleanup(ps->send_endpoint);
+                      ps->send_endpoint =NULL;
+                    }
+                    if (msg->easy_handle == ps->recv_endpoint)
+                    {
+#if DEBUG_CONNECTIONS
+                      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                                  "Connection %X: HTTP GET connection to peer `%s' (`%s') was closed with HTTP code %u\n",
+                                   ps,
+                                   GNUNET_i2s(&pc->identity),
+                                   http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
+                                   http_result);
+#endif
+                      ps->recv_connected = GNUNET_NO;
+                      ps->recv_active = GNUNET_NO;
+                      curl_multi_remove_handle(plugin->multi_handle,msg->easy_handle);
+                      curl_easy_cleanup(ps->recv_endpoint);
+                      ps->recv_endpoint=NULL;

                     }
                   }
                     }
                   }

-
-                  if (GNUNET_OK != remove_http_message(cs, cs->pending_outbound_msg_tail))
-                    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Message could not be removed from session `%s'", GNUNET_i2s(&cs->partner));
-                  /* send pending messages */
-                  if (cs->pending_outbound_msg_tail!= NULL)
-                  {
-                    send_select_init (plugin, cs);
-                  }
+                  if ((ps->recv_connected == GNUNET_NO) && (ps->send_connected == GNUNET_NO))
+                    remove_session (pc, ps, GNUNET_YES, GNUNET_SYSERR);

                   return;
                 default:
                   break;
                   return;
                 default:
                   break;


@@ -1012,7 +1441,7 @@ static void send_execute (void *cls,
       handles_last_run = running;
     }
   while (mret == CURLM_CALL_MULTI_PERFORM);
       handles_last_run = running;
     }
   while (mret == CURLM_CALL_MULTI_PERFORM);

-  send_prepare(plugin, cls);
+  send_schedule(plugin, cls);

 }
 
 
 }
 
 


@@ -1021,7 +1450,7 @@ static void send_execute (void *cls,
  * @param ses session to send data to
  * @return bytes sent to peer
  */
  * @param ses session to send data to
  * @return bytes sent to peer
  */

-static size_t send_prepare(void *cls, struct Session* ses )
+static size_t send_schedule(void *cls, struct Session* ses )

 {
   struct Plugin *plugin = cls;
   fd_set rs;
 {
   struct Plugin *plugin = cls;
   fd_set rs;


@@ -1061,7 +1490,7 @@ static size_t send_prepare(void *cls, struct Session* ses )
   gws = GNUNET_NETWORK_fdset_create ();
   GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
   GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
   gws = GNUNET_NETWORK_fdset_create ();
   GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
   GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);

-  plugin->http_task_send = GNUNET_SCHEDULER_add_select (plugin->env->sched,
+  plugin->http_server_task_send = GNUNET_SCHEDULER_add_select (plugin->env->sched,

                                    GNUNET_SCHEDULER_PRIORITY_DEFAULT,
                                    GNUNET_SCHEDULER_NO_TASK,
                                    GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 0),
                                    GNUNET_SCHEDULER_PRIORITY_DEFAULT,
                                    GNUNET_SCHEDULER_NO_TASK,
                                    GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 0),


@@ -1076,27 +1505,38 @@ static size_t send_prepare(void *cls, struct Session* ses )
   return 0;
 }
 
   return 0;
 }
 

+

 /**
  * Function that can be used by the transport service to transmit
 /**
  * Function that can be used by the transport service to transmit

- * a message using the plugin.
+ * a message using the plugin.   Note that in the case of a
+ * peer disconnecting, the continuation MUST be called
+ * prior to the disconnect notification itself.  This function
+ * will be called with this peer's HELLO message to initiate
+ * a fresh connection to another peer.

  *
  * @param cls closure
  * @param target who should receive this message
  *
  * @param cls closure
  * @param target who should receive this message

- * @param priority how important is the message

  * @param msgbuf the message to transmit
  * @param msgbuf_size number of bytes in 'msgbuf'
  * @param msgbuf the message to transmit
  * @param msgbuf_size number of bytes in 'msgbuf'

- * @param to when should we time out
+ * @param priority how important is the message (most plugins will
+ *                 ignore message priority and just FIFO)
+ * @param timeout how long to wait at most for the transmission (does not
+ *                require plugins to discard the message after the timeout,
+ *                just advisory for the desired delay; most plugins will ignore
+ *                this as well)

  * @param session which session must be used (or NULL for "any")
  * @param addr the address to use (can be NULL if the plugin
  *                is "on its own" (i.e. re-use existing TCP connection))
  * @param addrlen length of the address in bytes
  * @param force_address GNUNET_YES if the plugin MUST use the given address,
  * @param session which session must be used (or NULL for "any")
  * @param addr the address to use (can be NULL if the plugin
  *                is "on its own" (i.e. re-use existing TCP connection))
  * @param addrlen length of the address in bytes
  * @param force_address GNUNET_YES if the plugin MUST use the given address,

- *                otherwise the plugin may use other addresses or
- *                existing connections (if available)
+ *                GNUNET_NO means the plugin may use any other address and
+ *                GNUNET_SYSERR means that only reliable existing
+ *                bi-directional connections should be used (regardless
+ *                of address)

  * @param cont continuation to call once the message has
  *        been transmitted (or if the transport is ready
  *        for the next transmission call; or if the
  * @param cont continuation to call once the message has
  *        been transmitted (or if the transport is ready
  *        for the next transmission call; or if the

- *        peer disconnected...)
+ *        peer disconnected...); can be NULL

  * @param cont_cls closure for cont
  * @return number of bytes used (on the physical network, with overheads);
  *         -1 on hard errors (i.e. address invalid); 0 is a legal value
  * @param cont_cls closure for cont
  * @return number of bytes used (on the physical network, with overheads);
  *         -1 on hard errors (i.e. address invalid); 0 is a legal value


@@ -1117,77 +1557,141 @@ http_plugin_send (void *cls,
                   void *cont_cls)
 {
   struct Plugin *plugin = cls;
                   void *cont_cls)
 {
   struct Plugin *plugin = cls;

-  char *address;
-  char *url;
-  struct Session *cs;

   struct HTTP_Message *msg;
   struct HTTP_Message *msg;

-  unsigned int res;
+
+  struct HTTP_PeerContext * pc;
+  struct Session * ps = NULL;
+  struct Session * ps_tmp = NULL;

 
   GNUNET_assert(cls !=NULL);
 
   GNUNET_assert(cls !=NULL);

-  url = NULL;
-  address = NULL;

 
 

-  cs = GNUNET_CONTAINER_multihashmap_get (plugin->sessions, &target->hashPubKey);
-  if ( cs == NULL)
+  char * force = GNUNET_malloc(40);
+  if (force_address == GNUNET_YES)
+    strcpy(force,"forced addr.");
+  if (force_address == GNUNET_NO)
+    strcpy(force,"any addr.");
+  if (force_address == GNUNET_SYSERR)
+    strcpy(force,"reliable bi-direc. address addr.");
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Transport tells me to send %u bytes to `%s' using %s (%s) and session: %X\n",
+                                      msgbuf_size,
+                                      GNUNET_i2s(target),
+                                      force,
+                                      http_plugin_address_to_string(NULL, addr, addrlen),
+                                      session);
+  GNUNET_free(force);
+
+  pc = GNUNET_CONTAINER_multihashmap_get (plugin->peers, &target->hashPubKey);
+  /* Peer unknown */
+  if (pc==NULL)

   {
   {

-    cs = create_session(plugin, (char *) addr, addrlen, NULL, 0, target);
-    cs->is_active = GNUNET_YES;
-    res = GNUNET_CONTAINER_multihashmap_put ( plugin->sessions,
-                                        &cs->partner.hashPubKey,
-                                        cs,
-                                        GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
-    if (res == GNUNET_OK)
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  "New Session `%s' inserted\n", GNUNET_i2s(target));
+    pc = GNUNET_malloc(sizeof (struct HTTP_PeerContext));
+    pc->plugin = plugin;
+    pc->session_id_counter=1;
+    memcpy(&pc->identity, target, sizeof(struct GNUNET_PeerIdentity));
+    GNUNET_CONTAINER_multihashmap_put(plugin->peers, &pc->identity.hashPubKey, pc, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);

   }
   }

-  if (cs != NULL)
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "Session `%s' found\n", GNUNET_i2s(target));

 
 

-  GNUNET_assert ((addr!=NULL) && (addrlen != 0));
-  if (addrlen == (sizeof (struct IPv4HttpAddress)))
+  /* Search for existing session using the passed address */
+  if  ((addr!=NULL) && (addrlen != 0))
+  {
+    ps = get_Session(plugin, pc, addr, addrlen);
+  }
+  if (ps != NULL)
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Found existing connection to peer %s with given address, using %X\n", GNUNET_i2s(target), ps);
+
+  /* Search for existing session using the passed session */
+  if ((ps==NULL) && (force_address != GNUNET_YES))

   {
   {

-    address = GNUNET_malloc(INET_ADDRSTRLEN + 1);
-    inet_ntop(AF_INET, &((struct IPv4HttpAddress *) addr)->ipv4_addr,address,INET_ADDRSTRLEN);
-    GNUNET_asprintf (&url,
-                     "http://%s:%u/%s",
-                     address,
-                     ntohs(((struct IPv4HttpAddress *) addr)->u_port),
-                     (char *) (&plugin->my_ascii_hash_ident));
-    GNUNET_free(address);
+    ps_tmp = pc->head;
+    while (ps_tmp!=NULL)
+    {
+      if ((ps_tmp==session) && (ps_tmp->recv_force_disconnect==GNUNET_NO) && (ps_tmp->send_force_disconnect==GNUNET_NO) &&
+          (ps_tmp->recv_connected==GNUNET_YES) && (ps_tmp->send_connected==GNUNET_YES))
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Found existing connection to peer %s with given session, using inbound session %X\n", GNUNET_i2s(target), ps_tmp);
+        ps = ps_tmp;
+        break;
+      }
+      ps_tmp=ps_tmp->next;
+    }

   }
   }

-  else if (addrlen == (sizeof (struct IPv6HttpAddress)))
+
+  /* session not existing, address not forced -> looking for other session */
+  if ((ps==NULL) && (force_address != GNUNET_YES))

   {
   {

-    address = GNUNET_malloc(INET6_ADDRSTRLEN + 1);
-    inet_ntop(AF_INET6, &((struct IPv6HttpAddress *) addr)->ipv6_addr,address,INET6_ADDRSTRLEN);
-    GNUNET_asprintf(&url,
-                    "http://%s:%u/%s",
-                    address,
-                    ntohs(((struct IPv6HttpAddress *) addr)->u6_port),
-                    (char *) (&plugin->my_ascii_hash_ident));
-    GNUNET_free(address);
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection, but free to choose existing, searching for existing connection to peer %s\n", GNUNET_i2s(target));
+    /* Choosing different session to peer when possible */
+    struct Session * tmp = pc->head;
+    while (tmp!=NULL)
+    {
+      if ((tmp->recv_connected) && (tmp->send_connected) && (tmp->recv_force_disconnect==GNUNET_NO) && (tmp->send_force_disconnect==GNUNET_NO))
+      {
+        ps = tmp;
+      }
+      tmp = tmp->next;
+    }
+    if (ps != NULL)
+     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection to peer %s, selected connection %X\n", GNUNET_i2s(target),ps);
+    else
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection to peer %s, no connection found\n", GNUNET_i2s(target));
+  }
+
+  /* session not existing, but address forced -> creating new session */
+  if ((ps==NULL) || ((ps==NULL) && (force_address == GNUNET_YES)))
+  {
+    if ((addr!=NULL) && (addrlen!=0))
+    {
+      if (force_address == GNUNET_YES)
+        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection & forced address: creating new connection to peer %s\n", GNUNET_i2s(target));
+      if (force_address != GNUNET_YES)
+        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection: creating new connection to peer %s\n", GNUNET_i2s(target));
+
+      ps = GNUNET_malloc(sizeof (struct Session));
+      if ((addrlen!=0) && (addr!=NULL))
+      {
+      ps->addr = GNUNET_malloc(addrlen);
+      memcpy(ps->addr,addr,addrlen);
+      ps->addrlen = addrlen;
+      }
+      else
+      {
+        ps->addr = NULL;
+        ps->addrlen = 0;
+      }
+      ps->direction=OUTBOUND;
+      ps->recv_connected = GNUNET_NO;
+      ps->recv_force_disconnect = GNUNET_NO;
+      ps->send_connected = GNUNET_NO;
+      ps->send_force_disconnect = GNUNET_NO;
+      ps->pending_msgs_head = NULL;
+      ps->pending_msgs_tail = NULL;
+      ps->peercontext=pc;
+      ps->session_id = pc->session_id_counter;
+      pc->session_id_counter++;
+      ps->url = create_url (plugin, ps->addr, ps->addrlen, ps->session_id);
+      if (ps->msgtok == NULL)
+        ps->msgtok = GNUNET_SERVER_mst_create (&curl_receive_mst_cb, ps);
+      GNUNET_CONTAINER_DLL_insert(pc->head,pc->tail,ps);
+    }
+    else
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing session & and no address given: no way to send this message to peer `%s'!\n", GNUNET_i2s(target));
+      return -1;
+    }

   }
 
   }
 

-  /* setting up message */
-  msg = GNUNET_malloc (sizeof (struct HTTP_Message));
+  /* create msg */
+  msg = GNUNET_malloc (sizeof (struct HTTP_Message) + msgbuf_size);

   msg->next = NULL;
   msg->next = NULL;

-  msg->len = msgbuf_size;
+  msg->size = msgbuf_size;

   msg->pos = 0;
   msg->pos = 0;

-  msg->buf = GNUNET_malloc (msgbuf_size);
-  msg->dest_url = url;
+  msg->buf = (char *) &msg[1];

   msg->transmit_cont = cont;
   msg->transmit_cont_cls = cont_cls;
   memcpy (msg->buf,msgbuf, msgbuf_size);
   msg->transmit_cont = cont;
   msg->transmit_cont_cls = cont_cls;
   memcpy (msg->buf,msgbuf, msgbuf_size);

-  /* insert created message in double linked list of pending messages */
-  GNUNET_CONTAINER_DLL_insert (cs->pending_outbound_msg_head, cs->pending_outbound_msg_tail, msg);
+  GNUNET_CONTAINER_DLL_insert(ps->pending_msgs_head,ps->pending_msgs_tail,msg);

 
 

-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: sending %u bytes of data from peer `%4.4s' to peer `%s'\n",msgbuf_size,(char *) &plugin->my_ascii_hash_ident,GNUNET_i2s(target));
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: url `%s'\n",url);
-  if (msg == cs->pending_outbound_msg_tail)
-  {
-    return send_select_init (plugin, cs);
-  }
-  return msgbuf_size;
+  return send_check_connections (plugin, ps);

 }
 
 
 }
 
 


@@ -1204,9 +1708,50 @@ static void
 http_plugin_disconnect (void *cls,
                             const struct GNUNET_PeerIdentity *target)
 {
 http_plugin_disconnect (void *cls,
                             const struct GNUNET_PeerIdentity *target)
 {

-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: http_plugin_disconnect\n");
-  // struct Plugin *plugin = cls;
-  // FIXME
+
+  struct Plugin *plugin = cls;
+  struct HTTP_PeerContext *pc = NULL;
+  struct Session *ps = NULL;
+
+  pc = GNUNET_CONTAINER_multihashmap_get (plugin->peers, &target->hashPubKey);
+  if (pc==NULL)
+    return;
+
+  ps = pc->head;
+
+  while (ps!=NULL)
+  {
+    if (ps->direction==OUTBOUND)
+    {
+      if (ps->send_endpoint!=NULL)
+      {
+        curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint);
+        curl_easy_cleanup(ps->send_endpoint);
+        ps->send_endpoint=NULL;
+        ps->send_force_disconnect = GNUNET_YES;
+      }
+      if (ps->recv_endpoint!=NULL)
+      {
+       curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint);
+       curl_easy_cleanup(ps->recv_endpoint);
+       ps->recv_endpoint=NULL;
+       ps->recv_force_disconnect = GNUNET_YES;
+      }
+    }
+    if (ps->direction==INBOUND)
+    {
+      ps->recv_force_disconnect = GNUNET_YES;
+      ps->send_force_disconnect = GNUNET_YES;
+    }
+    while (ps->pending_msgs_head!=NULL)
+    {
+      remove_http_message(ps, ps->pending_msgs_head);
+    }
+    ps->recv_active = GNUNET_NO;
+    ps->send_active = GNUNET_NO;
+    ps=ps->next;
+  }
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"All connections to peer `%s' terminated\n", GNUNET_i2s(target));

 }
 
 
 }
 
 


@@ -1290,7 +1835,7 @@ http_plugin_address_pretty_printer (void *cls,
  */
 static int
 http_plugin_address_suggested (void *cls,
  */
 static int
 http_plugin_address_suggested (void *cls,

-                                  void *addr, size_t addrlen)
+                               const void *addr, size_t addrlen)

 {
   struct Plugin *plugin = cls;
   struct IPv4HttpAddress *v4;
 {
   struct Plugin *plugin = cls;
   struct IPv4HttpAddress *v4;


@@ -1329,8 +1874,6 @@ http_plugin_address_suggested (void *cls,
         return GNUNET_SYSERR;
       }
     }
         return GNUNET_SYSERR;
       }
     }

-
-

   return GNUNET_OK;
 }
 
   return GNUNET_OK;
 }
 


@@ -1357,10 +1900,9 @@ http_plugin_address_to_string (void *cls,
   struct sockaddr_in6 a6;
   char * address;
   char * ret;
   struct sockaddr_in6 a6;
   char * address;
   char * ret;

-  unsigned int port;
+  uint16_t port;

   unsigned int res;
 
   unsigned int res;
 

-  GNUNET_assert(cls !=NULL);

   if (addrlen == sizeof (struct IPv6HttpAddress))
     {
       address = GNUNET_malloc (INET6_ADDRSTRLEN);
   if (addrlen == sizeof (struct IPv6HttpAddress))
     {
       address = GNUNET_malloc (INET6_ADDRSTRLEN);


@@ -1406,28 +1948,28 @@ process_interfaces (void *cls,
                     const struct sockaddr *addr, socklen_t addrlen)
 {
   struct Plugin *plugin = cls;
                     const struct sockaddr *addr, socklen_t addrlen)
 {
   struct Plugin *plugin = cls;

-  struct IPv4HttpAddress t4;
-  struct IPv6HttpAddress t6;
+  struct IPv4HttpAddress * t4;
+  struct IPv6HttpAddress * t6;

   int af;
   int af;

-  void *arg;
-  uint16_t args;

 
   GNUNET_assert(cls !=NULL);
   af = addr->sa_family;
   if (af == AF_INET)
     {
 
   GNUNET_assert(cls !=NULL);
   af = addr->sa_family;
   if (af == AF_INET)
     {

+      t4 = GNUNET_malloc(sizeof(struct IPv4HttpAddress));

       if (INADDR_LOOPBACK == ntohl(((struct sockaddr_in *) addr)->sin_addr.s_addr))
       {
         /* skip loopback addresses */
         return GNUNET_OK;
       }
       if (INADDR_LOOPBACK == ntohl(((struct sockaddr_in *) addr)->sin_addr.s_addr))
       {
         /* skip loopback addresses */
         return GNUNET_OK;
       }

-      t4.ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
-      t4.u_port = htons (plugin->port_inbound);
-      arg = &t4;
-      args = sizeof (t4);
+      t4->ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
+      t4->u_port = htons (plugin->port_inbound);
+      plugin->env->notify_address(plugin->env->cls,"http",t4, sizeof (struct IPv4HttpAddress), GNUNET_TIME_UNIT_FOREVER_REL);
+

     }
   else if (af == AF_INET6)
     {
     }
   else if (af == AF_INET6)
     {

+      t6 = GNUNET_malloc(sizeof(struct IPv6HttpAddress));

       if (IN6_IS_ADDR_LINKLOCAL (&((struct sockaddr_in6 *) addr)->sin6_addr))
         {
           /* skip link local addresses */
       if (IN6_IS_ADDR_LINKLOCAL (&((struct sockaddr_in6 *) addr)->sin6_addr))
         {
           /* skip link local addresses */


@@ -1438,51 +1980,57 @@ process_interfaces (void *cls,
           /* skip loopback addresses */
           return GNUNET_OK;
         }
           /* skip loopback addresses */
           return GNUNET_OK;
         }

-      memcpy (&t6.ipv6_addr,
+      memcpy (&t6->ipv6_addr,

               &((struct sockaddr_in6 *) addr)->sin6_addr,
               sizeof (struct in6_addr));
               &((struct sockaddr_in6 *) addr)->sin6_addr,
               sizeof (struct in6_addr));

-      t6.u6_port = htons (plugin->port_inbound);
-      arg = &t6;
-      args = sizeof (t6);
-    }
-  else
-    {
-      GNUNET_break (0);
-      return GNUNET_OK;
+      t6->u6_port = htons (plugin->port_inbound);
+      plugin->env->notify_address(plugin->env->cls,"http",t6,sizeof (struct IPv6HttpAddress) , GNUNET_TIME_UNIT_FOREVER_REL);

     }
     }

-  plugin->env->notify_address(plugin->env->cls,"http",arg, args, GNUNET_TIME_UNIT_FOREVER_REL);

   return GNUNET_OK;
 }
 
   return GNUNET_OK;
 }
 

-int hashMapFreeIterator (void *cls, const GNUNET_HashCode *key, void *value)
+int remove_peer_context_Iterator (void *cls, const GNUNET_HashCode *key, void *value)

 {
 {

-  struct Session * cs = value;
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing session for peer `%s'\n",GNUNET_i2s(&cs->partner));
+  struct HTTP_PeerContext * pc = value;
+  struct Session * ps = pc->head;
+  struct Session * tmp = NULL;
+  struct HTTP_Message * msg = NULL;
+  struct HTTP_Message * msg_tmp = NULL;

 
 

-  /* freeing messages */
-  struct HTTP_Message *cur;
-  struct HTTP_Message *tmp;
-  cur = cs->pending_outbound_msg_head;
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing context for peer `%s'\n",GNUNET_i2s(&pc->identity));

 
 

-  while (cur != NULL)
+  while (ps!=NULL)

   {
   {

-    tmp = cur->next;
-    GNUNET_free_non_null(cur->dest_url);
-    GNUNET_free_non_null (cur->buf);
-    GNUNET_free (cur);
-    cur = tmp;
-  }
-  GNUNET_SERVER_mst_destroy (cs->msgtok);
-  GNUNET_free (cs->pending_inbound_msg->buf);
-  GNUNET_free (cs->pending_inbound_msg);
-  GNUNET_free_non_null (cs->addr_in);
-  GNUNET_free_non_null (cs->addr_out);
-  GNUNET_free (cs);
+    tmp = ps->next;

 
 

+    GNUNET_free_non_null (ps->addr);
+    GNUNET_free(ps->url);
+    if (ps->msgtok != NULL)
+      GNUNET_SERVER_mst_destroy (ps->msgtok);
+
+    msg = ps->pending_msgs_head;
+    while (msg!=NULL)
+    {
+      msg_tmp = msg->next;
+      GNUNET_free(msg);
+      msg = msg_tmp;
+    }
+    if (ps->direction==OUTBOUND)
+    {
+      if (ps->send_endpoint!=NULL)
+        curl_easy_cleanup(ps->send_endpoint);
+      if (ps->recv_endpoint!=NULL)
+        curl_easy_cleanup(ps->recv_endpoint);
+    }
+
+    GNUNET_free(ps);
+    ps=tmp;
+  }
+  GNUNET_free(pc);

   return GNUNET_YES;
 }
 
   return GNUNET_YES;
 }
 

+

 /**
  * Exit point from the plugin.
  */
 /**
  * Exit point from the plugin.
  */


@@ -1494,43 +2042,41 @@ libgnunet_plugin_transport_http_done (void *cls)
   CURLMcode mret;
 
   GNUNET_assert(cls !=NULL);
   CURLMcode mret;
 
   GNUNET_assert(cls !=NULL);

-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unloading http plugin...\n");

 
 

-  if ( plugin->http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
+  if ( plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)

   {
   {

-    GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_task_v4);
-    plugin->http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
+    GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v4);
+    plugin->http_server_task_v4 = GNUNET_SCHEDULER_NO_TASK;

   }
 
   }
 

-  if ( plugin->http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
+  if ( plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)

   {
   {

-    GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_task_v6);
-    plugin->http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
+    GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v6);
+    plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;

   }
 
   }
 

-  if ( plugin->http_task_send != GNUNET_SCHEDULER_NO_TASK)
+  if ( plugin->http_server_task_send != GNUNET_SCHEDULER_NO_TASK)

   {
   {

-    GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_task_send);
-    plugin->http_task_send = GNUNET_SCHEDULER_NO_TASK;
+    GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_send);
+    plugin->http_server_task_send = GNUNET_SCHEDULER_NO_TASK;

   }
 
   }
 

-  if (plugin->http_daemon_v4 != NULL)
+  if (plugin->http_server_daemon_v4 != NULL)

   {
   {

-    MHD_stop_daemon (plugin->http_daemon_v4);
-    plugin->http_daemon_v4 = NULL;
+    MHD_stop_daemon (plugin->http_server_daemon_v4);
+    plugin->http_server_daemon_v4 = NULL;

   }
   }

-  if (plugin->http_daemon_v6 != NULL)
+  if (plugin->http_server_daemon_v6 != NULL)

   {
   {

-    MHD_stop_daemon (plugin->http_daemon_v6);
-    plugin->http_daemon_v6 = NULL;
+    MHD_stop_daemon (plugin->http_server_daemon_v6);
+    plugin->http_server_daemon_v6 = NULL;

   }
 
   }
 

-  /* free all sessions */
-  GNUNET_CONTAINER_multihashmap_iterate (plugin->sessions,
-                                         &hashMapFreeIterator,
+  /* free all peer information */
+  GNUNET_CONTAINER_multihashmap_iterate (plugin->peers,
+                                         &remove_peer_context_Iterator,

                                          NULL);
                                          NULL);

-
-  GNUNET_CONTAINER_multihashmap_destroy (plugin->sessions);
+  GNUNET_CONTAINER_multihashmap_destroy (plugin->peers);

 
   mret = curl_multi_cleanup(plugin->multi_handle);
   if ( CURLM_OK != mret)
 
   mret = curl_multi_cleanup(plugin->multi_handle);
   if ( CURLM_OK != mret)


@@ -1538,6 +2084,7 @@ libgnunet_plugin_transport_http_done (void *cls)
 
   GNUNET_free (plugin);
   GNUNET_free (api);
 
   GNUNET_free (plugin);
   GNUNET_free (api);

+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unload http plugin complete...\n");

   return NULL;
 }
 
   return NULL;
 }
 


@@ -1559,7 +2106,8 @@ libgnunet_plugin_transport_http_init (void *cls)
 
   plugin = GNUNET_malloc (sizeof (struct Plugin));
   plugin->env = env;
 
   plugin = GNUNET_malloc (sizeof (struct Plugin));
   plugin->env = env;

-  plugin->sessions = NULL;
+  plugin->peers = NULL;
+

   api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
   api->cls = plugin;
   api->send = &http_plugin_send;
   api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
   api->cls = plugin;
   api->send = &http_plugin_send;


@@ -1590,37 +2138,37 @@ libgnunet_plugin_transport_http_init (void *cls)
   GNUNET_assert ((port > 0) && (port <= 65535));
   plugin->port_inbound = port;
   gn_timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
   GNUNET_assert ((port > 0) && (port <= 65535));
   plugin->port_inbound = port;
   gn_timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;

-  if ((plugin->http_daemon_v4 == NULL) && (plugin->http_daemon_v6 == NULL) && (port != 0))
+  if ((plugin->http_server_daemon_v4 == NULL) && (plugin->http_server_daemon_v6 == NULL) && (port != 0))

     {
     {

-    plugin->http_daemon_v6 = MHD_start_daemon (MHD_USE_IPv6,
+    plugin->http_server_daemon_v6 = MHD_start_daemon (MHD_USE_IPv6,

                                        port,
                                        port,

-                                       &acceptPolicyCallback,
-                                       plugin , &accessHandlerCallback, plugin,
+                                       &mhd_accept_cb,
+                                       plugin , &mdh_access_cb, plugin,

                                        MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
                                        MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
                                        MHD_OPTION_CONNECTION_TIMEOUT, (gn_timeout.value / 1000),
                                        MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
                                        MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
                                        MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
                                        MHD_OPTION_CONNECTION_TIMEOUT, (gn_timeout.value / 1000),
                                        MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),

-                                       MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
+                                       MHD_OPTION_NOTIFY_COMPLETED, &mhd_termination_cb, NULL,

                                        MHD_OPTION_END);
                                        MHD_OPTION_END);

-    plugin->http_daemon_v4 = MHD_start_daemon (MHD_NO_FLAG,
+    plugin->http_server_daemon_v4 = MHD_start_daemon (MHD_NO_FLAG,

                                        port,
                                        port,

-                                       &acceptPolicyCallback,
-                                       plugin , &accessHandlerCallback, plugin,
+                                       &mhd_accept_cb,
+                                       plugin , &mdh_access_cb, plugin,

                                        MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
                                        MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
                                        MHD_OPTION_CONNECTION_TIMEOUT, (gn_timeout.value / 1000),
                                        MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
                                        MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
                                        MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
                                        MHD_OPTION_CONNECTION_TIMEOUT, (gn_timeout.value / 1000),
                                        MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),

-                                       MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
+                                       MHD_OPTION_NOTIFY_COMPLETED, &mhd_termination_cb, NULL,

                                        MHD_OPTION_END);
     }
                                        MHD_OPTION_END);
     }

-  if (plugin->http_daemon_v4 != NULL)
-    plugin->http_task_v4 = http_daemon_prepare (plugin, plugin->http_daemon_v4);
-  if (plugin->http_daemon_v6 != NULL)
-    plugin->http_task_v6 = http_daemon_prepare (plugin, plugin->http_daemon_v6);
+  if (plugin->http_server_daemon_v4 != NULL)
+    plugin->http_server_task_v4 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v4);
+  if (plugin->http_server_daemon_v6 != NULL)
+    plugin->http_server_task_v6 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v6);

 
 

-  if (plugin->http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
+  if (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)

     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 on port %u\n",port);
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 on port %u\n",port);

-  else if (plugin->http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
+  else if (plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)

     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 and IPv6 on port %u\n",port);
   else
   {
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 and IPv6 on port %u\n",port);
   else
   {


@@ -1630,7 +2178,9 @@ libgnunet_plugin_transport_http_init (void *cls)
   }
 
   /* Initializing cURL */
   }
 
   /* Initializing cURL */

+  curl_global_init(CURL_GLOBAL_ALL);

   plugin->multi_handle = curl_multi_init();
   plugin->multi_handle = curl_multi_init();

+

   if ( NULL == plugin->multi_handle )
   {
     GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
   if ( NULL == plugin->multi_handle )
   {
     GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,


@@ -1641,7 +2191,7 @@ libgnunet_plugin_transport_http_init (void *cls)
     return NULL;
   }
 
     return NULL;
   }
 

-  plugin->sessions = GNUNET_CONTAINER_multihashmap_create (10);
+  plugin->peers = GNUNET_CONTAINER_multihashmap_create (10);

   GNUNET_OS_network_interfaces_list (&process_interfaces, plugin);
 
   return api;
   GNUNET_OS_network_interfaces_list (&process_interfaces, plugin);
 
   return api;