diff options
Diffstat (limited to 'src/transport/plugin_transport_http_server.c')
-rw-r--r-- | src/transport/plugin_transport_http_server.c | 269 |
1 files changed, 147 insertions, 122 deletions
diff --git a/src/transport/plugin_transport_http_server.c b/src/transport/plugin_transport_http_server.c index 8ec5a5e..4b4f504 100644 --- a/src/transport/plugin_transport_http_server.c +++ b/src/transport/plugin_transport_http_server.c @@ -30,17 +30,7 @@ #define _RECEIVE 0 #define _SEND 1 -struct ServerConnection -{ - /* _RECV or _SEND */ - int direction; - - /* should this connection get disconnected? GNUNET_YES/NO */ - int disconnect; - - struct Session *session; - struct MHD_Connection *mhd_conn; -}; +static struct Plugin * p; /** * Function that queries MHD's select sets and @@ -95,12 +85,13 @@ static char * server_load_file (const char *file) { struct GNUNET_DISK_FileHandle *gn_file; - struct stat fstat; + uint64_t fsize; char *text = NULL; - if (0 != STAT (file, &fstat)) + if (GNUNET_OK != GNUNET_DISK_file_size (file, + &fsize, GNUNET_NO, GNUNET_YES)) return NULL; - text = GNUNET_malloc (fstat.st_size + 1); + text = GNUNET_malloc (fsize + 1); gn_file = GNUNET_DISK_file_open (file, GNUNET_DISK_OPEN_READ, GNUNET_DISK_PERM_USER_READ); @@ -109,13 +100,13 @@ server_load_file (const char *file) GNUNET_free (text); return NULL; } - if (GNUNET_SYSERR == GNUNET_DISK_file_read (gn_file, text, fstat.st_size)) + if (GNUNET_SYSERR == GNUNET_DISK_file_read (gn_file, text, fsize)) { GNUNET_free (text); GNUNET_DISK_file_close (gn_file); return NULL; } - text[fstat.st_size] = '\0'; + text[fsize] = '\0'; GNUNET_DISK_file_close (gn_file); return text; } @@ -172,10 +163,8 @@ server_load_certificate (struct Plugin *plugin) GNUNET_free_non_null (plugin->cert); plugin->cert = NULL; -#if VERBOSE_SERVER GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "No usable TLS certificate found, creating certificate\n"); -#endif errno = 0; cert_creation = GNUNET_OS_start_process (GNUNET_NO, NULL, NULL, @@ -200,7 +189,7 @@ server_load_certificate (struct Plugin *plugin) return GNUNET_SYSERR; } GNUNET_assert (GNUNET_OK == GNUNET_OS_process_wait (cert_creation)); - GNUNET_OS_process_close (cert_creation); + GNUNET_OS_process_destroy (cert_creation); plugin->key = server_load_file (key_file); plugin->cert = server_load_file (cert_file); @@ -226,10 +215,7 @@ server_load_certificate (struct Plugin *plugin) } GNUNET_free (key_file); GNUNET_free (cert_file); -#if DEBUG_HTTP GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "TLS certificate loaded\n"); -#endif - return res; } #endif @@ -242,12 +228,17 @@ server_load_certificate (struct Plugin *plugin) * @param now GNUNET_YES to schedule execution immediately, GNUNET_NO to wait * until timeout */ - static void server_reschedule (struct Plugin *plugin, struct MHD_Daemon *server, int now) { if ((server == plugin->server_v4) && (plugin->server_v4 != NULL)) { + if (GNUNET_YES == plugin->server_v4_immediately) + return; /* No rescheduling, server will run asap */ + + if (GNUNET_YES == now) + plugin->server_v4_immediately = GNUNET_YES; + if (plugin->server_v4_task != GNUNET_SCHEDULER_NO_TASK) { GNUNET_SCHEDULER_cancel (plugin->server_v4_task); @@ -258,6 +249,12 @@ server_reschedule (struct Plugin *plugin, struct MHD_Daemon *server, int now) if ((server == plugin->server_v6) && (plugin->server_v6 != NULL)) { + if (GNUNET_YES == plugin->server_v6_immediately) + return; /* No rescheduling, server will run asap */ + + if (GNUNET_YES == now) + plugin->server_v6_immediately = GNUNET_YES; + if (plugin->server_v6_task != GNUNET_SCHEDULER_NO_TASK) { GNUNET_SCHEDULER_cancel (plugin->server_v6_task); @@ -273,11 +270,16 @@ server_reschedule (struct Plugin *plugin, struct MHD_Daemon *server, int now) * @param client clien * @param message the message to be forwarded to transport service */ -static void +static int server_receive_mst_cb (void *cls, void *client, const struct GNUNET_MessageHeader *message) { struct Session *s = cls; + + GNUNET_assert (NULL != p); + if (GNUNET_NO == exist_session(p, s)) + return GNUNET_OK; + struct Plugin *plugin = s->plugin; struct GNUNET_TIME_Relative delay; @@ -294,8 +296,10 @@ server_receive_mst_cb (void *cls, void *client, http_plugin_address_to_string (NULL, s->addr, s->addrlen), delay); } + return GNUNET_OK; } + /** * Callback called by MHD when it needs data to send * @param cls current session @@ -308,47 +312,54 @@ static ssize_t server_send_callback (void *cls, uint64_t pos, char *buf, size_t max) { struct Session *s = cls; - + ssize_t bytes_read = 0; struct HTTP_Message *msg; - int bytes_read = 0; - //static int c = 0; + GNUNET_assert (NULL != p); + if (GNUNET_NO == exist_session(p, s)) + return 0; msg = s->msg_head; - if (msg != NULL) + if (NULL != msg) { /* sending */ - 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); - } - else - { - memcpy (buf, &msg->buf[msg->pos], max); - msg->pos += max; - bytes_read = max; - } + bytes_read = GNUNET_MIN (msg->size - msg->pos, + max); + memcpy (buf, &msg->buf[msg->pos], bytes_read); + msg->pos += bytes_read; /* removing message */ if (msg->pos == msg->size) { + GNUNET_CONTAINER_DLL_remove (s->msg_head, s->msg_tail, msg); if (NULL != msg->transmit_cont) msg->transmit_cont (msg->transmit_cont_cls, &s->target, GNUNET_OK); - GNUNET_CONTAINER_DLL_remove (s->msg_head, s->msg_tail, msg); GNUNET_free (msg); } } + GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, s->plugin->name, + "Server: %p: sent %u bytes\n", s, bytes_read); + return bytes_read; +} - struct Plugin *plugin = s->plugin; - GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, - "Server: %X: sent %u bytes\n", s, bytes_read); - return bytes_read; +static struct Session * +server_lookup_session (struct Plugin *plugin, + struct ServerConnection * sc) +{ + struct Session *s; + + for (s = plugin->head; NULL != s; s = s->next) + if ((s->server_recv == sc) || (s->server_send == sc)) + return s; + for (s = plugin->server_semi_head; NULL != s; s = s->next) + if ((s->server_recv == sc) || (s->server_send == sc)) + return s; + return NULL; } + static struct ServerConnection * -server_lookup_session (struct Plugin *plugin, +server_lookup_serverconnection (struct Plugin *plugin, struct MHD_Connection *mhd_connection, const char *url, const char *method) { @@ -368,12 +379,11 @@ server_lookup_session (struct Plugin *plugin, uint32_t tag = 0; int direction = GNUNET_SYSERR; - conn_info = - MHD_get_connection_info (mhd_connection, + conn_info = MHD_get_connection_info (mhd_connection, MHD_CONNECTION_INFO_CLIENT_ADDRESS); if ((conn_info->client_addr->sa_family != AF_INET) && (conn_info->client_addr->sa_family != AF_INET6)) - return MHD_NO; + return NULL; if ((strlen (&url[1]) >= 105) && (url[104] == ';')) { @@ -408,12 +418,12 @@ server_lookup_session (struct Plugin *plugin, plugin->cur_connections++; GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, - "Server: New inbound connection from %s with tag %u\n", + "Server: New %s connection from %s with tag %u\n", + method, GNUNET_i2s (&target), tag); - /* find duplicate session */ + /* find duplicate session */ t = plugin->head; - while (t != NULL) { if ((t->inbound) && @@ -469,6 +479,12 @@ server_lookup_session (struct Plugin *plugin, "Server: Found matching semi-session, merging session for peer `%s'\n", GNUNET_i2s (&target)); + plugin->inbound_sessions ++; + GNUNET_STATISTICS_set (plugin->env->stats, + "# HTTP inbound sessions", + plugin->inbound_sessions, + GNUNET_NO); + GNUNET_assert (NULL != s); goto found; } if ((direction == _RECEIVE) && (t->server_recv != NULL)) @@ -487,6 +503,12 @@ server_lookup_session (struct Plugin *plugin, GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, "Server: Found matching semi-session, merging session for peer `%s'\n", GNUNET_i2s (&target)); + plugin->inbound_sessions ++; + GNUNET_STATISTICS_set (plugin->env->stats, + "# HTTP inbound sessions", + plugin->inbound_sessions, + GNUNET_NO); + GNUNET_assert (NULL != s); goto found; } @@ -517,16 +539,15 @@ create: GNUNET_break (0); goto error; } - s = create_session (plugin, &target, a, a_len, NULL, NULL); + s = create_session (plugin, &target, a, a_len); + GNUNET_assert (NULL != s); s->ats_address_network_type = ats.value; - s->inbound = GNUNET_YES; - s->next_receive = GNUNET_TIME_absolute_get_zero (); + s->next_receive = GNUNET_TIME_UNIT_ZERO_ABS; s->tag = tag; - if (0 == strcmp (MHD_HTTP_METHOD_PUT, method)) - s->server_recv = s; - if (0 == strcmp (MHD_HTTP_METHOD_GET, method)) - s->server_send = s; + s->server_recv = NULL; + s->server_send = NULL; + GNUNET_CONTAINER_DLL_insert (plugin->server_semi_head, plugin->server_semi_tail, s); goto found; @@ -550,7 +571,7 @@ found: int to = (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value / 1000); GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, - "Server: Setting timeout for %X to %u sec.\n", sc, to); + "Server: Setting timeout for %p to %u sec.\n", sc, to); MHD_set_connection_option (mhd_connection, MHD_CONNECTION_OPTION_TIMEOUT, to); struct MHD_Daemon *d = NULL; @@ -578,19 +599,17 @@ server_access_cb (void *cls, struct MHD_Connection *mhd_connection, const char *upload_data, size_t * upload_data_size, void **httpSessionCache) { - struct Plugin *plugin = cls; struct ServerConnection *sc = *httpSessionCache; - struct Session *s = NULL; - - int res = MHD_YES; + struct Session *s; struct MHD_Response *response; + int res = MHD_YES; GNUNET_assert (cls != NULL); - /* new connection */ if (sc == NULL) { - sc = server_lookup_session (plugin, mhd_connection, url, method); + /* new connection */ + sc = server_lookup_serverconnection (plugin, mhd_connection, url, method); if (sc != NULL) (*httpSessionCache) = sc; else @@ -603,11 +622,22 @@ server_access_cb (void *cls, struct MHD_Connection *mhd_connection, return res; } } + else + { + /* 'old' connection */ + if (NULL == server_lookup_session (plugin, sc)) + { + /* Session was already disconnected */ + return MHD_NO; + } + } /* existing connection */ sc = (*httpSessionCache); s = sc->session; + GNUNET_assert (NULL != s); + /* connection is to be disconnected */ if (sc->disconnect == GNUNET_YES) { @@ -663,7 +693,7 @@ server_access_cb (void *cls, struct MHD_Connection *mhd_connection, if ((s->next_receive.abs_value <= now.abs_value)) { GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, - "Server: %X: PUT with %u bytes forwarded to MST\n", s, + "Server: %p: PUT with %u bytes forwarded to MST\n", s, *upload_data_size); if (s->msg_tk == NULL) { @@ -683,7 +713,7 @@ server_access_cb (void *cls, struct MHD_Connection *mhd_connection, { t = s->server_recv; GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, - "Server: Setting timeout for %X to %u sec.\n", t, + "Server: Setting timeout for %p to %u sec.\n", t, to); MHD_set_connection_option (t->mhd_conn, MHD_CONNECTION_OPTION_TIMEOUT, to); @@ -692,7 +722,7 @@ server_access_cb (void *cls, struct MHD_Connection *mhd_connection, { t = s->server_send; GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, - "Server: Setting timeout for %X to %u sec.\n", t, + "Server: Setting timeout for %p to %u sec.\n", t, to); MHD_set_connection_option (t->mhd_conn, MHD_CONNECTION_OPTION_TIMEOUT, to); @@ -710,7 +740,7 @@ server_access_cb (void *cls, struct MHD_Connection *mhd_connection, else { GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "Server: %X no inbound bandwidth available! Next read was delayed by %llu ms\n", + "Server: %p no inbound bandwidth available! Next read was delayed by %llu ms\n", s, now.abs_value - s->next_receive.abs_value); } return MHD_YES; @@ -734,24 +764,28 @@ server_disconnect_cb (void *cls, struct MHD_Connection *connection, if (sc == NULL) return; - s = sc->session; + if (NULL == (s = server_lookup_session (p, sc))) + return; + + GNUNET_assert (NULL != p); + if (GNUNET_NO == exist_session(p, s)) + return; + plugin = s->plugin; if (sc->direction == _SEND) { GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, - "Server: %X peer `%s' GET on address `%s' disconnected\n", + "Server: %p peer `%s' GET on address `%s' disconnected\n", s->server_send, GNUNET_i2s (&s->target), http_plugin_address_to_string (NULL, s->addr, s->addrlen)); - s->server_send = NULL; - - if (s->server_recv != NULL) + if (NULL != (tc = s->server_recv)) { - tc = s->server_recv; tc->disconnect = GNUNET_YES; + GNUNET_assert (NULL != tc->mhd_conn); #if MHD_VERSION >= 0x00090E00 - MHD_set_connection_option (sc->mhd_conn, MHD_CONNECTION_OPTION_TIMEOUT, + MHD_set_connection_option (tc->mhd_conn, MHD_CONNECTION_OPTION_TIMEOUT, 1); #endif } @@ -759,16 +793,16 @@ server_disconnect_cb (void *cls, struct MHD_Connection *connection, if (sc->direction == _RECEIVE) { GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, - "Server: %X peer `%s' PUT on address `%s' disconnected\n", + "Server: %p peer `%s' PUT on address `%s' disconnected\n", s->server_recv, GNUNET_i2s (&s->target), http_plugin_address_to_string (NULL, s->addr, s->addrlen)); s->server_recv = NULL; - if (s->server_send != NULL) + if (NULL != (tc = s->server_send)) { - tc = s->server_send; tc->disconnect = GNUNET_YES; + GNUNET_assert (NULL != tc->mhd_conn); #if MHD_VERSION >= 0x00090E00 - MHD_set_connection_option (sc->mhd_conn, MHD_CONNECTION_OPTION_TIMEOUT, + MHD_set_connection_option (tc->mhd_conn, MHD_CONNECTION_OPTION_TIMEOUT, 1); #endif } @@ -778,6 +812,7 @@ server_disconnect_cb (void *cls, struct MHD_Connection *connection, s->msg_tk = NULL; } } + GNUNET_free (sc); t = plugin->server_semi_head; @@ -814,6 +849,12 @@ server_disconnect_cb (void *cls, struct MHD_Connection *connection, s->msg_tk = NULL; } + GNUNET_assert (plugin->inbound_sessions > 0); + plugin->inbound_sessions --; + GNUNET_STATISTICS_set (plugin->env->stats, + "# HTTP inbound sessions", + plugin->inbound_sessions, GNUNET_NO); + notify_session_end (s->plugin, &s->target, s); } } @@ -821,31 +862,22 @@ server_disconnect_cb (void *cls, struct MHD_Connection *connection, int server_disconnect (struct Session *s) { - struct Plugin *plugin = s->plugin; - struct Session *t = plugin->head; - - while (t != NULL) + if (s->server_send != NULL) { - if (t->inbound == GNUNET_YES) - { - if (t->server_send != NULL) - { - ((struct ServerConnection *) t->server_send)->disconnect = GNUNET_YES; - } - if (t->server_send != NULL) - { - ((struct ServerConnection *) t->server_send)->disconnect = GNUNET_YES; - } - } - t = t->next; + ((struct ServerConnection *) s->server_send)->disconnect = GNUNET_YES; } + if (s->server_recv != NULL) + { + ((struct ServerConnection *) s->server_recv)->disconnect = GNUNET_YES; + } + return GNUNET_OK; } int server_send (struct Session *s, struct HTTP_Message *msg) { - GNUNET_CONTAINER_DLL_insert (s->msg_head, s->msg_tail, msg); + GNUNET_CONTAINER_DLL_insert_tail (s->msg_head, s->msg_tail, msg); if (s->addrlen == sizeof (struct IPv4HttpAddress)) { @@ -876,17 +908,15 @@ server_v4_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) GNUNET_assert (cls != NULL); plugin->server_v4_task = GNUNET_SCHEDULER_NO_TASK; - if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN)) return; - +#if 0 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, "Running IPv4 server\n"); - +#endif + plugin->server_v4_immediately = GNUNET_NO; GNUNET_assert (MHD_YES == MHD_run (plugin->server_v4)); - if (plugin->server_v4 != NULL) - plugin->server_v4_task = - server_schedule (plugin, plugin->server_v4, GNUNET_NO); + server_reschedule (plugin, plugin->server_v4, GNUNET_NO); } @@ -902,19 +932,16 @@ server_v6_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc) struct Plugin *plugin = cls; GNUNET_assert (cls != NULL); - plugin->server_v6_task = GNUNET_SCHEDULER_NO_TASK; - if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN)) return; - +#if 0 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, "Running IPv6 server\n"); - +#endif + plugin->server_v6_immediately = GNUNET_NO; GNUNET_assert (MHD_YES == MHD_run (plugin->server_v6)); - if (plugin->server_v6 != NULL) - plugin->server_v6_task = - server_schedule (plugin, plugin->server_v6, GNUNET_NO); + server_reschedule (plugin, plugin->server_v6, GNUNET_NO); } /** @@ -936,7 +963,7 @@ server_schedule (struct Plugin *plugin, struct MHD_Daemon *daemon_handle, struct GNUNET_NETWORK_FDSet *wws; struct GNUNET_NETWORK_FDSet *wes; int max; - unsigned long long timeout; + unsigned MHD_LONG_LONG timeout; static unsigned long long last_timeout = 0; int haveto; @@ -981,13 +1008,13 @@ server_schedule (struct Plugin *plugin, struct MHD_Daemon *daemon_handle, GNUNET_SCHEDULER_cancel (plugin->server_v4_task); plugin->server_v4_task = GNUNET_SCHEDULER_NO_TASK; } -#if VERBOSE_SERVER +#if 0 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, "Scheduling IPv4 server task in %llu ms\n", tv); #endif ret = GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT, - GNUNET_SCHEDULER_NO_TASK, tv, wrs, wws, + tv, wrs, wws, &server_v4_run, plugin); } if (daemon_handle == plugin->server_v6) @@ -997,13 +1024,13 @@ server_schedule (struct Plugin *plugin, struct MHD_Daemon *daemon_handle, GNUNET_SCHEDULER_cancel (plugin->server_v6_task); plugin->server_v6_task = GNUNET_SCHEDULER_NO_TASK; } -#if VERBOSE_SERVER +#if 0 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, "Scheduling IPv6 server task in %llu ms\n", tv); #endif ret = GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT, - GNUNET_SCHEDULER_NO_TASK, tv, wrs, wws, + tv, wrs, wws, &server_v6_run, plugin); } GNUNET_NETWORK_fdset_destroy (wrs); @@ -1017,6 +1044,8 @@ server_start (struct Plugin *plugin) { int res = GNUNET_OK; unsigned int timeout; + p = plugin; + GNUNET_assert (NULL != plugin); #if BUILD_HTTPS res = server_load_certificate (plugin); @@ -1133,13 +1162,9 @@ server_start (struct Plugin *plugin) return GNUNET_SYSERR; } server_reschedule (plugin, plugin->server_v6, GNUNET_NO); - - -#if DEBUG_HTTP GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, "%s server component started on port %u\n", plugin->name, plugin->port); -#endif return res; } @@ -1206,16 +1231,16 @@ server_stop (struct Plugin *plugin) s = t; } + p = NULL; + #if BUILD_HTTPS GNUNET_free_non_null (plugin->crypto_init); GNUNET_free_non_null (plugin->cert); GNUNET_free_non_null (plugin->key); #endif -#if DEBUG_HTTP GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, "%s server component stopped\n", plugin->name); -#endif } |