static void rspamd_map_dns_callback (struct rdns_reply *reply, void *arg) { struct http_callback_data *cbd = arg; struct rspamd_map *map; guint flags = RSPAMD_HTTP_CLIENT_SIMPLE|RSPAMD_HTTP_CLIENT_SHARED; map = cbd->map; if (reply->code == RDNS_RC_NOERROR) { /* * We just get the first address hoping that a resolver performs * round-robin rotation well */ if (cbd->addr == NULL) { cbd->addr = rspamd_inet_address_from_rnds (reply->entries); if (cbd->addr != NULL) { rspamd_inet_address_set_port (cbd->addr, cbd->data->port); /* Try to open a socket */ cbd->fd = rspamd_inet_address_connect (cbd->addr, SOCK_STREAM, TRUE); if (cbd->fd != -1) { cbd->stage = map_load_file; cbd->conn = rspamd_http_connection_new (NULL, http_map_error, http_map_finish, flags, RSPAMD_HTTP_CLIENT, NULL, cbd->map->cfg->libs_ctx->ssl_ctx); write_http_request (cbd); } else { rspamd_inet_address_destroy (cbd->addr); cbd->addr = NULL; } } } } else if (cbd->stage < map_load_file) { if (cbd->stage == map_resolve_host2) { /* We have still one request pending */ cbd->stage = map_resolve_host1; } else { /* We could not resolve host, so cowardly fail here */ msg_err_map ("cannot resolve %s", cbd->data->host); } } MAP_RELEASE (cbd, "http_callback_data"); }
/** * Async HTTP callback */ static void http_callback (gint fd, short what, void *ud) { struct rspamd_map *map = ud; struct http_map_data *data; gint sock; struct http_callback_data *cbd; rspamd_mempool_t *pool; data = map->map_data; pool = map->pool; if (g_atomic_int_get (map->locked)) { msg_info_pool ( "don't try to reread map as it is locked by other process, will reread it later"); if (data->conn->ud == NULL) { jitter_timeout_event (map, TRUE, TRUE); } else { jitter_timeout_event (map, TRUE, FALSE); } return; } g_atomic_int_inc (map->locked); jitter_timeout_event (map, FALSE, FALSE); /* Connect asynced */ if ((sock = connect_http (map, data, TRUE)) == -1) { g_atomic_int_set (map->locked, 0); return; } else { /* Plan event */ cbd = g_slice_alloc (sizeof (struct http_callback_data)); cbd->ev_base = map->ev_base; cbd->map = map; cbd->data = data; cbd->remain_buf = NULL; cbd->cbdata.state = 0; cbd->cbdata.prev_data = *cbd->map->user_data; cbd->cbdata.cur_data = NULL; cbd->cbdata.map = cbd->map; cbd->tv.tv_sec = HTTP_CONNECT_TIMEOUT; cbd->tv.tv_usec = 0; cbd->fd = sock; data->conn->ud = cbd; msg_debug_pool ("reading map data from %s", data->host); write_http_request (cbd); } }
static int http_map_finish (struct rspamd_http_connection *conn, struct rspamd_http_message *msg) { struct http_callback_data *cbd = conn->ud; struct rspamd_map *map; rspamd_mempool_t *pool; char fpath[PATH_MAX]; guchar *aux_data, *in = NULL; gsize inlen = 0; struct stat st; map = cbd->map; pool = cbd->map->pool; if (msg->code == 200) { if (cbd->stage == map_load_file) { if (msg->last_modified) { cbd->data->last_checked = msg->last_modified; } else { cbd->data->last_checked = msg->date; } /* Maybe we need to check signature ? */ if (map->is_signed) { close (cbd->out_fd); if (map->trusted_pubkey) { /* No need to load key */ cbd->stage = map_load_signature; cbd->pk = rspamd_pubkey_ref (map->trusted_pubkey); rspamd_snprintf (fpath, sizeof (fpath), "%s.sig", cbd->tmpfile); } else { rspamd_snprintf (fpath, sizeof (fpath), "%s.pub", cbd->tmpfile); cbd->stage = map_load_pubkey; } cbd->out_fd = rspamd_file_xopen (fpath, O_RDWR|O_CREAT, 00644); if (cbd->out_fd == -1) { msg_err_pool ("cannot open pubkey file %s for writing: %s", fpath, strerror (errno)); goto end; } rspamd_http_connection_reset (cbd->conn); write_http_request (cbd); goto end; } else { /* Unsinged version - just open file */ in = rspamd_file_xmap (cbd->tmpfile, PROT_READ, &inlen); if (in == NULL) { msg_err_pool ("cannot read tempfile %s: %s", cbd->tmpfile, strerror (errno)); goto end; } } } else if (cbd->stage == map_load_pubkey) { /* We now can load pubkey */ (void)lseek (cbd->out_fd, 0, SEEK_SET); if (fstat (cbd->out_fd, &st) == -1) { msg_err_pool ("cannot stat pubkey file %s: %s", fpath, strerror (errno)); goto end; } aux_data = mmap (NULL, st.st_size, PROT_READ, MAP_SHARED, cbd->out_fd, 0); close (cbd->out_fd); cbd->out_fd = -1; if (aux_data == MAP_FAILED) { msg_err_pool ("cannot map pubkey file %s: %s", fpath, strerror (errno)); goto end; } cbd->pk = rspamd_pubkey_from_base32 (aux_data, st.st_size, RSPAMD_KEYPAIR_SIGN, RSPAMD_CRYPTOBOX_MODE_25519); munmap (aux_data, st.st_size); if (cbd->pk == NULL) { msg_err_pool ("cannot load pubkey file %s: bad pubkey", fpath); goto end; } rspamd_snprintf (fpath, sizeof (fpath), "%s.sig", cbd->tmpfile); cbd->out_fd = rspamd_file_xopen (fpath, O_RDWR|O_CREAT, 00644); if (cbd->out_fd == -1) { msg_err_pool ("cannot open signature file %s for writing: %s", fpath, strerror (errno)); goto end; } cbd->stage = map_load_signature; rspamd_http_connection_reset (cbd->conn); write_http_request (cbd); goto end; } else if (cbd->stage == map_load_signature) { /* We can now check signature */ close (cbd->out_fd); cbd->out_fd = -1; in = rspamd_file_xmap (cbd->tmpfile, PROT_READ, &inlen); if (in == NULL) { msg_err_pool ("cannot read tempfile %s: %s", cbd->tmpfile, strerror (errno)); goto end; } if (!rspamd_map_check_sig_pk (cbd->tmpfile, map, in, inlen, cbd->pk)) { goto end; } } g_assert (in != NULL); map->read_callback (map->pool, in, inlen, &cbd->cbdata, TRUE); map->fin_callback (map->pool, &cbd->cbdata); *map->user_data = cbd->cbdata.cur_data; msg_info_pool ("read map data from %s", cbd->data->host); } else if (msg->code == 304 && cbd->stage == map_load_file) { msg_debug_pool ("data is not modified for server %s", cbd->data->host); if (msg->last_modified) { cbd->data->last_checked = msg->last_modified; } else { cbd->data->last_checked = msg->date; } } else { msg_info_pool ("cannot load map %s from %s: HTTP error %d", map->uri, cbd->data->host, msg->code); } end: REF_RELEASE (cbd); return 0; }
static int http_map_finish (struct rspamd_http_connection *conn, struct rspamd_http_message *msg) { struct http_callback_data *cbd = conn->ud; struct rspamd_map *map; struct rspamd_map_backend *bk; guchar *aux_data, *in = NULL; gsize inlen = 0, dlen = 0; map = cbd->map; bk = cbd->bk; if (msg->code == 200) { if (cbd->check) { cbd->periodic->need_modify = TRUE; /* Reset the whole chain */ cbd->periodic->cur_backend = 0; rspamd_map_periodic_callback (-1, EV_TIMEOUT, cbd->periodic); MAP_RELEASE (cbd, "http_callback_data"); return 0; } if (cbd->stage == map_load_file) { if (msg->last_modified) { cbd->data->last_checked = msg->last_modified; } else { cbd->data->last_checked = msg->date; } /* Maybe we need to check signature ? */ if (bk->is_signed) { if (bk->trusted_pubkey) { /* No need to load key */ cbd->stage = map_load_signature; cbd->pk = rspamd_pubkey_ref (bk->trusted_pubkey); } else { cbd->stage = map_load_pubkey; } cbd->shmem_data = rspamd_http_message_shmem_ref (msg); cbd->data_len = msg->body_buf.len; rspamd_http_connection_reset (cbd->conn); write_http_request (cbd); MAP_RELEASE (cbd, "http_callback_data"); return 0; } else { /* Unsinged version - just open file */ cbd->shmem_data = rspamd_http_message_shmem_ref (msg); cbd->data_len = msg->body_buf.len; goto read_data; } } else if (cbd->stage == map_load_pubkey) { /* We now can load pubkey */ cbd->shmem_pubkey = rspamd_http_message_shmem_ref (msg); cbd->pubkey_len = msg->body_buf.len; aux_data = rspamd_shmem_xmap (cbd->shmem_pubkey->shm_name, PROT_READ, &inlen); if (aux_data == NULL) { msg_err_map ("cannot map pubkey file %s: %s", cbd->shmem_pubkey->shm_name, strerror (errno)); goto err; } if (inlen < cbd->pubkey_len) { msg_err_map ("cannot map pubkey file %s: %s", cbd->shmem_pubkey->shm_name, strerror (errno)); munmap (aux_data, inlen); goto err; } cbd->pk = rspamd_pubkey_from_base32 (aux_data, cbd->pubkey_len, RSPAMD_KEYPAIR_SIGN, RSPAMD_CRYPTOBOX_MODE_25519); munmap (aux_data, inlen); if (cbd->pk == NULL) { msg_err_map ("cannot load pubkey file %s: bad pubkey", cbd->shmem_pubkey->shm_name); goto err; } cbd->stage = map_load_signature; rspamd_http_connection_reset (cbd->conn); write_http_request (cbd); MAP_RELEASE (cbd, "http_callback_data"); return 0; } else if (cbd->stage == map_load_signature) { /* We can now check signature */ cbd->shmem_sig = rspamd_http_message_shmem_ref (msg); cbd->sig_len = msg->body_buf.len; aux_data = rspamd_shmem_xmap (cbd->shmem_sig->shm_name, PROT_READ, &inlen); if (aux_data == NULL) { msg_err_map ("cannot map signature file %s: %s", cbd->shmem_sig->shm_name, strerror (errno)); goto err; } if (inlen < cbd->sig_len) { msg_err_map ("cannot map pubkey file %s: %s", cbd->shmem_pubkey->shm_name, strerror (errno)); munmap (aux_data, inlen); goto err; } in = rspamd_shmem_xmap (cbd->shmem_data->shm_name, PROT_READ, &dlen); if (in == NULL) { msg_err_map ("cannot read tempfile %s: %s", cbd->shmem_data->shm_name, strerror (errno)); munmap (aux_data, inlen); goto err; } if (!rspamd_map_check_sig_pk_mem (aux_data, cbd->sig_len, map, in, cbd->data_len, cbd->pk)) { munmap (aux_data, inlen); munmap (in, dlen); goto err; } munmap (in, dlen); } read_data: g_assert (cbd->shmem_data != NULL); in = rspamd_shmem_xmap (cbd->shmem_data->shm_name, PROT_READ, &dlen); if (in == NULL) { msg_err_map ("cannot read tempfile %s: %s", cbd->shmem_data->shm_name, strerror (errno)); goto err; } map->read_callback (in, cbd->data_len, &cbd->periodic->cbdata, TRUE); msg_info_map ("read map data from %s", cbd->data->host); /* * We know that a map is in the locked state */ if (g_atomic_int_compare_and_exchange (&map->cache->available, 0, 1)) { /* Store cached data */ struct rspamd_http_map_cached_cbdata *cache_cbd; struct timeval tv; rspamd_strlcpy (map->cache->shmem_name, cbd->shmem_data->shm_name, sizeof (map->cache->shmem_name)); map->cache->len = cbd->data_len; map->cache->last_checked = cbd->data->last_checked; cache_cbd = g_slice_alloc0 (sizeof (*cache_cbd)); cache_cbd->shm = cbd->shmem_data; cache_cbd->map = map; MAP_RETAIN (cache_cbd->shm, "shmem_data"); event_set (&cache_cbd->timeout, -1, EV_TIMEOUT, rspamd_map_cache_cb, cache_cbd); event_base_set (cbd->ev_base, &cache_cbd->timeout); double_to_tv (map->poll_timeout, &tv); event_add (&cache_cbd->timeout, &tv); } cbd->periodic->cur_backend ++; munmap (in, dlen); rspamd_map_periodic_callback (-1, EV_TIMEOUT, cbd->periodic); } else if (msg->code == 304 && (cbd->check && cbd->stage == map_load_file)) { msg_debug_map ("data is not modified for server %s", cbd->data->host); if (msg->last_modified) { cbd->data->last_checked = msg->last_modified; } else { cbd->data->last_checked = msg->date; } cbd->periodic->cur_backend ++; rspamd_map_periodic_callback (-1, EV_TIMEOUT, cbd->periodic); } else { msg_info_map ("cannot load map %s from %s: HTTP error %d", bk->uri, cbd->data->host, msg->code); } MAP_RELEASE (cbd, "http_callback_data"); return 0; err: cbd->periodic->errored = 1; rspamd_map_periodic_callback (-1, EV_TIMEOUT, cbd->periodic); MAP_RELEASE (cbd, "http_callback_data"); return 0; }