/** * Write HTTP request */ static void write_http_request (struct http_callback_data *cbd) { gchar datebuf[128]; struct rspamd_http_message *msg; struct rspamd_map *map; map = cbd->map; if (cbd->fd != -1) { close (cbd->fd); } cbd->fd = rspamd_inet_address_connect (cbd->addr, SOCK_STREAM, TRUE); if (cbd->fd != -1) { msg = rspamd_http_new_message (HTTP_REQUEST); if (cbd->bk->protocol == MAP_PROTO_HTTPS) { msg->flags |= RSPAMD_HTTP_FLAG_SSL; } if (cbd->check) { msg->method = HTTP_HEAD; } if (cbd->stage == map_load_file) { msg->url = rspamd_fstring_new_init (cbd->data->path, strlen (cbd->data->path)); if (cbd->check && cbd->data->last_checked != 0 && cbd->stage == map_load_file) { rspamd_http_date_format (datebuf, sizeof (datebuf), cbd->data->last_checked); rspamd_http_message_add_header (msg, "If-Modified-Since", datebuf); } } else if (cbd->stage == map_load_pubkey) { msg->url = rspamd_fstring_new_init (cbd->data->path, strlen (cbd->data->path)); msg->url = rspamd_fstring_append (msg->url, ".pub", 4); } else if (cbd->stage == map_load_signature) { msg->url = rspamd_fstring_new_init (cbd->data->path, strlen (cbd->data->path)); msg->url = rspamd_fstring_append (msg->url, ".sig", 4); } else { g_assert_not_reached (); } rspamd_http_connection_write_message (cbd->conn, msg, cbd->data->host, NULL, cbd, cbd->fd, &cbd->tv, cbd->ev_base); MAP_RETAIN (cbd, "http_callback_data"); } else { msg_err_map ("cannot connect to %s: %s", cbd->data->host, strerror (errno)); cbd->periodic->errored = TRUE; } }
/** * Async HTTP callback */ static void rspamd_map_common_http_callback (struct rspamd_map *map, struct rspamd_map_backend *bk, struct map_periodic_cbdata *periodic, gboolean check) { struct http_map_data *data; struct http_callback_data *cbd; data = bk->data.hd; if (g_atomic_int_get (&map->cache->available) == 1) { /* Read cached data */ if (check) { if (data->last_checked < map->cache->last_checked) { periodic->need_modify = TRUE; /* Reset the whole chain */ periodic->cur_backend = 0; rspamd_map_periodic_callback (-1, EV_TIMEOUT, periodic); } return; } else if (rspamd_map_read_cached (map, periodic, data->host)) { /* Switch to the next backend */ periodic->cur_backend ++; rspamd_map_periodic_callback (-1, EV_TIMEOUT, periodic); data->last_checked = map->cache->last_checked; return; } } cbd = g_slice_alloc0 (sizeof (struct http_callback_data)); cbd->ev_base = map->ev_base; cbd->map = map; cbd->data = data; cbd->fd = -1; cbd->check = check; cbd->periodic = periodic; MAP_RETAIN (periodic, "periodic"); cbd->bk = bk; MAP_RETAIN (bk, "rspamd_map_backend"); cbd->stage = map_resolve_host2; double_to_tv (map->cfg->map_timeout, &cbd->tv); REF_INIT_RETAIN (cbd, free_http_cbdata); msg_debug_map ("%s map data from %s", check ? "checking" : "reading", data->host); /* Send both A and AAAA requests */ if (map->r->r) { if (rdns_make_request_full (map->r->r, rspamd_map_dns_callback, cbd, map->cfg->dns_timeout, map->cfg->dns_retransmits, 1, data->host, RDNS_REQUEST_A)) { MAP_RETAIN (cbd, "http_callback_data"); } if (rdns_make_request_full (map->r->r, rspamd_map_dns_callback, cbd, map->cfg->dns_timeout, map->cfg->dns_retransmits, 1, data->host, RDNS_REQUEST_AAAA)) { MAP_RETAIN (cbd, "http_callback_data"); } map->dtor = free_http_cbdata_dtor; map->dtor_data = cbd; } else { msg_warn_map ("cannot load map: DNS resolver is not initialized"); cbd->periodic->errored = TRUE; } /* We don't need own ref as it is now ref counted by DNS handlers */ MAP_RELEASE (cbd, "http_callback_data"); }
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; }
/** * Async HTTP callback */ static void rspamd_map_common_http_callback (struct rspamd_map *map, struct rspamd_map_backend *bk, struct map_periodic_cbdata *periodic, gboolean check) { struct http_map_data *data; struct http_callback_data *cbd; gchar tmpbuf[PATH_MAX]; data = bk->data.hd; cbd = g_slice_alloc0 (sizeof (struct http_callback_data)); rspamd_snprintf (tmpbuf, sizeof (tmpbuf), "%s" G_DIR_SEPARATOR_S "rspamd_map%d-XXXXXX", map->cfg->temp_dir, map->id); cbd->out_fd = mkstemp (tmpbuf); if (cbd->out_fd == -1) { msg_err_map ("cannot create tempfile: %s", strerror (errno)); g_atomic_int_set (map->locked, 0); g_slice_free1 (sizeof (*cbd), cbd); periodic->errored = TRUE; rspamd_map_periodic_callback (-1, EV_TIMEOUT, periodic); return; } cbd->tmpfile = g_strdup (tmpbuf); cbd->ev_base = map->ev_base; cbd->map = map; cbd->data = data; cbd->fd = -1; cbd->check = check; cbd->periodic = periodic; MAP_RETAIN (periodic); cbd->bk = bk; MAP_RETAIN (bk); cbd->stage = map_resolve_host2; double_to_tv (map->cfg->map_timeout, &cbd->tv); REF_INIT_RETAIN (cbd, free_http_cbdata); msg_debug_map ("%s map data from %s", check ? "checking" : "reading", data->host); /* Send both A and AAAA requests */ if (map->r->r) { if (rdns_make_request_full (map->r->r, rspamd_map_dns_callback, cbd, map->cfg->dns_timeout, map->cfg->dns_retransmits, 1, data->host, RDNS_REQUEST_A)) { MAP_RETAIN (cbd); } if (rdns_make_request_full (map->r->r, rspamd_map_dns_callback, cbd, map->cfg->dns_timeout, map->cfg->dns_retransmits, 1, data->host, RDNS_REQUEST_AAAA)) { MAP_RETAIN (cbd); } map->dtor = free_http_cbdata_dtor; map->dtor_data = cbd; } else { msg_warn_map ("cannot load map: DNS resolver is not initialized"); cbd->periodic->errored = TRUE; } /* We don't need own ref as it is now ref counted by DNS handlers */ MAP_RELEASE (cbd); }