diff options
| -rw-r--r-- | src/sync/sync-httpd_config.c | 70 |
1 files changed, 54 insertions, 16 deletions
diff --git a/src/sync/sync-httpd_config.c b/src/sync/sync-httpd_config.c index 886f2af..c1c40ca 100644 --- a/src/sync/sync-httpd_config.c +++ b/src/sync/sync-httpd_config.c @@ -1,6 +1,6 @@ /* This file is part of Sync - Copyright (C) 2020 Taler Systems SA + Copyright (C) 2020,2024 Taler Systems SA Sync is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software @@ -38,21 +38,59 @@ SH_handler_config (struct SH_RequestHandler *rh, const char *upload_data, size_t *upload_data_size) { - return TALER_MHD_REPLY_JSON_PACK ( - connection, - MHD_HTTP_OK, - GNUNET_JSON_pack_string ("name", - "sync"), - GNUNET_JSON_pack_string ("implementation", - "urn:net:taler:specs:sync:c-reference"), - GNUNET_JSON_pack_uint64 ("storage_limit_in_megabytes", - SH_upload_limit_mb), - TALER_JSON_pack_amount ("liability_limit", - &SH_insurance), - TALER_JSON_pack_amount ("annual_fee", - &SH_annual_fee), - GNUNET_JSON_pack_string ("version", - "2:1:0")); + static struct MHD_Response *response; + static struct GNUNET_TIME_Absolute a; + + (void) connection_cls; + (void) upload_data; + (void) upload_data_size; + if ( (GNUNET_TIME_absolute_is_past (a)) && + (NULL != response) ) + { + MHD_destroy_response (response); + response = NULL; + } + if (NULL == response) + { + struct GNUNET_TIME_Timestamp km; + char dat[128]; + + a = GNUNET_TIME_relative_to_absolute (GNUNET_TIME_UNIT_DAYS); + /* Round up to next full day to ensure the expiration + time does not become a fingerprint! */ + a = GNUNET_TIME_absolute_round_down (a, + GNUNET_TIME_UNIT_DAYS); + a = GNUNET_TIME_absolute_add (a, + GNUNET_TIME_UNIT_DAYS); + /* => /config response stays at most 48h in caches! */ + km = GNUNET_TIME_absolute_to_timestamp (a); + TALER_MHD_get_date_string (km.abs_time, + dat); + response = TALER_MHD_MAKE_JSON_PACK ( + GNUNET_JSON_pack_string ("name", + "sync"), + GNUNET_JSON_pack_string ("implementation", + "urn:net:taler:specs:sync:c-reference"), + GNUNET_JSON_pack_uint64 ("storage_limit_in_megabytes", + SH_upload_limit_mb), + TALER_JSON_pack_amount ("liability_limit", + &SH_insurance), + TALER_JSON_pack_amount ("annual_fee", + &SH_annual_fee), + GNUNET_JSON_pack_string ("version", + "2:2:0")); + GNUNET_break (MHD_YES == + MHD_add_response_header (response, + MHD_HTTP_HEADER_EXPIRES, + dat)); + GNUNET_break (MHD_YES == + MHD_add_response_header (response, + MHD_HTTP_HEADER_CACHE_CONTROL, + "public,max-age=21600")); /* 6h */ + } + return MHD_queue_response (connection, + MHD_HTTP_OK, + response); } |