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| author | Christian Grothoff <christian@grothoff.org> | 2022-05-17 14:30:58 +0200 |
|---|---|---|
| committer | Christian Grothoff <christian@grothoff.org> | 2022-05-17 14:30:58 +0200 |
| commit | 5e06f842dd09f44f94801ec463717e370531c406 (patch) | |
| tree | 787131cb5d96585b7ef134c248cd57b3cb8aadb5 | |
| parent | b9d0b1aae47ddbc8928e8c4d5a0188da91fc7735 (diff) | |
add ETag to /keys response
| -rw-r--r-- | src/exchange/taler-exchange-httpd_keys.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/exchange/taler-exchange-httpd_keys.c b/src/exchange/taler-exchange-httpd_keys.c index dea29f7d0..a1de10cfd 100644 --- a/src/exchange/taler-exchange-httpd_keys.c +++ b/src/exchange/taler-exchange-httpd_keys.c @@ -1918,6 +1918,7 @@ create_krd (struct TEH_KeyStateHandle *ksh, void *keys_jsonz; size_t keys_jsonz_size; int comp; + char etag[sizeof (struct GNUNET_HashCode) * 2]; /* Convert /keys response to UTF8-String */ keys_json = json_dumps (keys, @@ -1929,6 +1930,21 @@ create_krd (struct TEH_KeyStateHandle *ksh, keys_jsonz = GNUNET_strdup (keys_json); keys_jsonz_size = strlen (keys_json); + /* hash to compute etag */ + { + struct GNUNET_HashCode ehash; + char *end; + + GNUNET_CRYPTO_hash (keys_jsonz, + keys_jsonz_size, + &ehash); + end = GNUNET_STRINGS_data_to_string (&ehash, + sizeof (ehash), + etag, + sizeof (etag)); + *end = '\0'; + } + /* Create uncompressed response */ krd.response_uncompressed = MHD_create_response_from_buffer (keys_jsonz_size, @@ -1938,6 +1954,10 @@ create_krd (struct TEH_KeyStateHandle *ksh, GNUNET_assert (GNUNET_OK == setup_general_response_headers (ksh, krd.response_uncompressed)); + GNUNET_break (MHD_YES == + MHD_add_response_header (krd.response_uncompressed, + MHD_HTTP_HEADER_ETAG, + etag)); /* Also compute compressed version of /keys response */ comp = TALER_MHD_body_compress (&keys_jsonz, &keys_jsonz_size); @@ -1956,6 +1976,10 @@ create_krd (struct TEH_KeyStateHandle *ksh, GNUNET_assert (GNUNET_OK == setup_general_response_headers (ksh, krd.response_compressed)); + GNUNET_break (MHD_YES == + MHD_add_response_header (krd.response_compressed, + MHD_HTTP_HEADER_ETAG, + etag)); } krd.cherry_pick_date = last_cpd; GNUNET_array_append (ksh->krd_array, |