diff options
Diffstat (limited to 'src/mhd/mhd_legal.c')
-rw-r--r-- | src/mhd/mhd_legal.c | 119 |
1 files changed, 108 insertions, 11 deletions
diff --git a/src/mhd/mhd_legal.c b/src/mhd/mhd_legal.c index 2ef36957d..8353a6901 100644 --- a/src/mhd/mhd_legal.c +++ b/src/mhd/mhd_legal.c @@ -1,6 +1,6 @@ /* This file is part of TALER - Copyright (C) 2019, 2020 Taler Systems SA + Copyright (C) 2019, 2020, 2022, 2024 Taler Systems SA TALER is free software; you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software @@ -27,6 +27,11 @@ #include "taler_util.h" #include "taler_mhd_lib.h" +/** + * How long should browsers/proxies cache the "legal" replies? + */ +#define MAX_TERMS_CACHING GNUNET_TIME_UNIT_DAYS + /** * Entry in the terms-of-service array. @@ -121,10 +126,18 @@ mime_matches (const char *accept_pattern, { const char *da = strchr (accept_pattern, '/'); const char *dm = strchr (mime, '/'); + const char *end; if ( (NULL == da) || (NULL == dm) ) return (0 == strcmp ("*", accept_pattern)); + // FIXME: use TALER_MHD_check_accept() here! + /* FIXME: eventually, we might want to parse the "q=$FLOAT" + part after the ';' and figure out which one is the + best/preferred match instead of returning a boolean... */ + end = strchr (da, ';'); + if (NULL == end) + end = &da[strlen (da)]; return ( ( (1 == da - accept_pattern) && ('*' == *accept_pattern) ) || @@ -133,8 +146,9 @@ mime_matches (const char *accept_pattern, mime, da - accept_pattern)) ) ) && ( (0 == strcmp (da, "/*")) || - (0 == strcasecmp (da, - dm)) ); + (0 == strncasecmp (da, + dm, + end - da)) ); } @@ -145,9 +159,9 @@ TALER_MHD_xmime_matches (const char *accept_pattern, char *ap = GNUNET_strdup (accept_pattern); char *sptr; - for (const char *tok = strtok_r (ap, ";", &sptr); + for (const char *tok = strtok_r (ap, ",", &sptr); NULL != tok; - tok = strtok_r (NULL, ";", &sptr)) + tok = strtok_r (NULL, ",", &sptr)) { if (mime_matches (tok, mime)) @@ -167,7 +181,25 @@ TALER_MHD_reply_legal (struct MHD_Connection *conn, { struct MHD_Response *resp; struct Terms *t; - + struct GNUNET_TIME_Absolute a; + struct GNUNET_TIME_Timestamp m; + char dat[128]; + char *langs; + + a = GNUNET_TIME_relative_to_absolute (MAX_TERMS_CACHING); + m = GNUNET_TIME_absolute_to_timestamp (a); + /* Round up to next full day to ensure the expiration + time does not become a fingerprint! */ + a = GNUNET_TIME_absolute_round_down (a, + MAX_TERMS_CACHING); + a = GNUNET_TIME_absolute_add (a, + MAX_TERMS_CACHING); + TALER_MHD_get_date_string (m.abs_time, + dat); + GNUNET_log (GNUNET_ERROR_TYPE_INFO, + "Setting '%s' header to '%s'\n", + MHD_HTTP_HEADER_EXPIRES, + dat); if (NULL != legal) { const char *etag; @@ -186,6 +218,15 @@ TALER_MHD_reply_legal (struct MHD_Connection *conn, NULL, MHD_RESPMEM_PERSISTENT); TALER_MHD_add_global_headers (resp); + GNUNET_break (MHD_YES == + MHD_add_response_header (resp, + MHD_HTTP_HEADER_EXPIRES, + dat)); + + GNUNET_break (MHD_YES == + MHD_add_response_header (resp, + MHD_HTTP_HEADER_ETAG, + legal->terms_etag)); ret = MHD_queue_response (conn, MHD_HTTP_NOT_MODIFIED, resp); @@ -196,6 +237,7 @@ TALER_MHD_reply_legal (struct MHD_Connection *conn, } t = NULL; + langs = NULL; if (NULL != legal) { const char *mime; @@ -205,7 +247,7 @@ TALER_MHD_reply_legal (struct MHD_Connection *conn, MHD_HEADER_KIND, MHD_HTTP_HEADER_ACCEPT); if (NULL == mime) - mime = "text/html"; + mime = "text/plain"; lang = MHD_lookup_connection_value (conn, MHD_HEADER_KIND, MHD_HTTP_HEADER_ACCEPT_LANGUAGE); @@ -221,6 +263,21 @@ TALER_MHD_reply_legal (struct MHD_Connection *conn, (TALER_MHD_xmime_matches (mime, p->mime_type)) ) { + if (NULL == langs) + { + langs = GNUNET_strdup (p->language); + } + else if (NULL == strstr (langs, + p->language)) + { + char *tmp = langs; + + GNUNET_asprintf (&langs, + "%s,%s", + tmp, + p->language); + GNUNET_free (tmp); + } if ( (NULL == t) || (! TALER_MHD_xmime_matches (mime, t->mime_type)) || @@ -278,6 +335,30 @@ TALER_MHD_reply_legal (struct MHD_Connection *conn, MHD_RESPMEM_PERSISTENT); } TALER_MHD_add_global_headers (resp); + GNUNET_break (MHD_YES == + MHD_add_response_header (resp, + MHD_HTTP_HEADER_EXPIRES, + dat)); + if (NULL != langs) + { + GNUNET_break (MHD_YES == + MHD_add_response_header (resp, + "Avail-Languages", + langs)); + GNUNET_free (langs); + } + /* Set cache control headers: our response varies depending on these headers */ + GNUNET_break (MHD_YES == + MHD_add_response_header (resp, + MHD_HTTP_HEADER_VARY, + MHD_HTTP_HEADER_ACCEPT_LANGUAGE "," + MHD_HTTP_HEADER_ACCEPT "," + MHD_HTTP_HEADER_ACCEPT_ENCODING)); + /* Information is always public, revalidate after 10 days */ + GNUNET_break (MHD_YES == + MHD_add_response_header (resp, + MHD_HTTP_HEADER_CACHE_CONTROL, + "public,max-age=864000")); if (NULL != legal) GNUNET_break (MHD_YES == MHD_add_response_header (resp, @@ -287,6 +368,10 @@ TALER_MHD_reply_legal (struct MHD_Connection *conn, MHD_add_response_header (resp, MHD_HTTP_HEADER_CONTENT_TYPE, t->mime_type)); + GNUNET_break (MHD_YES == + MHD_add_response_header (resp, + MHD_HTTP_HEADER_CONTENT_LANGUAGE, + t->language)); { MHD_RESULT ret; @@ -320,9 +405,10 @@ load_terms (struct TALER_MHD_Legal *legal, const char *mime; unsigned int priority; } mm[] = { + { .ext = ".txt", .mime = "text/plain", .priority = 150 }, { .ext = ".html", .mime = "text/html", .priority = 100 }, { .ext = ".htm", .mime = "text/html", .priority = 99 }, - { .ext = ".txt", .mime = "text/plain", .priority = 50 }, + { .ext = ".md", .mime = "text/markdown", .priority = 50 }, { .ext = ".pdf", .mime = "application/pdf", .priority = 25 }, { .ext = ".jpg", .mime = "image/jpeg" }, { .ext = ".jpeg", .mime = "image/jpeg" }, @@ -350,7 +436,7 @@ load_terms (struct TALER_MHD_Legal *legal, name, ext - name - 1)) ) { - GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Filename `%s' does not match Etag `%s' in directory `%s/%s'. Ignoring it.\n", name, legal->terms_etag, @@ -415,6 +501,9 @@ load_terms (struct TALER_MHD_Legal *legal, GNUNET_free (fn); return; } + GNUNET_log (GNUNET_ERROR_TYPE_INFO, + "Loading legal information from file `%s'\n", + fn); { void *buf; size_t bsize; @@ -515,7 +604,10 @@ load_language (struct TALER_MHD_Legal *legal, if (fn[0] == '.') continue; - load_terms (legal, path, lang, fn); + load_terms (legal, + path, + lang, + fn); } GNUNET_break (0 == closedir (d)); GNUNET_free (dname); @@ -578,7 +670,12 @@ TALER_MHD_legal_load (const struct GNUNET_CONFIGURATION_Handle *cfg, if (lang[0] == '.') continue; - load_language (legal, path, lang); + if (0 == strcmp (lang, + "locale")) + continue; + load_language (legal, + path, + lang); } GNUNET_break (0 == closedir (d)); GNUNET_free (path); |