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Configuration for Cache-Control: max-age

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Experimental configuration option "_experimental_static_file_max_age" for tests.
TODO: rename this option and documetent it in UserManual.md

This also addresses the "Caching" issue of #201
This commit is contained in:
bel
2016-03-13 21:29:48 +01:00
parent bfc6dfe52b
commit 23f02df8fd
1 changed files with 9 additions and 5 deletions
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14
src/civetweb.c
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@@ -1097,8 +1097,9 @@ enum {
#endif #endif
ACCESS_CONTROL_ALLOW_ORIGIN, ACCESS_CONTROL_ALLOW_ORIGIN,
ERROR_PAGES, ERROR_PAGES,
CONFIG_TCP_NODELAY, /* Prepended CONFIG_ to avoid conflict with the socket CONFIG_TCP_NODELAY, /* Prepended CONFIG_ to avoid conflict with the
option typedef TCP_NODELAY */ * socket option typedef TCP_NODELAY. */
STATIC_FILE_MAX_AGE,
NUM_OPTIONS NUM_OPTIONS
}; };
@@ -1169,6 +1170,9 @@ static struct mg_option config_options[] = {
{"access_control_allow_origin", CONFIG_TYPE_STRING, "*"}, {"access_control_allow_origin", CONFIG_TYPE_STRING, "*"},
{"error_pages", CONFIG_TYPE_DIRECTORY, NULL}, {"error_pages", CONFIG_TYPE_DIRECTORY, NULL},
{"tcp_nodelay", CONFIG_TYPE_NUMBER, "0"}, {"tcp_nodelay", CONFIG_TYPE_NUMBER, "0"},
{"_experimental_static_file_max_age",
CONFIG_TYPE_NUMBER,
"3600"}, /* TODO: redefine parameter */
{NULL, CONFIG_TYPE_UNKNOWN, NULL}}; {NULL, CONFIG_TYPE_UNKNOWN, NULL}};
@@ -2172,13 +2176,13 @@ send_no_cache_header(struct mg_connection *conn)
static int static int
send_static_cache_header(struct mg_connection *conn) send_static_cache_header(struct mg_connection *conn)
{ {
/* TODO: Get max age (in seconds) for static files from conn->ctx */ int max_age = atoi(conn->ctx->config[STATIC_FILE_MAX_AGE]);
int max_age = 60 /* + conn->ctx.TODO */;
if (max_age <= 0) { if (max_age <= 0) {
return send_no_cache_header(conn); return send_no_cache_header(conn);
} }
/* Use "Cache-Control: max-age" instead of "Expires" header.
* Reason: see https://www.mnot.net/blog/2007/05/15/expires_max-age */
return mg_printf(conn, "Cache-Control: max-age=%u\r\n", max_age); return mg_printf(conn, "Cache-Control: max-age=%u\r\n", max_age);
} }