diff options
Diffstat (limited to 'tileserver/tileserver.c')
| -rw-r--r-- | tileserver/tileserver.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/tileserver/tileserver.c b/tileserver/tileserver.c index 654bc0b32..d325f6127 100644 --- a/tileserver/tileserver.c +++ b/tileserver/tileserver.c @@ -7,7 +7,7 @@ * */ -static const char rcsid[] = "$Id: tileserver.c,v 1.7 2006-09-20 16:34:21 chris Exp $"; +static const char rcsid[] = "$Id: tileserver.c,v 1.8 2006-09-20 16:38:29 chris Exp $"; /* * This is slightly complicated by the fact that we indirect tile references @@ -214,6 +214,7 @@ void handle_request(void) { struct tm *tm; char date[32]; const char *last_modified = "Wed, 20 Sep 2006 17:27:40 GMT"; + const unsigned cache_max_age = 365 * 86400; /* Date: header is required if we give a 304 Not Modified response. */ time(&now); @@ -246,6 +247,9 @@ void handle_request(void) { return; } + /* XXX this is poor -- if the client sends If-Modified-Since: we just + * assume that it hasn't been. We might want to do something more clever at + * some point. */ if (getenv("HTTP_IF_MODIFIED_SINCE")) { printf( "Status: 304 Not Modified\r\n" @@ -267,7 +271,9 @@ void handle_request(void) { "Content-Type: image/png\r\n" "Content-Length: %u\r\n" "Last-Modified: %s\r\n" - "\r\n", len, last_modified); + "Date: %s\r\n" + "Cache-Control: max-age=%u\r\n" + "\r\n", len, last_modified, date, cache_max_age); fwrite(buf, 1, len, stdout); xfree(buf); } else @@ -476,8 +482,10 @@ void handle_request(void) { printf("\r\n" "Content-Length: %u\r\n" "Last-Modified: %s\r\n" + "Date: %s\r\n" + "Cache-Control: max-age=%u\r\n" "\r\n", - (unsigned)(p - buf), last_modified); + (unsigned)(p - buf), last_modified, date, cache_max_age); fwrite(buf, 1, p - buf, stdout); } |