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Diffstat (limited to '')
| -rw-r--r-- | sca-cpp/trunk/modules/http/httpd.hpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sca-cpp/trunk/modules/http/httpd.hpp b/sca-cpp/trunk/modules/http/httpd.hpp index bd0e23f76b..dfc3dcc47e 100644 --- a/sca-cpp/trunk/modules/http/httpd.hpp +++ b/sca-cpp/trunk/modules/http/httpd.hpp @@ -213,10 +213,18 @@ const failable<int> writeResult(const failable<list<string> >& ls, const string& const string ob(str(os)); debug(ob, "httpd::result"); + // Make sure browsers come back and check for updated dynamic content + apr_table_setn(r->headers_out, "Expires", "Tue, 01 Jan 1980 00:00:00 GMT"); + + // Compute and return an Etag for the returned content const string etag(ap_md5(r->pool, (const unsigned char*)c_str(ob))); + + // Check for an If-None-Match header and just return a 304 not-modified status + // if the Etag matches the Etag presented by the client, to save bandwith const char* match = apr_table_get(r->headers_in, "If-None-Match"); apr_table_setn(r->headers_out, "ETag", apr_pstrdup(r->pool, c_str(etag))); if (match != NULL && etag == match) { + r->status = HTTP_NOT_MODIFIED; return OK; } |