1 files changed, 84 insertions, 0 deletions
diff --git a/web/server/h2o/libh2o/lib/handler/expires.c b/web/server/h2o/libh2o/lib/handler/expires.c
new file mode 100644
index 00000000..c7722564
--- /dev/null
+++ b/web/server/h2o/libh2o/lib/handler/expires.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <assert.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "h2o.h"
+
+struct st_expires_t {
+    h2o_filter_t super;
+    int mode;
+    h2o_iovec_t value;
+};
+
+static void on_setup_ostream(h2o_filter_t *_self, h2o_req_t *req, h2o_ostream_t **slot)
+{
+    struct st_expires_t *self = (void *)_self;
+
+    switch (req->res.status) {
+    case 200:
+    case 201:
+    case 204:
+    case 206:
+    case 301:
+    case 302:
+    case 303:
+    case 304:
+    case 307:
+        switch (self->mode) {
+        case H2O_EXPIRES_MODE_ABSOLUTE:
+            h2o_set_header(&req->pool, &req->res.headers, H2O_TOKEN_EXPIRES, self->value.base, self->value.len, 0);
+            break;
+        case H2O_EXPIRES_MODE_MAX_AGE:
+            h2o_set_header_token(&req->pool, &req->res.headers, H2O_TOKEN_CACHE_CONTROL, self->value.base, self->value.len);
+            break;
+        default:
+            assert(0);
+            break;
+        }
+        break;
+    default:
+        break;
+    }
+
+    h2o_setup_next_ostream(req, slot);
+}
+
+void h2o_expires_register(h2o_pathconf_t *pathconf, h2o_expires_args_t *args)
+{
+    struct st_expires_t *self = (void *)h2o_create_filter(pathconf, sizeof(*self));
+    self->super.on_setup_ostream = on_setup_ostream;
+    self->mode = args->mode;
+    switch (args->mode) {
+    case H2O_EXPIRES_MODE_ABSOLUTE:
+        self->value = h2o_strdup(NULL, args->data.absolute, SIZE_MAX);
+        break;
+    case H2O_EXPIRES_MODE_MAX_AGE:
+        self->value.base = h2o_mem_alloc(128);
+        self->value.len = sprintf(self->value.base, "max-age=%" PRIu64, args->data.max_age);
+        break;
+    default:
+        assert(0);
+        break;
+    }
+}