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/*
* Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku
*
* 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 "h2o.h"
struct st_headers_filter_t {
h2o_filter_t super;
h2o_headers_command_t *cmds;
};
static void on_setup_ostream(h2o_filter_t *_self, h2o_req_t *req, h2o_ostream_t **slot)
{
struct st_headers_filter_t *self = (void *)_self;
h2o_headers_command_t *cmd;
for (cmd = self->cmds; cmd->cmd != H2O_HEADERS_CMD_NULL; ++cmd)
h2o_rewrite_headers(&req->pool, &req->res.headers, cmd);
h2o_setup_next_ostream(req, slot);
}
void h2o_headers_register(h2o_pathconf_t *pathconf, h2o_headers_command_t *cmds)
{
struct st_headers_filter_t *self = (void *)h2o_create_filter(pathconf, sizeof(*self));
self->super.on_setup_ostream = on_setup_ostream;
self->cmds = cmds;
}
int h2o_headers_is_prohibited_name(const h2o_token_t *token)
{
/* prohibit connection-specific headers */
if (token == H2O_TOKEN_CONNECTION || token == H2O_TOKEN_CONTENT_LENGTH || token == H2O_TOKEN_TRANSFER_ENCODING)
return 1;
/* prohibit headers added at protocol layer */
if (token == H2O_TOKEN_DATE || token == H2O_TOKEN_SERVER)
return 1;
/* all others are permitted */
return 0;
}
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