static void do_send_file(struct st_h2o_sendfile_generator_t *self, h2o_req_t *req, int status, const char *reason, h2o_buf_t mime_type)
{
/* link the request */
self->req = req;
/* setup response */
req->res.status = status;
req->res.reason = reason;
req->res.content_length = self->bytesleft;
h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CONTENT_TYPE, mime_type.base, mime_type.len);
h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_LAST_MODIFIED, self->last_modified_buf, H2O_TIMESTR_RFC1123_LEN);
h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_ETAG, self->etag_buf, self->etag_len);
/* send data */
h2o_start_response(req, &self->super);
if (req->_ostr_top->start_pull != NULL) {
req->_ostr_top->start_pull(req->_ostr_top, do_pull);
} else {
size_t bufsz = MAX_BUF_SIZE;
if (self->bytesleft < bufsz)
bufsz = self->bytesleft;
self->buf = h2o_mempool_alloc(&req->pool, bufsz);
do_proceed(&self->super, req);
}
}
static void do_send_file(struct st_h2o_sendfile_generator_t *self, h2o_req_t *req, int status, const char *reason,
h2o_iovec_t mime_type, h2o_mime_attributes_t *mime_attr, int is_get)
{
/* link the request */
self->req = req;
/* setup response */
req->res.status = status;
req->res.reason = reason;
req->res.content_length = self->bytesleft;
req->res.mime_attr = mime_attr;
if (self->ranged.range_count > 1) {
mime_type.base = h2o_mem_alloc_pool(&req->pool, 52);
mime_type.len = sprintf(mime_type.base, "multipart/byteranges; boundary=%s", self->ranged.boundary.base);
}
h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CONTENT_TYPE, mime_type.base, mime_type.len);
h2o_filecache_get_last_modified(self->file.ref, self->header_bufs.last_modified);
h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_LAST_MODIFIED, self->header_bufs.last_modified,
H2O_TIMESTR_RFC1123_LEN);
add_headers_unconditional(self, req);
if (self->content_encoding.base != NULL)
h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CONTENT_ENCODING, self->content_encoding.base,
self->content_encoding.len);
if (self->ranged.range_count == 0)
h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_ACCEPT_RANGES, H2O_STRLIT("bytes"));
else if (self->ranged.range_count == 1) {
h2o_iovec_t content_range;
content_range.base = h2o_mem_alloc_pool(&req->pool, 128);
content_range.len = sprintf(content_range.base, "bytes %zd-%zd/%zd", self->ranged.range_infos[0],
self->ranged.range_infos[0] + self->ranged.range_infos[1] - 1, self->ranged.filesize);
h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CONTENT_RANGE, content_range.base, content_range.len);
}
/* special path for cases where we do not need to send any data */
if (!is_get || self->bytesleft == 0) {
static h2o_generator_t generator = {NULL, NULL};
h2o_start_response(req, &generator);
h2o_send(req, NULL, 0, 1);
do_close(&self->super, req);
return;
}
/* send data */
h2o_start_response(req, &self->super);
if (self->ranged.range_count == 1)
self->file.off = self->ranged.range_infos[0];
if (req->_ostr_top->start_pull != NULL && self->ranged.range_count < 2) {
req->_ostr_top->start_pull(req->_ostr_top, do_pull);
} else {
size_t bufsz = MAX_BUF_SIZE;
if (self->bytesleft < bufsz)
bufsz = self->bytesleft;
self->buf = h2o_mem_alloc_pool(&req->pool, bufsz);
if (self->ranged.range_count < 2)
do_proceed(&self->super, req);
else {
self->bytesleft = 0;
self->super.proceed = do_multirange_proceed;
do_multirange_proceed(&self->super, req);
}
}
}