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+/*
+ * nghttp2 - HTTP/2 C Library
+ *
+ * Copyright (c) 2012 Tatsuhiro Tsujikawa
+ *
+ * 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.
+ */
+#ifndef SHRPX_HTTPS_UPSTREAM_H
+#define SHRPX_HTTPS_UPSTREAM_H
+
+#include "shrpx.h"
+
+#include <cinttypes>
+#include <memory>
+
+#include "llhttp.h"
+
+#include "shrpx_upstream.h"
+#include "memchunk.h"
+
+using namespace nghttp2;
+
+namespace shrpx {
+
+class ClientHandler;
+
+class HttpsUpstream : public Upstream {
+public:
+ HttpsUpstream(ClientHandler *handler);
+ virtual ~HttpsUpstream();
+ virtual int on_read();
+ virtual int on_write();
+ virtual int on_event();
+ virtual int on_downstream_abort_request(Downstream *downstream,
+ unsigned int status_code);
+ virtual int
+ on_downstream_abort_request_with_https_redirect(Downstream *downstream);
+ virtual ClientHandler *get_client_handler() const;
+
+ virtual int downstream_read(DownstreamConnection *dconn);
+ virtual int downstream_write(DownstreamConnection *dconn);
+ virtual int downstream_eof(DownstreamConnection *dconn);
+ virtual int downstream_error(DownstreamConnection *dconn, int events);
+
+ void attach_downstream(std::unique_ptr<Downstream> downstream);
+ void delete_downstream();
+ Downstream *get_downstream() const;
+ std::unique_ptr<Downstream> pop_downstream();
+ void error_reply(unsigned int status_code);
+
+ virtual void pause_read(IOCtrlReason reason);
+ virtual int resume_read(IOCtrlReason reason, Downstream *downstream,
+ size_t consumed);
+
+ virtual int on_downstream_header_complete(Downstream *downstream);
+ virtual int on_downstream_body(Downstream *downstream, const uint8_t *data,
+ size_t len, bool flush);
+ virtual int on_downstream_body_complete(Downstream *downstream);
+
+ virtual void on_handler_delete();
+ virtual int on_downstream_reset(Downstream *downstream, bool no_retry);
+ virtual int send_reply(Downstream *downstream, const uint8_t *body,
+ size_t bodylen);
+ virtual int initiate_push(Downstream *downstream, const StringRef &uri);
+ virtual int response_riovec(struct iovec *iov, int iovcnt) const;
+ virtual void response_drain(size_t n);
+ virtual bool response_empty() const;
+
+ virtual Downstream *on_downstream_push_promise(Downstream *downstream,
+ int32_t promised_stream_id);
+ virtual int
+ on_downstream_push_promise_complete(Downstream *downstream,
+ Downstream *promised_downstream);
+ virtual bool push_enabled() const;
+ virtual void cancel_premature_downstream(Downstream *promised_downstream);
+
+ void reset_current_header_length();
+ void log_response_headers(DefaultMemchunks *buf) const;
+ int redirect_to_https(Downstream *downstream);
+
+ // Called when new request has started.
+ void on_start_request();
+
+private:
+ ClientHandler *handler_;
+ llhttp_t htp_;
+ size_t current_header_length_;
+ std::unique_ptr<Downstream> downstream_;
+ IOControl ioctrl_;
+ // The number of requests seen so far.
+ size_t num_requests_;
+};
+
+} // namespace shrpx
+
+#endif // SHRPX_HTTPS_UPSTREAM_H