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112 lines
4.6 KiB
C++
112 lines
4.6 KiB
C++
// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef NET_HTTP2_TEST_TOOLS_FRAME_PARTS_COLLECTOR_H_
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#define NET_HTTP2_TEST_TOOLS_FRAME_PARTS_COLLECTOR_H_
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// FramePartsCollector is a base class for Http2FrameDecoderListener
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// implementations that create one FrameParts instance for each decoded frame.
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#include <stddef.h>
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#include <memory>
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#include <vector>
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#include "net/http2/decoder/http2_frame_decoder_listener.h"
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#include "net/http2/decoder/http2_frame_decoder_listener_test_util.h"
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#include "net/http2/http2_structures.h"
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#include "net/http2/test_tools/frame_parts.h"
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namespace net {
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namespace test {
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class FramePartsCollector : public FailingHttp2FrameDecoderListener {
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public:
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FramePartsCollector();
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~FramePartsCollector() override;
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// Toss out the collected data.
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void Reset();
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// Returns true if has started recording the info for a frame and has not yet
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// finished doing so.
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bool IsInProgress() const { return current_frame_ != nullptr; }
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// Returns the FrameParts instance into which we're currently recording
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// callback info if IsInProgress, else nullptr.
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const FrameParts* current_frame() const { return current_frame_.get(); }
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// Returns the number of completely collected FrameParts instances.
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size_t size() const { return collected_frames_.size(); }
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// Returns the n'th frame, where 0 is the oldest of the collected frames,
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// and n==size() is the frame currently being collected, if there is one.
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// Returns nullptr if the requested index is not valid.
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const FrameParts* frame(size_t n) const;
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protected:
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// In support of OnFrameHeader, set the header that we expect to be used in
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// the next call.
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// TODO(jamessynge): Remove ExpectFrameHeader et al. once done with supporting
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// SpdyFramer's exact states.
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void ExpectFrameHeader(const Http2FrameHeader& header);
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// For use in implementing On*Start methods of Http2FrameDecoderListener,
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// returns a FrameParts instance, which will be newly created if
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// IsInProgress==false (which the caller should ensure), else will be the
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// current_frame(); never returns nullptr.
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// If called when IsInProgress==true, a test failure will be recorded.
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Http2FrameDecoderListener* StartFrame(const Http2FrameHeader& header);
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// For use in implementing On* callbacks, such as OnPingAck, that are the only
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// call expected for the frame being decoded; not for On*Start methods.
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// Returns a FrameParts instance, which will be newly created if
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// IsInProgress==false (which the caller should ensure), else will be the
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// current_frame(); never returns nullptr.
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// If called when IsInProgress==true, a test failure will be recorded.
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Http2FrameDecoderListener* StartAndEndFrame(const Http2FrameHeader& header);
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// If IsInProgress==true, returns the FrameParts into which the current
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// frame is being recorded; else records a test failure and returns
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// failing_listener_, which will record a test failure when any of its
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// On* methods is called.
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Http2FrameDecoderListener* CurrentFrame();
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// For use in implementing On*End methods, pushes the current frame onto
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// the vector of completed frames, and returns a pointer to it for recording
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// the info in the final call. If IsInProgress==false, records a test failure
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// and returns failing_listener_, which will record a test failure when any
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// of its On* methods is called.
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Http2FrameDecoderListener* EndFrame();
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// For use in implementing OnPaddingTooLong and OnFrameSizeError, is
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// equivalent to EndFrame() if IsInProgress==true, else equivalent to
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// StartAndEndFrame().
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Http2FrameDecoderListener* FrameError(const Http2FrameHeader& header);
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private:
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// Returns the mutable FrameParts instance into which we're currently
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// recording callback info if IsInProgress, else nullptr.
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FrameParts* current_frame() { return current_frame_.get(); }
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// If expected header is set, verify that it matches the header param.
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// TODO(jamessynge): Remove TestExpectedHeader et al. once done
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// with supporting SpdyFramer's exact states.
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void TestExpectedHeader(const Http2FrameHeader& header);
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std::unique_ptr<FrameParts> current_frame_;
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std::vector<std::unique_ptr<FrameParts>> collected_frames_;
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FailingHttp2FrameDecoderListener failing_listener_;
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// TODO(jamessynge): Remove expected_header_ et al. once done with supporting
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// SpdyFramer's exact states.
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Http2FrameHeader expected_header_;
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bool expected_header_set_ = false;
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};
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} // namespace test
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} // namespace net
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#endif // NET_HTTP2_TEST_TOOLS_FRAME_PARTS_COLLECTOR_H_
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