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104 lines
3.7 KiB
Plaintext
104 lines
3.7 KiB
Plaintext
// Copyright (c) 2011-2016 Ryan Prichard
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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#ifndef AGENT_SCRAPER_H
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#define AGENT_SCRAPER_H
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#include <windows.h>
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#include <stdint.h>
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#include <memory>
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#include <vector>
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#include "ConsoleLine.h"
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#include "Coord.h"
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#include "LargeConsoleRead.h"
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#include "SmallRect.h"
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#include "Terminal.h"
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class ConsoleScreenBufferInfo;
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class Win32Console;
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class Win32ConsoleBuffer;
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// We must be able to issue a single ReadConsoleOutputW call of
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// MAX_CONSOLE_WIDTH characters, and a single read of approximately several
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// hundred fewer characters than BUFFER_LINE_COUNT.
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const int BUFFER_LINE_COUNT = 3000;
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const int MAX_CONSOLE_WIDTH = 2500;
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const int MAX_CONSOLE_HEIGHT = 2000;
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const int SYNC_MARKER_LEN = 16;
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const int SYNC_MARKER_MARGIN = 200;
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class Scraper {
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public:
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Scraper(
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Win32Console &console,
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Win32ConsoleBuffer &buffer,
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std::unique_ptr<Terminal> terminal,
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Coord initialSize);
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~Scraper();
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void resizeWindow(Win32ConsoleBuffer &buffer,
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Coord newSize,
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ConsoleScreenBufferInfo &finalInfoOut);
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void scrapeBuffer(Win32ConsoleBuffer &buffer,
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ConsoleScreenBufferInfo &finalInfoOut);
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Terminal &terminal() { return *m_terminal; }
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private:
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void resetConsoleTracking(
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Terminal::SendClearFlag sendClear, int64_t scrapedLineCount);
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void markEntireWindowDirty(const SmallRect &windowRect);
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void scanForDirtyLines(const SmallRect &windowRect);
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void clearBufferLines(int firstRow, int count);
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void resizeImpl(const ConsoleScreenBufferInfo &origInfo);
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void syncConsoleContentAndSize(bool forceResize,
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ConsoleScreenBufferInfo &finalInfoOut);
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WORD attributesMask();
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void directScrapeOutput(const ConsoleScreenBufferInfo &info,
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bool consoleCursorVisible);
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bool scrollingScrapeOutput(const ConsoleScreenBufferInfo &info,
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bool consoleCursorVisible,
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bool tentative);
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void syncMarkerText(CHAR_INFO (&output)[SYNC_MARKER_LEN]);
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int findSyncMarker();
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void createSyncMarker(int row);
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private:
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Win32Console &m_console;
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Win32ConsoleBuffer *m_consoleBuffer = nullptr;
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std::unique_ptr<Terminal> m_terminal;
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int m_syncRow = -1;
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unsigned int m_syncCounter = 0;
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bool m_directMode = false;
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Coord m_ptySize;
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int64_t m_scrapedLineCount = 0;
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int64_t m_scrolledCount = 0;
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int64_t m_maxBufferedLine = -1;
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LargeConsoleReadBuffer m_readBuffer;
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std::vector<ConsoleLine> m_bufferData;
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int m_dirtyWindowTop = -1;
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int m_dirtyLineCount = 0;
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};
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#endif // AGENT_SCRAPER_H
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