forked from Public-Mirror/Textractor
120 lines
3.0 KiB
C++
120 lines
3.0 KiB
C++
// pipe.cc
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// 8/24/2013 jichi
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// Branch IHF/pipe.cpp, rev 93
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// 8/24/2013 TODO: Clean up this file
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#include "host_p.h"
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#include "hookman.h"
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#include "vnrhook/include/defs.h"
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#include "vnrhook/include/const.h"
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#include "ithsys/ithsys.h"
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#include <stdio.h>
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#include "growl.h"
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#include <atlbase.h>
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//#include "CommandQueue.h"
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//#include <QtCore/QDebug>
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#define DEBUG "vnrhost/pipe.cc"
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CRITICAL_SECTION detachCs; // jichi 9/27/2013: also used in main
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//HANDLE hDetachEvent;
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extern HANDLE pipeExistsEvent;
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struct Pipes
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{
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HANDLE hookPipe;
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HANDLE hostPipe;
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};
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void CreateNewPipe()
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{
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CreateThread(nullptr, 0, TextReceiver, new Pipes
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{
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CreateNamedPipeW(ITH_TEXT_PIPE, PIPE_ACCESS_INBOUND, PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE, PIPE_UNLIMITED_INSTANCES, PIPE_BUFFER_SIZE, PIPE_BUFFER_SIZE, MAXDWORD, NULL),
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CreateNamedPipeW(ITH_COMMAND_PIPE, PIPE_ACCESS_OUTBOUND, 0, PIPE_UNLIMITED_INSTANCES, PIPE_BUFFER_SIZE, PIPE_BUFFER_SIZE, MAXDWORD, NULL)
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},
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0, nullptr);
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}
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DWORD WINAPI TextReceiver(LPVOID lpThreadParameter)
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{
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Pipes* pipes = (Pipes*)lpThreadParameter;
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ConnectNamedPipe(pipes->hookPipe, nullptr);
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BYTE buffer[PIPE_BUFFER_SIZE] = {};
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DWORD bytesRead, processId;
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// Artikash 5/20/2018: Shouldn't Windows automatically close the handles when the host process stops running?
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//if (!::running) {
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// NtClose(hookPipe);
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// return 0;
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//}
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ReadFile(pipes->hookPipe, &processId, sizeof(processId), &bytesRead, nullptr);
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man->RegisterProcess(processId, pipes->hostPipe);
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// jichi 9/27/2013: why recursion?
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// Artikash 5/20/2018: To create a new pipe for another process
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CreateNewPipe();
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while (::running)
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{
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if (!ReadFile(pipes->hookPipe, buffer, PIPE_BUFFER_SIZE, &bytesRead, nullptr))
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{
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break;
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}
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enum { DATA_OFFSET = 0xc }; // jichi 10/27/2013: Seem to be the data offset in the pipe
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if (bytesRead < DATA_OFFSET)
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{
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break;
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}
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union { DWORD retn; DWORD commandType; };
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DWORD hook = *(DWORD *)buffer;
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retn = *(DWORD *)(buffer + 4);
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DWORD split = *(DWORD *)(buffer + 8);
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buffer[bytesRead] = 0;
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buffer[bytesRead + 1] = 0;
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if (hook == HOST_NOTIFICATION)
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{
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switch (commandType)
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{
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case HOST_NOTIFICATION_NEWHOOK: // Artikash 5/30/2018: Useless for now, but could be handy to implement something later
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break;
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case HOST_NOTIFICATION_TEXT:
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USES_CONVERSION;
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man->AddConsoleOutput(A2W((LPCSTR)(buffer + 8)));
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break;
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}
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}
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else
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{
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// jichi 9/28/2013: Debug raw data
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//ITH_DEBUG_DWORD9(RecvLen - 0xc,
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// buffer[0xc], buffer[0xd], buffer[0xe], buffer[0xf],
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// buffer[0x10], buffer[0x11], buffer[0x12], buffer[0x13]);
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const BYTE *data = buffer + DATA_OFFSET; // th
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int dataLength = bytesRead - DATA_OFFSET;
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man->DispatchText(processId, data, hook, retn, split, dataLength);
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}
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}
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EnterCriticalSection(&detachCs);
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DisconnectNamedPipe(pipes->hookPipe);
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DisconnectNamedPipe(pipes->hostPipe);
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man->UnRegisterProcess(processId);
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LeaveCriticalSection(&detachCs);
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delete pipes;
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return 0;
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}
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// EOF
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