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QuickLook/QuickLook.Native/QuickLook.Native32/DOpus.cpp

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// Copyright © 2017 Paddy Xu
//
// This file is part of QuickLook program.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "stdafx.h"
#include "DOpus.h"
#include "rapidxml.hpp"
#include <iostream>
#define DOPUS_IPC_LP_INFO 0x00000015
#define DOPUS_IPC_LP_DATA L"listsel"
#define DOPUS_CLASS L"DOpus.ParentWindow"
#define DOPUS_NAME L"Directory Opus"
#define MSGWINDOW_CLASS L"QuickLook.Native.DOpus.MsgWindow"
HWND hMsgWnd;
HANDLE hGetResultEvent;
PCHAR pXmlBuffer;
void DOpus::GetSelected(PWCHAR buffer)
{
/*
* CPU Disasm
* 6A44B588 |. 68 A839526A PUSH OFFSET 6A5239A8 ; /WindowName = "Directory Opus"
* 6A44B58D |. 68 6459526A PUSH OFFSET 6A525964 ; |ClassName = "DOpus.ParentWindow"
* 6A44B592 |. 894424 40 MOV DWORD PTR SS:[ESP+40],EAX ; |
* 6A44B596 |. C74424 30 140 MOV DWORD PTR SS:[ESP+30],14 ; |
* 6A44B59E |. FFD7 CALL EDI ; \USER32.FindWindowW
* ...
* 00BC2E9B |. 50 PUSH EAX ; /lParam = 12FE80C -> 15 ;
* 00BC2E9C |. 57 PUSH EDI ; |wParam ; class = dopusrt.getinfo
* 00BC2E9D |. 6A 4A PUSH 4A ; |Msg = WM_COPYDATA
* 00BC2E9F |. FF75 FC PUSH DWORD PTR SS:[LOCAL.1] ; |hWnd => [LOCAL.1] ; class = DOpus.ParentWindow, text = Directory Opus
* 00BC2EA2 |. FF15 0802C000 CALL DWORD PTR DS:[<&USER32.SendMessageW ; \USER32.SendMessageW
*
* CPU Stack
* 012FE80C |00000015 
* 012FE810 |00000010
* 012FE814 |013A26C0 ; UNICODE "listsel"
*/
if (hMsgWnd == nullptr)
PrepareMessageWindow();
if (hMsgWnd == nullptr)
return;
PWCHAR data = DOPUS_IPC_LP_DATA;
COPYDATASTRUCT cds;
cds.dwData = DOPUS_IPC_LP_INFO;
cds.cbData = static_cast<DWORD>(wcslen(data) + 1) * sizeof WCHAR;
cds.lpData = data;
auto ret = SendMessage(FindWindow(DOPUS_CLASS, DOPUS_NAME), WM_COPYDATA, reinterpret_cast<WPARAM>(hMsgWnd), reinterpret_cast<LPARAM>(&cds));
if (!ret)
return;
WaitForSingleObject(hGetResultEvent, 2000);
ParseXmlBuffer(buffer);
delete[] pXmlBuffer;
}
void DOpus::ParseXmlBuffer(PWCHAR buffer)
{
/*
* <?xml version="1.0" encoding="UTF-8"?>
* <results command="listsel" result="1">
* <items display_path="C:\folder" lister="0x707f6" path="C:\folder" tab="0xb0844">
* <item id="11" name="1.jpg" path="C:\folder\1.jpg" type="0" />
* <item id="12" name="2.zip" path="C:\folder\2.zip" type="1" />
* ...
*/
using namespace rapidxml;
xml_document<> doc;
doc.parse<0>(pXmlBuffer);
auto results = doc.first_node("results");
auto items = results->first_node("items");
for (auto item = items->first_node("item"); item; item = item->next_sibling("item"))
{
auto path = item->first_attribute("path")->value();
auto size = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, path, -1, nullptr, 0);
auto b = new WCHAR[size];
MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, path, -1, b, size);
wcscpy_s(buffer, MAX_PATH, b);
delete[] b;
return; // we now cares only the first result
}
}
void DOpus::PrepareMessageWindow()
{
WNDCLASSEX wx = {sizeof wx};
wx.cbSize = sizeof(WNDCLASSEX);
wx.lpfnWndProc = msgWindowProc;
wx.lpszClassName = MSGWINDOW_CLASS;
if (RegisterClassEx(&wx))
hMsgWnd = CreateWindowEx(0, MSGWINDOW_CLASS, L"", 0, 0, 0, 0, 0, HWND_MESSAGE, nullptr, nullptr, nullptr);
hGetResultEvent = CreateEvent(nullptr, FALSE, FALSE, nullptr);
}
LRESULT CALLBACK DOpus::msgWindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch (uMsg)
{
case WM_COPYDATA:
{
auto cds = reinterpret_cast<PCOPYDATASTRUCT>(lParam);
auto buf = static_cast<PCHAR>(cds->lpData);
pXmlBuffer = new CHAR[cds->cbData + 1]{'\0'};
memcpy(pXmlBuffer, buf, cds->cbData);
SetEvent(hGetResultEvent);
return 0;
}
default:
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
}