4.24 beta

7zip/UI/Explorer/DllExports.cpp

@@ -1,43 +1,90 @@
 // DLLExports.cpp
+//
+// Notes:
+// Win2000:
+// If I register at HKCR\Folder\ShellEx then DLL is locked.
+// otherwise it unloads after exlorer closing.
+// but if I call menu for desktop items it's locked all the time
 
 #include "StdAfx.h"
 
 // #include <locale.h>
 
 #include <initguid.h>
-#include <ShlGuid.h>
 #include <windows.h>
+#include <ShlGuid.h>
+#include <OleCtl.h>
 
-#include "../../IPassword.h"
-#include "../Agent/Agent.h"
-#include "../../FileManager/LangUtils.h"
 #include "Common/ComTry.h"
 
-#include "ContextMenu.h"
+#include "../../IPassword.h"
+#include "../../FileManager/LangUtils.h"
+#include "../Agent/Agent.h"
 
+#include "ContextMenu.h"
 #include "OptionsDialog.h"
 
-CComModule _Module;
-
-BEGIN_OBJECT_MAP(ObjectMap)
-	// OBJECT_ENTRY(CLSID_CAgentArchiveHandler, CAgent)
-  OBJECT_ENTRY(CLSID_CZipContextMenu, CZipContextMenu)
-  // OBJECT_ENTRY(CLSID_CSevenZipOptions, CSevenZipOptions)
-END_OBJECT_MAP()
-
-
-/////////////////////////////////////////////////////////////////////////////
-// DLL Entry Point
-
 HINSTANCE g_hInstance;
+LONG g_DllRefCount = 0; // Reference count of this DLL.
+
+static LPCTSTR kShellExtName = TEXT("7-Zip Shell Extension");
+static LPCTSTR kClsidMask = TEXT("CLSID\\%s");
+static LPCTSTR kClsidInprocMask = TEXT("CLSID\\%s\\InprocServer32");
+static LPCTSTR kApprovedKeyPath = TEXT("Software\\Microsoft\\Windows\\CurrentVersion\\Shell Extensions\\Approved");
+
+// #define ODS(sz) OutputDebugString(L#sz)
+
+class CShellExtClassFactory: 
+  public IClassFactory, 
+  public CMyUnknownImp
+{
+public:
+  CShellExtClassFactory() { InterlockedIncrement(&g_DllRefCount); }
+  ~CShellExtClassFactory() { InterlockedDecrement(&g_DllRefCount); }
+
+
+  MY_UNKNOWN_IMP1_MT(IClassFactory)
+  
+  STDMETHODIMP CreateInstance(LPUNKNOWN, REFIID, void**);
+  STDMETHODIMP LockServer(BOOL);
+};
+
+STDMETHODIMP CShellExtClassFactory::CreateInstance(LPUNKNOWN pUnkOuter,
+    REFIID riid, void **ppvObj)
+{
+  // ODS("CShellExtClassFactory::CreateInstance()\r\n");
+  *ppvObj = NULL;
+  if (pUnkOuter)
+    return CLASS_E_NOAGGREGATION;
+  
+  CZipContextMenu *shellExt;
+  try
+  {
+    shellExt = new CZipContextMenu();
+  }
+  catch(...) { return E_OUTOFMEMORY; }
+  if (shellExt == NULL)
+    return E_OUTOFMEMORY;
+  
+  HRESULT res = shellExt->QueryInterface(riid, ppvObj);
+  if (res != S_OK)
+    delete shellExt;
+  return res;
+}
+
+
+STDMETHODIMP CShellExtClassFactory::LockServer(BOOL fLock)
+{
+  return S_OK; // Check it
+}
 
 static bool IsItWindowsNT()
 {
-  OSVERSIONINFO aVersionInfo;
-  aVersionInfo.dwOSVersionInfoSize = sizeof(aVersionInfo);
-  if (!::GetVersionEx(&aVersionInfo)) 
+  OSVERSIONINFO versionInfo;
+  versionInfo.dwOSVersionInfoSize = sizeof(versionInfo);
+  if (!::GetVersionEx(&versionInfo)) 
     return false;
-  return (aVersionInfo.dwPlatformId == VER_PLATFORM_WIN32_NT);
+  return (versionInfo.dwPlatformId == VER_PLATFORM_WIN32_NT);
 }
 
 extern "C"
@@ -47,15 +94,16 @@ BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID)
   if (dwReason == DLL_PROCESS_ATTACH)
   {
     g_hInstance = hInstance;
+    // ODS("In DLLMain, DLL_PROCESS_ATTACH\r\n");
     #ifdef UNICODE
     if (!IsItWindowsNT())
       return FALSE;
     #endif    
-    _Module.Init(ObjectMap, hInstance);
-    //DisableThreadLibraryCalls(hInstance);
   }
   else if (dwReason == DLL_PROCESS_DETACH)
-    _Module.Term();
+  {
+    // ODS("In DLLMain, DLL_PROCESS_DETACH\r\n");
+  }
   return TRUE;
 }
 
@@ -64,28 +112,138 @@ BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID)
 
 STDAPI DllCanUnloadNow(void)
 {
-  return (_Module.GetLockCount()==0) ? S_OK : S_FALSE;
+  // ODS("In DLLCanUnloadNow\r\n");
+  return (g_DllRefCount == 0 ? S_OK : S_FALSE);
 }
 
-/////////////////////////////////////////////////////////////////////////////
-// Returns a class factory to create an object of the requested type
-
 STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID* ppv)
 {
-  return _Module.GetClassObject(rclsid, riid, ppv);
+  // ODS("In DllGetClassObject\r\n");
+  *ppv = NULL;
+  if (IsEqualIID(rclsid, CLSID_CZipContextMenu))
+  {
+    CShellExtClassFactory *cf;
+    try
+    {
+      cf = new CShellExtClassFactory;
+    }
+    catch(...) { return E_OUTOFMEMORY; }
+    if (cf == 0)
+      return E_OUTOFMEMORY;
+    HRESULT res = cf->QueryInterface(riid, ppv);
+    if (res != S_OK)
+      delete cf;
+    return res;
+  }
+  return CLASS_E_CLASSNOTAVAILABLE;
+  // return _Module.GetClassObject(rclsid, riid, ppv);
+}
+
+static BOOL GetStringFromIID(CLSID clsid, LPTSTR s, int size)
+{
+  LPWSTR pwsz;
+  if (StringFromIID(clsid, &pwsz) != S_OK)
+    return FALSE;
+  if(!pwsz)
+    return FALSE;
+  #ifdef UNICODE
+  lstrcpyn(s, pwsz, size);
+  #else
+  WideCharToMultiByte(CP_ACP, 0, pwsz, -1, s, size, NULL, NULL);
+  #endif
+  CoTaskMemFree(pwsz);
+  s[size - 1] = 0;
+  return TRUE;
+}
+
+typedef struct
+{
+  HKEY hRootKey;
+  LPCTSTR SubKey;
+  LPCTSTR ValueName;
+  LPCTSTR Data;
+} CRegItem;
+
+static BOOL RegisterServer(CLSID clsid, LPCTSTR title)
+{
+  TCHAR clsidString[MAX_PATH];
+  if (!GetStringFromIID(clsid, clsidString, MAX_PATH))
+    return FALSE;
+  
+  TCHAR modulePath[MAX_PATH + 1];
+  if (GetModuleFileName(g_hInstance, modulePath, MAX_PATH) == 0)
+    return FALSE;
+  
+  CRegItem clsidEntries[] = 
+  {
+    HKEY_CLASSES_ROOT, kClsidMask,        NULL,                   title,
+    HKEY_CLASSES_ROOT, kClsidInprocMask,  NULL,                   modulePath,
+    HKEY_CLASSES_ROOT, kClsidInprocMask,  TEXT("ThreadingModel"), TEXT("Apartment"),
+    NULL,              NULL,              NULL,                   NULL
+  };
+  
+  HKEY hKey;
+  DWORD dwDisp;
+  //register the CLSID entries
+  for(int i = 0; clsidEntries[i].hRootKey; i++)
+  {
+    TCHAR subKey[MAX_PATH];
+    wsprintf(subKey, clsidEntries[i].SubKey, clsidString);
+    if (RegCreateKeyEx(clsidEntries[i].hRootKey, subKey, 0, NULL, 
+        REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hKey, &dwDisp) != NOERROR)
+      return FALSE;
+    const TCHAR *data = clsidEntries[i].Data;
+    RegSetValueEx(hKey, clsidEntries[i].ValueName, 0, REG_SZ,
+        (LPBYTE)data, (lstrlen(data) + 1) * sizeof(TCHAR));
+    RegCloseKey(hKey);
+  }
+ 
+  if(IsItWindowsNT())
+  {
+    if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, kApprovedKeyPath, 0, NULL, 
+        REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hKey, &dwDisp) == NOERROR)
+    {
+      RegSetValueEx(hKey, clsidString, 0, REG_SZ, 
+          (LPBYTE)title,(lstrlen(title) + 1) * sizeof(TCHAR));
+      RegCloseKey(hKey);
+    }
+  }
+  return TRUE;
 }
 
 STDAPI DllRegisterServer(void)
 {
-  return _Module.RegisterServer(FALSE);
+  return RegisterServer(CLSID_CZipContextMenu, kShellExtName) ?  S_OK: SELFREG_E_CLASS;
 }
 
-/////////////////////////////////////////////////////////////////////////////
-// DllUnregisterServer - Removes entries from the system registry
+static BOOL UnregisterServer(CLSID clsid)
+{
+  TCHAR clsidString[MAX_PATH];
+  if (!GetStringFromIID(clsid, clsidString, MAX_PATH))
+    return FALSE;
+
+  TCHAR subKey[MAX_PATH];
+  wsprintf(subKey, kClsidInprocMask, clsidString);
+  RegDeleteKey(HKEY_CLASSES_ROOT, subKey);
+  
+  wsprintf (subKey, kClsidMask, clsidString);
+  RegDeleteKey(HKEY_CLASSES_ROOT, subKey);
+
+  if(IsItWindowsNT())
+  {
+    HKEY hKey;
+    if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, kApprovedKeyPath, 0, KEY_SET_VALUE, &hKey) == NOERROR)
+    {
+      RegDeleteValue(hKey, clsidString);
+      RegCloseKey(hKey);
+    }
+  }
+  return TRUE;
+}
 
 STDAPI DllUnregisterServer(void)
 {
-  return _Module.UnregisterServer();
+  return UnregisterServer(CLSID_CZipContextMenu) ? S_OK: SELFREG_E_CLASS;
 }
 
 STDAPI CreateObject(