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lightning-sunbird  0.9+nobinonly
Functions
nsPluginDirServiceProvider.cpp File Reference
#include "nsPluginDirServiceProvider.h"
#include "nsCRT.h"
#include "nsILocalFile.h"
#include "nsIPrefBranch.h"
#include "nsIPrefService.h"
#include "nsDependentString.h"
#include "nsXPIDLString.h"
#include "prmem.h"
#include "nsCOMArray.h"
#include "nsArrayEnumerator.h"

Go to the source code of this file.

Functions

 NS_IMPL_THREADSAFE_ISUPPORTS1 (nsPluginDirServiceProvider, nsIDirectoryServiceProvider) NS_IMETHODIMP nsPluginDirServiceProvider

Function Documentation

Definition at line 215 of file nsPluginDirServiceProvider.cpp.

{
  nsCOMPtr<nsILocalFile>  localFile;
  nsresult rv = NS_ERROR_FAILURE;

  NS_ENSURE_ARG(prop);
  *_retval = nsnull;
  *persistant = PR_TRUE;

#if defined(XP_WIN)
  nsCOMPtr<nsIPrefBranch> prefs(do_GetService(NS_PREFSERVICE_CONTRACTID));
  if (!prefs) {
    return rv;
  }

  if (nsCRT::strcmp(prop, NS_WIN_4DOTX_SCAN_KEY) == 0) {
    // Check our prefs to see if scanning the 4.x folder has been
    // explictly overriden failure to get the pref is okay, we'll do
    // what we've been doing -- a filtered scan
    PRBool bScan4x;
    if (NS_SUCCEEDED(prefs->GetBoolPref(NS_WIN_4DOTX_SCAN_KEY, &bScan4x)) &&
        !bScan4x) {
      return rv;
    }

    // Look for the plugin folder that the user has in their
    // Communicator 4x install
    HKEY keyloc;
    long result;
    DWORD type;
    char szKey[_MAX_PATH] = "Software\\Netscape\\Netscape Navigator";
    char path[_MAX_PATH];

    result = ::RegOpenKeyEx(HKEY_LOCAL_MACHINE, szKey, 0, KEY_READ, &keyloc);

    if (result == ERROR_SUCCESS) {
      char current_version[80];
      DWORD length = sizeof(current_version);

      result = ::RegQueryValueEx(keyloc, "CurrentVersion", NULL, &type,
                                 (LPBYTE)&current_version, &length);

      ::RegCloseKey(keyloc);
      PL_strcat(szKey, "\\");
      PL_strcat(szKey, current_version);
      PL_strcat(szKey, "\\Main");
      result = ::RegOpenKeyEx(HKEY_LOCAL_MACHINE, szKey, 0, KEY_READ, &keyloc);

      if (result == ERROR_SUCCESS) {
        DWORD pathlen = sizeof(path);

        result = ::RegQueryValueEx(keyloc, "Plugins Directory", NULL, &type,
                                   (LPBYTE)&path, &pathlen);
        if (result == ERROR_SUCCESS) {
          rv = NS_NewNativeLocalFile(nsDependentCString(path), PR_TRUE,
                                     getter_AddRefs(localFile));
        }

        ::RegCloseKey(keyloc);
      }
    }
  } else if (nsCRT::strcmp(prop, NS_WIN_JRE_SCAN_KEY) == 0) {
    PRBool isJavaEnabled;
    nsXPIDLCString strVer;
#ifdef OJI
    if ((NS_FAILED(prefs->GetBoolPref("security.enable_java", &isJavaEnabled))
         || !isJavaEnabled) ||
        NS_FAILED(prefs->GetCharPref(prop, getter_Copies(strVer))))
#endif /* OJI */
      return NS_ERROR_FAILURE;
    verBlock minVer;
    TranslateVersionStr(strVer.get(), &minVer);

    // Look for the Java OJI plugin via the JRE install path
    HKEY baseloc;
    HKEY keyloc;
    HKEY entryloc;
    FILETIME modTime;
    DWORD type;
    DWORD index = 0;
    DWORD numChars = _MAX_PATH;
    DWORD pathlen;
    verBlock maxVer;
    ClearVersion(&maxVer);
    char curKey[_MAX_PATH] = "Software\\JavaSoft\\Java Runtime Environment";
    char path[_MAX_PATH];
    // Add + 4 to prevent buffer overrun when adding \bin
    char newestPath[_MAX_PATH + 4];
    const char mozPath[_MAX_PATH] = "Software\\mozilla.org\\Mozilla";
    char browserJavaVersion[_MAX_PATH];

    newestPath[0] = 0;
    LONG result = ::RegOpenKeyEx(HKEY_LOCAL_MACHINE, curKey, 0, KEY_READ,
                                 &baseloc);
    if (ERROR_SUCCESS != result)
      return NS_ERROR_FAILURE;

    // Look for "BrowserJavaVersion"
    if (ERROR_SUCCESS != ::RegQueryValueEx(baseloc, "BrowserJavaVersion", NULL,
                                           NULL, (LPBYTE)&browserJavaVersion,
                                           &numChars))
      browserJavaVersion[0] = 0;

    // We must enumerate through the keys because what if there is
    // more than one version?
    do {
      path[0] = 0;
      numChars = _MAX_PATH;
      pathlen = sizeof(path);
      result = ::RegEnumKeyEx(baseloc, index, curKey, &numChars, NULL, NULL,
                              NULL, &modTime);
      index++;

      // Skip major.minor as it always points to latest in its family
      numChars = 0;
      for (char *p = curKey; *p; p++) {
        if (*p == '.') {
          numChars++;
        }
      }
      if (numChars < 2)
        continue;

      if (ERROR_SUCCESS == result) {
        if (ERROR_SUCCESS == ::RegOpenKeyEx(baseloc, curKey, 0,
                                            KEY_QUERY_VALUE, &keyloc)) {
          // We have a sub key
          if (ERROR_SUCCESS == ::RegQueryValueEx(keyloc, "JavaHome", NULL,
                                                 &type, (LPBYTE)&path,
                                                 &pathlen)) {
            verBlock curVer;
            TranslateVersionStr(curKey, &curVer);
            if (CompareVersion(curVer, minVer) >= 0) {
              if (!strncmp(browserJavaVersion, curKey, _MAX_PATH)) {
                PL_strcpy(newestPath, path);
                ::RegCloseKey(keyloc);
                break;
              }

              if (CompareVersion(curVer, maxVer) >= 0) {
                PL_strcpy(newestPath, path);
                CopyVersion(&maxVer, &curVer);
              }
            }
          }
          ::RegCloseKey(keyloc);
        }
      }
    } while (ERROR_SUCCESS == result);

    ::RegCloseKey(baseloc);

    // If nothing is found, then don't add \bin dir and don't set
    // CurrentVersion for Mozilla
    if (newestPath[0] != 0) {
      if (ERROR_SUCCESS == ::RegCreateKeyEx(HKEY_LOCAL_MACHINE, mozPath, 0,
                                            NULL, REG_OPTION_NON_VOLATILE,
                                            KEY_SET_VALUE|KEY_QUERY_VALUE,
                                            NULL, &entryloc, NULL)) {
        if (ERROR_SUCCESS != ::RegQueryValueEx(entryloc, "CurrentVersion", 0,
                                               NULL, NULL, NULL)) {
          ::RegSetValueEx(entryloc, "CurrentVersion", 0, REG_SZ,
                          (const BYTE*)MOZILLA_VERSION,
                          sizeof(MOZILLA_VERSION));
        }
        ::RegCloseKey(entryloc);
      }

      PL_strcat(newestPath,"\\bin");
      rv = NS_NewNativeLocalFile(nsDependentCString(newestPath), PR_TRUE,
                                 getter_AddRefs(localFile));
    }
  } else if (nsCRT::strcmp(prop, NS_WIN_QUICKTIME_SCAN_KEY) == 0) {
    nsXPIDLCString strVer;
    if (NS_FAILED(prefs->GetCharPref(prop, getter_Copies(strVer))))
      return NS_ERROR_FAILURE;
    verBlock minVer;
    TranslateVersionStr(strVer.get(), &minVer);

    // Look for the Quicktime system installation plugins directory
    HKEY keyloc;
    long result;
    DWORD type;
    verBlock qtVer;
    ClearVersion(&qtVer);
    char path[_MAX_PATH];
    DWORD pathlen = sizeof(path);

    // First we need to check the version of Quicktime via checking
    // the EXE's version table
    if (ERROR_SUCCESS == ::RegOpenKeyEx(HKEY_LOCAL_MACHINE, "software\\Microsoft\\Windows\\CurrentVersion\\App Paths\\QuickTimePlayer.exe", 0, KEY_READ, &keyloc)) {
      if (ERROR_SUCCESS == ::RegQueryValueEx(keyloc, NULL, NULL, &type,
                                             (LPBYTE)&path, &pathlen)) {
        GetFileVersion((char*)path, &qtVer);
      }
      ::RegCloseKey(keyloc);
    }
    if (CompareVersion(qtVer, minVer) < 0)
      return rv;

    if (ERROR_SUCCESS == ::RegOpenKeyEx(HKEY_LOCAL_MACHINE, "software\\Apple Computer, Inc.\\QuickTime", 0, KEY_READ, &keyloc)) {
      DWORD pathlen = sizeof(path);

      result = ::RegQueryValueEx(keyloc, "InstallDir", NULL, &type,
                                 (LPBYTE)&path, &pathlen);
      PL_strcat(path, "\\Plugins");
      if (result == ERROR_SUCCESS)
        rv = NS_NewNativeLocalFile(nsDependentCString(path), PR_TRUE,
                                   getter_AddRefs(localFile));
      ::RegCloseKey(keyloc);
    }
  } else if (nsCRT::strcmp(prop, NS_WIN_WMP_SCAN_KEY) == 0) {
    nsXPIDLCString strVer;
    if (NS_FAILED(prefs->GetCharPref(prop, getter_Copies(strVer))))
      return NS_ERROR_FAILURE;
    verBlock minVer;
    TranslateVersionStr(strVer.get(), &minVer);

    // Look for Windows Media Player system installation plugins directory
    HKEY keyloc;
    DWORD type;
    verBlock wmpVer;
    ClearVersion(&wmpVer);
    char path[_MAX_PATH];
    DWORD pathlen = sizeof(path);

    // First we need to check the version of WMP
    if (ERROR_SUCCESS == ::RegOpenKeyEx(HKEY_LOCAL_MACHINE, "software\\Microsoft\\Windows\\CurrentVersion\\App Paths\\wmplayer.exe", 0, KEY_READ, &keyloc)) {
      if (ERROR_SUCCESS == ::RegQueryValueEx(keyloc, NULL, NULL, &type,
                                             (LPBYTE)&path, &pathlen)) {
        GetFileVersion((char*)path, &wmpVer);
      }
      ::RegCloseKey(keyloc);
    }
    if (CompareVersion(wmpVer, minVer) < 0)
      return rv;

    if (ERROR_SUCCESS == ::RegOpenKeyEx(HKEY_LOCAL_MACHINE,
                                        "software\\Microsoft\\MediaPlayer", 0,
                                        KEY_READ, &keyloc)) {
      if (ERROR_SUCCESS == ::RegQueryValueEx(keyloc, "Installation Directory",
                                             NULL, &type, (LPBYTE)&path,
                                             &pathlen)) {
        rv = NS_NewNativeLocalFile(nsDependentCString(path), PR_TRUE,
                                   getter_AddRefs(localFile));
      }

      ::RegCloseKey(keyloc);
    }
  } else if (nsCRT::strcmp(prop, NS_WIN_ACROBAT_SCAN_KEY) == 0) {
    nsXPIDLCString strVer;
    if (NS_FAILED(prefs->GetCharPref(prop, getter_Copies(strVer)))) {
      return NS_ERROR_FAILURE;
    }

    verBlock minVer;
    TranslateVersionStr(strVer.get(), &minVer);

    // Look for Adobe Acrobat system installation plugins directory
    HKEY baseloc;
    HKEY keyloc;
    FILETIME modTime;
    DWORD type;
    DWORD index = 0;
    DWORD numChars = _MAX_PATH;
    DWORD pathlen;
    verBlock maxVer;
    ClearVersion(&maxVer);
    char curKey[_MAX_PATH] = "software\\Adobe\\Acrobat Reader";
    char path[_MAX_PATH];
    // Add + 8 to prevent buffer overrun when adding \browser
    char newestPath[_MAX_PATH + 8];

    newestPath[0] = 0;
    if (ERROR_SUCCESS != ::RegOpenKeyEx(HKEY_LOCAL_MACHINE, curKey, 0,
                                        KEY_READ, &baseloc)) {
      PL_strcpy(curKey, "software\\Adobe\\Adobe Acrobat");
      if (ERROR_SUCCESS != ::RegOpenKeyEx(HKEY_LOCAL_MACHINE, curKey, 0,
                                          KEY_READ, &baseloc)) {
        return NS_ERROR_FAILURE;
      }
    }

    // We must enumerate through the keys because what if there is
    // more than one version?
    LONG result = ERROR_SUCCESS;
    while (ERROR_SUCCESS == result) {
      path[0] = 0;
      numChars = _MAX_PATH;
      pathlen = sizeof(path);
      result = ::RegEnumKeyEx(baseloc, index, curKey, &numChars, NULL, NULL,
                              NULL, &modTime);
      index++;

      if (ERROR_SUCCESS == result) {
        verBlock curVer;
        TranslateVersionStr(curKey, &curVer);
        PL_strcat(curKey, "\\InstallPath");
        if (ERROR_SUCCESS == ::RegOpenKeyEx(baseloc, curKey, 0,
                                            KEY_QUERY_VALUE, &keyloc)) {
          // We have a sub key
          if (ERROR_SUCCESS == ::RegQueryValueEx(keyloc, NULL, NULL, &type,
                                                 (LPBYTE)&path, &pathlen)) {
            if (CompareVersion(curVer, maxVer) >= 0 &&
                CompareVersion(curVer, minVer) >= 0) {
              PL_strcpy(newestPath, path);
              CopyVersion(&maxVer, &curVer);
            }
          }

          ::RegCloseKey(keyloc);
        }
      }
    }

    ::RegCloseKey(baseloc);

    if (newestPath[0] != 0) {
      PL_strcat(newestPath,"\\browser");
      rv = NS_NewNativeLocalFile(nsDependentCString(newestPath), PR_TRUE,
                                 getter_AddRefs(localFile));
    }

  }
#endif

  if (localFile && NS_SUCCEEDED(rv))
    return CallQueryInterface(localFile, _retval);

  return rv;
}

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