xpinstall/stub/xpistub.cpp
author bzbarsky@mit.edu
Mon, 17 Sep 2007 15:18:28 -0700
changeset 6004 5c4a24b11b871c519a72c4378f4225c886444cd8
parent 1 9b2a99adc05e53cd4010de512f50118594756650
permissions -rw-r--r--
Make the nsISerializable implementation of nsPrincipal actually work. This makes it possible to save principal objects to a stream and read them back. Bug 369566, r=dveditz+brendan, sr=jst, a=jst

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Communicator client code, released
 * March 31, 1998.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Daniel Veditz <dveditz@netscape.com>
 *   Pierre Phaneuf <pp@ludusdesign.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "xpistub.h"

#include "nsIComponentManager.h"
#include "nsIComponentRegistrar.h"
#include "nsIServiceManager.h"
#include "nsCOMPtr.h"
#include "nsLocalFile.h"

#include "nscore.h"
#include "nspr.h"

#include "nsStubNotifier.h"

#include "nsISoftwareUpdate.h"
#include "nsSoftwareUpdateIIDs.h"
#include "nsPIXPIStubHook.h"

#include "plstr.h"

#if defined(XP_WIN) || defined(XP_OS2)
#if defined(XP_OS2)
#include <stdlib.h>
#define MAX_PATH _MAX_PATH
#else
#include <windows.h>
#endif
#ifndef XP_OS2_EMX
#include <direct.h>
#endif /*emx*/
#define COMPONENT_REG "component.reg"
#endif

#ifdef XP_UNIX
#include <unistd.h>
#define COMPONENT_REG "component.reg"
#endif

//------------------------------------------------------------------------
//          globals
//------------------------------------------------------------------------

static nsIXPIListener      *gListener = 0;
static nsISoftwareUpdate   *gXPI = 0;
static nsIServiceManager   *gServiceMgr = 0;

static NS_DEFINE_IID(kSoftwareUpdateCID, NS_SoftwareUpdate_CID);

PRInt32 gInstallStatus;



//------------------------------------------------------------------------
//          XPI_Init()
//------------------------------------------------------------------------
PR_PUBLIC_API(nsresult) XPI_Init( const char*         aProgramDir,
                                  const char*         aLogName,
                                  pfnXPIProgress      progressCB )
{
    nsresult              rv;

    //--------------------------------------------------------------------
    // Initialize XPCOM and AutoRegister() its components
    //--------------------------------------------------------------------
#if defined(XP_WIN) || defined(XP_OS2)

 #ifdef XP_OS2_EMX
    char componentPath[MAX_PATH];
    _getcwd2(componentPath, MAX_PATH);
    int len = strlen(componentPath);
    for (int i = 0; i < len; i++) {
      if (componentPath[i] == '/') {
        componentPath[i] = '\\';
      }
    }
 #else
    char componentPath[MAX_PATH];
    getcwd(componentPath, MAX_PATH);
 #endif

    nsCOMPtr<nsILocalFile> file;
    rv = NS_NewNativeLocalFile(nsDependentCString(componentPath), PR_TRUE, getter_AddRefs(file));
    if (NS_FAILED(rv)) return rv;
    
    rv = NS_InitXPCOM2(&gServiceMgr, file, nsnull); 

#elif defined(XP_UNIX)

    rv = NS_InitXPCOM2(&gServiceMgr, nsnull, nsnull); 

    char cwd[1024];
    char compDirPath[1024];

    memset(cwd, 0, 1024);
    memset(compDirPath, 0, 1024);
    getcwd(cwd, 1024);
    sprintf(compDirPath, "%s/components", cwd);

    nsCOMPtr<nsILocalFile> compDir;
    NS_NewNativeLocalFile(nsDependentCString(compDirPath), PR_TRUE, getter_AddRefs(compDir));

#else

    rv = NS_InitXPCOM2(&gServiceMgr, NULL, NULL);

#endif

    if (NS_FAILED(rv))
        return rv;

    nsCOMPtr<nsIComponentRegistrar> registrar = do_QueryInterface(gServiceMgr);
    NS_ASSERTION(registrar, "Null nsIComponentRegistrar");

#if defined(XP_UNIX)
    rv = registrar->AutoRegister(compDir);
#else
    rv = registrar->AutoRegister(nsnull);
#endif
    if (NS_FAILED(rv))
        return rv;


    //--------------------------------------------------------------------
    // Get the SoftwareUpdate (XPInstall) service.
    //
    // Since AppShell is not started by XPIStub the XPI service is never 
    // registered with the service manager. We keep a local pointer to it 
    // so it stays alive througout.
    //--------------------------------------------------------------------
    rv = CallCreateInstance(kSoftwareUpdateCID, &gXPI);
    if (NS_FAILED(rv))
        return rv;


    //--------------------------------------------------------------------
    // Override XPInstall's natural assumption that the current executable
    // is Mozilla. Use the given directory as the "Program" folder.
    //--------------------------------------------------------------------
    nsCOMPtr<nsPIXPIStubHook>   hook = do_QueryInterface(gXPI);
    nsCOMPtr<nsILocalFile>      iDirSpec;
  
    if (aProgramDir)
    {
	NS_NewNativeLocalFile(nsDependentCString(aProgramDir), PR_TRUE, getter_AddRefs(iDirSpec));
    }
    else
    {
       nsCOMPtr<nsIProperties> directoryService = 
          do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID, &rv);

       directoryService->Get(NS_XPCOM_CURRENT_PROCESS_DIR, NS_GET_IID(nsILocalFile), 
                             getter_AddRefs(iDirSpec));
    }

    if (hook && iDirSpec)
    {
        rv = hook->StubInitialize( iDirSpec, aLogName );
        if (NS_FAILED(rv)) return rv;
    }
    else
        return NS_ERROR_NULL_POINTER;


    //--------------------------------------------------------------------
    // Save the install wizard's callbacks as a nsIXPINotifer for later
    //--------------------------------------------------------------------
    nsStubListener* stub = new nsStubListener( progressCB );
    if (!stub)
    {
        gXPI->Release();
        rv = NS_ERROR_OUT_OF_MEMORY;
    }
    else
    {
        rv = stub->QueryInterface(NS_GET_IID(nsIXPIListener), (void**)&gListener);
    }
    return rv;
}



//------------------------------------------------------------------------
//          XPI_Exit()
//------------------------------------------------------------------------
PR_PUBLIC_API(void) XPI_Exit()
{
    if (gListener)
        gListener->Release();

    if (gXPI)
        gXPI->Release();

    NS_ShutdownXPCOM(gServiceMgr);

}




//------------------------------------------------------------------------
//          XPI_Install()
//------------------------------------------------------------------------
PR_PUBLIC_API(PRInt32) XPI_Install(
                                    const char*   aFile,
                                    const char*   aArgs, 
                                    long          aFlags )
{
    nsresult                rv = NS_ERROR_NULL_POINTER;
    nsString                args; args.AssignWithConversion(aArgs);
    nsCOMPtr<nsILocalFile>  iFile;

    gInstallStatus = -322; // unique stub error code
    
    NS_NewNativeLocalFile(nsDependentCString(aFile), PR_TRUE, getter_AddRefs(iFile));

    if (iFile && gXPI)
        rv = gXPI->InstallJar( iFile,
                               nsnull,
                               args.get(),
                               nsnull,
                               (aFlags | XPI_NO_NEW_THREAD),
                               gListener );

    return gInstallStatus;
}