RetroZilla/toolkit/mozapps/installer/unix/wizard/nsZipExtractor.cpp

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/* -*- 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):
* Samir Gehani <sgehani@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 "nsZipExtractor.h"
#define STANDALONE 1
#include "zipstub.h"
#include "zipfile.h"
nsZipExtractor::nsZipExtractor(char *aSrc, char *aDest) :
mSrc(NULL),
mDest(NULL)
{
if (aSrc)
mSrc = strdup(aSrc);
if (aDest)
mDest = strdup(aDest);
}
nsZipExtractor::~nsZipExtractor()
{
XI_IF_FREE(mSrc);
XI_IF_FREE(mDest);
}
int
nsZipExtractor::Extract(nsComponent *aXPIEngine, int aTotal)
{
DUMP("Extract");
char apath[MAXPATHLEN]; /* archive path */
char bindir[512];
char zpath[MAXPATHLEN]; /* path of file in zip archive */
char epath[MAXPATHLEN]; /* path of file after being extracted */
char *leaf = NULL, *lslash = NULL;
struct stat dummy;
int i, bFoundAll = FALSE, err = OK;
PRInt32 zerr = ZIP_OK;
void *hZip = NULL, *hFind = NULL;
if (!aXPIEngine || !(aXPIEngine->GetArchive()))
return E_PARAM;
sprintf(apath, "%s/%s", mSrc, aXPIEngine->GetArchive());
if (-1 == stat(apath, &dummy))
return E_NO_DOWNLOAD;
/* initialize archive etc.
*/
zerr = ZIP_OpenArchive(apath, &hZip);
if (zerr != ZIP_OK) return E_EXTRACTION;
hFind = ZIP_FindInit(hZip, (const char *) NULL);
if (!hFind)
{
err = E_EXTRACTION;
goto au_revoir;
}
/* extract files
*/
i = 0;
while (!bFoundAll)
{
memset(zpath, 0, MAXPATHLEN);
zerr = ZIP_FindNext(hFind, zpath, MAXPATHLEN);
if (zerr == ZIP_ERR_FNF)
{
bFoundAll = true;
break;
}
if (zerr != ZIP_OK)
{
err = E_EXTRACTION;
goto au_revoir;
}
/* directory encountered: ignore entry
*/
lslash = strrchr(zpath, '/');
if (lslash == (zpath + strlen(zpath) - 1))
continue;
if (!lslash)
leaf = zpath;
else
leaf = lslash + 1;
if (!leaf)
continue;
/* update UI
*/
if (gCtx->opt->mMode != nsXIOptions::MODE_SILENT)
nsInstallDlg::MajorProgressCB(leaf, i,
aTotal, nsInstallDlg::ACT_EXTRACT);
sprintf(epath, "%s/%s", mDest, zpath);
err = DirCreateRecursive(epath);
if (err != OK) goto au_revoir;
zerr = ZIP_ExtractFile(hZip, zpath, epath);
if (zerr != ZIP_OK)
{
err = E_EXTRACTION;
goto au_revoir;
}
i++;
}
sprintf(bindir, "%s/%s", mDest, TMP_EXTRACT_SUBDIR);
if (-1 == stat(bindir, &dummy))
err = E_EXTRACTION;
au_revoir:
/* close archive etc.
*/
if (hFind)
ZIP_FindFree(hFind);
if (hZip)
ZIP_CloseArchive(&hZip);
return err;
}
int
nsZipExtractor::DirCreateRecursive(char *aPath)
{
int err = OK;
char *slash = NULL, *pathpos = NULL;
char currdir[MAXPATHLEN];
struct stat dummy;
if (!aPath || !mDest)
return E_PARAM;
slash = aPath + strlen(mDest);
if (*slash != '/')
return E_INVALID_PTR;
while (slash)
{
memset(currdir, 0, MAXPATHLEN);
strncpy(currdir, aPath, slash - aPath);
if (-1 == stat(currdir, &dummy))
mkdir(currdir, 0755);
pathpos = slash;
slash = strchr(pathpos+1, '/');
}
return err;
}