gecko/modules/libjar/nsManifestZIPLoader.cpp
Benjamin Smedberg 0b4de441c4 Bug 568691 - Fix MOZ_OMNIJAR registration, r=mwu
--HG--
rename : modules/libjar/nsXPTZipLoader.cpp => modules/libjar/nsManifestZIPLoader.cpp
rename : modules/libjar/nsXPTZipLoader.h => modules/libjar/nsManifestZIPLoader.h
rename : xpcom/reflect/xptinfo/public/nsIXPTLoader.idl => xpcom/components/nsIManifestLoader.idl
2010-07-02 09:53:19 -04:00

119 lines
3.8 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** 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 the XPT zip reader.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corp.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* John Bandhauer <jband@netscape.com>
* Alec Flett <alecf@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 "nsManifestZIPLoader.h"
#include "nsJAR.h"
#include "nsString.h"
#include "nsStringEnumerator.h"
nsManifestZIPLoader::nsManifestZIPLoader() {
}
NS_IMPL_ISUPPORTS1(nsManifestZIPLoader, nsIManifestLoader)
nsresult
nsManifestZIPLoader::LoadEntry(nsILocalFile* aFile,
const char* aName,
nsIInputStream** aResult)
{
nsCOMPtr<nsIZipReader> zip = dont_AddRef(GetZipReader(aFile));
if (!zip)
return NS_OK;
return zip->GetInputStream(aName, aResult);
}
static void
EnumerateEntriesForPattern(nsIZipReader* zip, const char* pattern,
nsIManifestLoaderSink* aSink)
{
nsCOMPtr<nsIUTF8StringEnumerator> entries;
if (NS_FAILED(zip->FindEntries(pattern, getter_AddRefs(entries))) ||
!entries) {
return;
}
PRBool hasMore;
int index = 0;
while (NS_SUCCEEDED(entries->HasMore(&hasMore)) && hasMore) {
nsCAutoString itemName;
if (NS_FAILED(entries->GetNext(itemName)))
return;
nsCOMPtr<nsIInputStream> stream;
if (NS_FAILED(zip->GetInputStream(itemName.get(), getter_AddRefs(stream))))
continue;
// ignore the result
aSink->FoundEntry(itemName.get(), index++, stream);
}
}
nsresult
nsManifestZIPLoader::EnumerateEntries(nsILocalFile* aFile,
nsIManifestLoaderSink* aSink)
{
nsCOMPtr<nsIZipReader> zip = dont_AddRef(GetZipReader(aFile));
if (!zip) {
NS_WARNING("Could not get Zip Reader");
return NS_OK;
}
EnumerateEntriesForPattern(zip, "components/*.manifest$", aSink);
EnumerateEntriesForPattern(zip, "chrome/*.manifest$", aSink);
return NS_OK;
}
already_AddRefed<nsIZipReader>
nsManifestZIPLoader::GetZipReader(nsILocalFile* file)
{
NS_ASSERTION(file, "bad file");
nsCOMPtr<nsIZipReader> reader = new nsJAR();
nsresult rv = reader->Open(file);
if (NS_FAILED(rv))
return NULL;
return reader.forget();
}