158 lines
5.0 KiB
C++
158 lines
5.0 KiB
C++
/****************************************************************************
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Copyright (c) 2006, Radon Labs GmbH
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "stdneb.h"
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#include "io/zipfs/zipfilesystem.h"
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#include "io/ioserver.h"
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#include "io/archfs/archive.h"
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#include "io/zipfs/zipfilestream.h"
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namespace IO
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{
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__ImplementClass(IO::ZipFileSystem, 'ZPFS', IO::ArchiveFileSystemBase);
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__ImplementImageSingleton(IO::ZipFileSystem);
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using namespace Util;
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//------------------------------------------------------------------------------
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/**
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*/
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ZipFileSystem::ZipFileSystem()
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{
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__ConstructImageSingleton;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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ZipFileSystem::~ZipFileSystem()
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{
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if (this->IsValid())
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{
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this->Discard();
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}
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__DestructImageSingleton;
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}
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//------------------------------------------------------------------------------
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/**
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Setup the ZipFileSystem. Registers the ZipFileStream class.
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*/
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void
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ZipFileSystem::Setup()
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{
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n_assert(!this->IsValid());
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ArchiveFileSystemBase::Setup();
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SchemeRegistry::Instance()->RegisterUriScheme("zip", ZipFileStream::RTTI);
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}
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//------------------------------------------------------------------------------
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/**
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*/
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void
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ZipFileSystem::Discard()
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{
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n_assert(this->IsValid());
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SchemeRegistry::Instance()->UnregisterUriScheme("zip");
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ArchiveFileSystemBase::Discard();
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}
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//------------------------------------------------------------------------------
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/**
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This method takes a normal file URI and checks if the local path
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of the URI is contained as file entry in any mounted zip archive. If yes
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ptr to the zip archive is returned, otherwise a 0 pointer. NOTE: if the
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same path resides in several zip archives, it is currently not defined
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which one will be returned (the current implementation returns the
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first zip archive in alphabetical order which contains the file).
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*/
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GPtr<Archive>
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ZipFileSystem::FindArchiveWithFile(const URI& uri) const
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{
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// get the local path from the URI
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String localPath = AssignRegistry::Instance()->ResolveAssigns(uri).LocalPath();
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n_assert(localPath.IsValid());
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// check each mounted archive
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GPtr<ZipArchive> result;
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this->critSect.Enter();
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IndexT i;
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for (i = 0; (i < this->archives.Size()) && (!result.isvalid()); i++)
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{
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const GPtr<ZipArchive>& arch = this->archives.ValueAtIndex(i).cast<ZipArchive>();
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String pathInZipArchive = arch->ConvertToPathInArchive(localPath);
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if (pathInZipArchive.IsValid())
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{
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if (0 != arch->FindFileEntry(pathInZipArchive))
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{
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result = arch;
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break;
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}
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}
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}
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this->critSect.Leave();
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// result may be invalid pointer at this point
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return result.cast<Archive>();
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}
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//------------------------------------------------------------------------------
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/**
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Same as FindArchiveWithFile(), but checks for a directory entry
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in a zip file.
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*/
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GPtr<Archive>
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ZipFileSystem::FindArchiveWithDir(const URI& uri) const
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{
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// get the local path from the URI
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String localPath = AssignRegistry::Instance()->ResolveAssigns(uri).LocalPath();
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n_assert(localPath.IsValid());
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// check each mounted archive
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GPtr<ZipArchive> result;
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this->critSect.Enter();
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IndexT i;
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for (i = 0; (i < this->archives.Size()) && (!result.isvalid()); i++)
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{
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const GPtr<ZipArchive>& arch = this->archives.ValueAtIndex(i).cast<ZipArchive>();
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String pathInZipArchive = arch->ConvertToPathInArchive(localPath);
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if (pathInZipArchive.IsValid())
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{
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if (0 != arch->FindDirEntry(pathInZipArchive))
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{
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result = arch;
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break;
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}
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}
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}
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this->critSect.Leave();
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// result may be invalid pointer at this point
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return result.cast<Archive>();
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}
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} // namespace IO
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