GEEKING

Installer/Bootstrapper/Unzipper.h

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+// Unzipper.h: interface for the CUnzipper class (c) daniel godson 2002
+//
+// CUnzipper is a simple c++ wrapper for the 'unzip' file extraction
+// api written by Gilles Vollant (c) 2002, which in turn makes use of 
+// 'zlib' written by Jean-loup Gailly and Mark Adler (c) 1995-2002.
+//
+// This software is provided 'as-is', without any express or implied
+// warranty.  In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely without restriction.
+//
+// Notwithstanding this, you are still bound by the conditions imposed
+// by the original authors of 'unzip' and 'zlib'
+//////////////////////////////////////////////////////////////////////
+
+/*
+	Modified by Roblox Corporation in 2008
+	Primarily replaced BOOL return arguments with throwing std::exception
+*/
+
+#if !defined(AFX_UNZIPPER_H__EBC42716_31C7_4659_8EF3_9BF8D4409709__INCLUDED_)
+#define AFX_UNZIPPER_H__EBC42716_31C7_4659_8EF3_9BF8D4409709__INCLUDED_
+
+#if _MSC_VER > 1000
+#pragma once
+#endif // _MSC_VER > 1000
+
+const UINT MAX_COMMENT = 255;
+
+// create our own fileinfo struct to hide the underlying implementation
+struct UZ_FileInfo
+{
+	TCHAR szFileName[MAX_PATH + 1];
+	TCHAR szComment[MAX_COMMENT + 1];
+	
+	DWORD dwVersion;  
+	DWORD dwVersionNeeded;
+	DWORD dwFlags;	 
+	DWORD dwCompressionMethod; 
+	DWORD dwDosDate;	
+	DWORD dwCRC;   
+	DWORD dwCompressedSize; 
+	DWORD dwUncompressedSize;
+	DWORD dwInternalAttrib; 
+	DWORD dwExternalAttrib; 
+	bool bFolder;
+};
+
+class CUnzipper  
+{
+public:
+	bool skipExistingFiles;
+
+	CUnzipper(LPCTSTR szFileName = NULL);
+	virtual ~CUnzipper();
+	
+	// simple interface
+	void Unzip(LPCTSTR szFileName, LPCTSTR szFolder = NULL, BOOL bIgnoreFilePath = FALSE);
+	
+	// works with prior opened zip
+	void Unzip(BOOL bIgnoreFilePath = FALSE); // unzips to output folder or sub folder with zip name 
+	void UnzipTo(LPCTSTR szFolder, BOOL bIgnoreFilePath = FALSE); // unzips to specified folder
+
+	// extended interface
+	void OpenZip(LPCTSTR szFileName);
+	BOOL CloseZip(); // for multiple reuse
+	
+	// unzip by file index
+	int GetFileCount();
+	BOOL GetFileInfo(int nFile, UZ_FileInfo& info);
+	void UnzipFile(int nFile, LPCTSTR szFolder = NULL, BOOL bIgnoreFilePath = FALSE);
+	
+	// unzip current file
+	BOOL GotoFirstFile(LPCTSTR szExt = NULL);
+	BOOL GotoNextFile(LPCTSTR szExt = NULL);
+	BOOL GetFileInfo(UZ_FileInfo& info);
+	void UnzipFile(LPCTSTR szFolder = NULL, BOOL bIgnoreFilePath = FALSE);
+
+	// helpers
+	BOOL GotoFile(LPCTSTR szFileName, BOOL bIgnoreFilePath = TRUE);
+	BOOL GotoFile(int nFile);
+	
+protected:
+	void* m_uzFile;
+	TCHAR m_szOutputFolder[MAX_PATH + 1];
+
+protected:
+	BOOL CreateFolder(LPCTSTR szFolder);
+	BOOL CreateFilePath(LPCTSTR szFilePath); // truncates from the last '\'
+	void SetFileModTime(LPCTSTR szFilePath, DWORD dwDosDate);
+
+};
+
+#endif // !defined(AFX_UNZIPPER_H__EBC42716_31C7_4659_8EF3_9BF8D4409709__INCLUDED_)