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extend/phpexcel/PHPExcel/Shared/PCLZip/gnu-lgpl.txt

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+		  GNU LESSER GENERAL PUBLIC LICENSE
+		       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
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+can use it too, but we suggest you first think carefully about whether
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+
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+
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+
+		  GNU LESSER GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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+
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+
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+
+That's all there is to it!
+
+

extend/phpexcel/PHPExcel/Shared/PCLZip/readme.txt

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+// --------------------------------------------------------------------------------
+// PclZip 2.8.2 - readme.txt
+// --------------------------------------------------------------------------------
+// License GNU/LGPL - August 2009
+// Vincent Blavet - vincent@phpconcept.net
+// http://www.phpconcept.net
+// --------------------------------------------------------------------------------
+// $Id: readme.txt,v 1.60 2009/09/30 20:35:21 vblavet Exp $
+// --------------------------------------------------------------------------------
+
+
+
+0 - Sommaire
+============
+    1 - Introduction
+    2 - What's new
+    3 - Corrected bugs
+    4 - Known bugs or limitations
+    5 - License
+    6 - Warning
+    7 - Documentation
+    8 - Author
+    9 - Contribute
+
+1 - Introduction
+================
+
+  PclZip is a library that allow you to manage a Zip archive.
+
+  Full documentation about PclZip can be found here : http://www.phpconcept.net/pclzip
+
+2 - What's new
+==============
+
+  Version 2.8.2 :
+    - PCLZIP_CB_PRE_EXTRACT and PCLZIP_CB_POST_EXTRACT are now supported with 
+      extraction as a string (PCLZIP_OPT_EXTRACT_AS_STRING). The string
+      can also be modified in the post-extract call back.
+    **Bugs correction :
+    - PCLZIP_OPT_REMOVE_ALL_PATH was not working correctly    
+    - Remove use of eval() and do direct call to callback functions
+    - Correct support of 64bits systems (Thanks to WordPress team)
+
+  Version 2.8.1 :
+    - Move option PCLZIP_OPT_BY_EREG to PCLZIP_OPT_BY_PREG because ereg() is
+      deprecated in PHP 5.3. When using option PCLZIP_OPT_BY_EREG, PclZip will
+      automatically replace it by PCLZIP_OPT_BY_PREG.
+  
+  Version 2.8 :
+    - Improve extraction of zip archive for large files by using temporary files
+      This feature is working like the one defined in r2.7.
+      Options are renamed : PCLZIP_OPT_TEMP_FILE_ON, PCLZIP_OPT_TEMP_FILE_OFF,
+      PCLZIP_OPT_TEMP_FILE_THRESHOLD
+    - Add a ratio constant PCLZIP_TEMPORARY_FILE_RATIO to configure the auto
+      sense of temporary file use.
+    - Bug correction : Reduce filepath in returned file list to remove ennoying
+      './/' preambule in file path.
+
+  Version 2.7 :
+    - Improve creation of zip archive for large files :
+      PclZip will now autosense the configured memory and use temporary files
+      when large file is suspected.
+      This feature can also ne triggered by manual options in create() and add()
+      methods. 'PCLZIP_OPT_ADD_TEMP_FILE_ON' force the use of temporary files,
+      'PCLZIP_OPT_ADD_TEMP_FILE_OFF' disable the autosense technic, 
+      'PCLZIP_OPT_ADD_TEMP_FILE_THRESHOLD' allow for configuration of a size
+      threshold to use temporary files.
+      Using "temporary files" rather than "memory" might take more time, but
+      might give the ability to zip very large files :
+      Tested on my win laptop with a 88Mo file :
+        Zip "in-memory" : 18sec (max_execution_time=30, memory_limit=180Mo)
+        Zip "tmporary-files" : 23sec (max_execution_time=30, memory_limit=30Mo)
+    - Replace use of mktime() by time() to limit the E_STRICT error messages.
+    - Bug correction : When adding files with full windows path (drive letter)
+      PclZip is now working. Before, if the drive letter is not the default
+      path, PclZip was not able to add the file.
+
+  Version 2.6 :
+    - Code optimisation
+    - New attributes PCLZIP_ATT_FILE_COMMENT gives the ability to
+      add a comment for a specific file. (Don't really know if this is usefull)
+    - New attribute PCLZIP_ATT_FILE_CONTENT gives the ability to add a string 
+      as a file.
+    - New attribute PCLZIP_ATT_FILE_MTIME modify the timestamp associated with
+      a file.
+    - Correct a bug. Files archived with a timestamp with 0h0m0s were extracted
+      with current time
+    - Add CRC value in the informations returned back for each file after an
+      action.
+    - Add missing closedir() statement.
+    - When adding a folder, and removing the path of this folder, files were
+      incorrectly added with a '/' at the beginning. Which means files are 
+      related to root in unix systems. Corrected.
+    - Add conditional if before constant definition. This will allow users
+      to redefine constants without changing the file, and then improve
+      upgrade of pclzip code for new versions.
+  
+  Version 2.5 :
+    - Introduce the ability to add file/folder with individual properties (file descriptor).
+      This gives for example the ability to change the filename of a zipped file.
+      . Able to add files individually
+      . Able to change full name
+      . Able to change short name
+      . Compatible with global options
+    - New attributes : PCLZIP_ATT_FILE_NAME, PCLZIP_ATT_FILE_NEW_SHORT_NAME, PCLZIP_ATT_FILE_NEW_FULL_NAME
+    - New error code : PCLZIP_ERR_INVALID_ATTRIBUTE_VALUE
+    - Add a security control feature. PclZip can extract any file in any folder
+      of a system. People may use this to upload a zip file and try to override
+      a system file. The PCLZIP_OPT_EXTRACT_DIR_RESTRICTION will give the
+      ability to forgive any directory transversal behavior.
+    - New PCLZIP_OPT_EXTRACT_DIR_RESTRICTION : check extraction path
+    - New error code : PCLZIP_ERR_DIRECTORY_RESTRICTION
+    - Modification in PclZipUtilPathInclusion() : dir and path beginning with ./ will be prepend
+      by current path (getcwd())
+  
+  Version 2.4 :
+    - Code improvment : try to speed up the code by removing unusefull call to pack()
+    - Correct bug in delete() : delete() should be called with no argument. This was not
+      the case in 2.3. This is corrected in 2.4.
+    - Correct a bug in path_inclusion function. When the path has several '../../', the
+      result was bad.
+    - Add a check for magic_quotes_runtime configuration. If enabled, PclZip will 
+      disable it while working and det it back to its original value.
+      This resolve a lots of bad formated archive errors.
+    - Bug correction : PclZip now correctly unzip file in some specific situation,
+      when compressed content has same size as uncompressed content.
+    - Bug correction : When selecting option 'PCLZIP_OPT_REMOVE_ALL_PATH', 
+      directories are not any more created.
+    - Code improvment : correct unclosed opendir(), better handling of . and .. in
+      loops.
+
+
+  Version 2.3 :
+    - Correct a bug with PHP5 : affecting the value 0xFE49FFE0 to a variable does not
+      give the same result in PHP4 and PHP5 ....
+
+  Version 2.2 :
+    - Try development of PCLZIP_OPT_CRYPT .....
+      However this becomes to a stop. To crypt/decrypt I need to multiply 2 long integers,
+      the result (greater than a long) is not supported by PHP. Even the use of bcmath
+      functions does not help. I did not find yet a solution ...;
+    - Add missing '/' at end of directory entries
+    - Check is a file is encrypted or not. Returns status 'unsupported_encryption' and/or
+      error code PCLZIP_ERR_UNSUPPORTED_ENCRYPTION.
+    - Corrected : Bad "version need to extract" field in local file header
+    - Add private method privCheckFileHeaders() in order to check local and central
+      file headers. PclZip is now supporting purpose bit flag bit 3. Purpose bit flag bit 3 gives
+      the ability to have a local file header without size, compressed size and crc filled.
+    - Add a generic status 'error' for file status
+    - Add control of compression type. PclZip only support deflate compression method.
+      Before v2.2, PclZip does not check the compression method used in an archive while
+      extracting. With v2.2 PclZip returns a new error status for a file using an unsupported
+      compression method. New status is "unsupported_compression". New error code is
+      PCLZIP_ERR_UNSUPPORTED_COMPRESSION.
+    - Add optional attribute PCLZIP_OPT_STOP_ON_ERROR. This will stop the extract of files
+      when errors like 'a folder with same name exists' or 'a newer file exists' or
+      'a write protected file' exists, rather than set a status for the concerning file
+      and resume the extract of the zip.
+    - Add optional attribute PCLZIP_OPT_REPLACE_NEWER. This will force, during an extract' the
+      replacement of the file, even if a  newer version of the file exists.
+      Note that today if a file with the same name already exists but is older it will be
+      replaced by the extracted one.
+    - Improve PclZipUtilOption()
+    - Support of zip archive with trailing bytes. Before 2.2, PclZip checks that the central
+      directory structure is the last data in the archive. Crypt encryption/decryption of
+      zip archive put trailing 0 bytes after decryption. PclZip is now supporting this.
+
+  Version 2.1 :
+    - Add the ability to abort the extraction by using a user callback function.
+      The user can now return the value '2' in its callback which indicates to stop the
+      extraction. For a pre call-back extract is stopped before the extration of the current
+      file. For a post call back, the extraction is stopped after.
+    - Add the ability to extract a file (or several files) directly in the standard output.
+      This is done by the new parameter PCLZIP_OPT_EXTRACT_IN_OUTPUT with method extract().
+    - Add support for parameters PCLZIP_OPT_COMMENT, PCLZIP_OPT_ADD_COMMENT,
+      PCLZIP_OPT_PREPEND_COMMENT. This will create, replace, add, or prepend comments
+      in the zip archive.
+    - When merging two archives, the comments are not any more lost, but merged, with a 
+      blank space separator.
+    - Corrected bug : Files are not deleted when all files are asked to be deleted.
+    - Corrected bug : Folders with name '0' made PclZip to abort the create or add feature.
+
+
+  Version 2.0 :
+    ***** Warning : Some new features may break the backward compatibility for your scripts.
+                    Please carefully read the readme file.
+    - Add the ability to delete by Index, name and regular expression. This feature is 
+      performed by the method delete(), which uses the optional parameters
+      PCLZIP_OPT_BY_INDEX, PCLZIP_OPT_BY_NAME, PCLZIP_OPT_BY_EREG or PCLZIP_OPT_BY_PREG.
+    - Add the ability to extract by regular expression. To extract by regexp you must use the method
+      extract(), with the option PCLZIP_OPT_BY_EREG or PCLZIP_OPT_BY_PREG 
+      (depending if you want to use ereg() or preg_match() syntax) followed by the 
+      regular expression pattern.
+    - Add the ability to extract by index, directly with the extract() method. This is a
+      code improvment of the extractByIndex() method.
+    - Add the ability to extract by name. To extract by name you must use the method
+      extract(), with the option PCLZIP_OPT_BY_NAME followed by the filename to
+      extract or an array of filenames to extract. To extract all a folder, use the folder
+      name rather than the filename with a '/' at the end.
+    - Add the ability to add files without compression. This is done with a new attribute
+      which is PCLZIP_OPT_NO_COMPRESSION.
+    - Add the attribute PCLZIP_OPT_EXTRACT_AS_STRING, which allow to extract a file directly
+      in a string without using any file (or temporary file).
+    - Add constant PCLZIP_SEPARATOR for static configuration of filename separators in a single string.
+      The default separator is now a comma (,) and not any more a blank space.
+      THIS BREAK THE BACKWARD COMPATIBILITY : Please check if this may have an impact with
+      your script.
+    - Improve algorythm performance by removing the use of temporary files when adding or 
+      extracting files in an archive.
+    - Add (correct) detection of empty filename zipping. This can occurs when the removed
+      path is the same
+      as a zipped dir. The dir is not zipped (['status'] = filtered), only its content.
+    - Add better support for windows paths (thanks for help from manus@manusfreedom.com).
+    - Corrected bug : When the archive file already exists with size=0, the add() method
+      fails. Corrected in 2.0.
+    - Remove the use of OS_WINDOWS constant. Use php_uname() function rather.
+    - Control the order of index ranges in extract by index feature.
+    - Change the internal management of folders (better handling of internal flag).
+
+
+  Version 1.3 :
+    - Removing the double include check. This is now done by include_once() and require_once()
+      PHP directives.
+    - Changing the error handling mecanism : Remove the use of an external error library.
+      The former PclError...() functions are replaced by internal equivalent methods.
+      By changing the environment variable PCLZIP_ERROR_EXTERNAL you can still use the former library.
+      Introducing the use of constants for error codes rather than integer values. This will help
+      in futur improvment.
+      Introduction of error handling functions like errorCode(), errorName() and errorInfo().
+    - Remove the deprecated use of calling function with arguments passed by reference.
+    - Add the calling of extract(), extractByIndex(), create() and add() functions
+      with variable options rather than fixed arguments.
+    - Add the ability to remove all the file path while extracting or adding,
+      without any need to specify the path to remove.
+      This is available for extract(), extractByIndex(), create() and add() functionS by using
+      the new variable options parameters :
+      - PCLZIP_OPT_REMOVE_ALL_PATH : by indicating this option while calling the fct.
+    - Ability to change the mode of a file after the extraction (chmod()).
+      This is available for extract() and extractByIndex() functionS by using
+      the new variable options parameters.
+      - PCLZIP_OPT_SET_CHMOD : by setting the value of this option.
+    - Ability to definition call-back options. These call-back will be called during the adding,
+      or the extracting of file (extract(), extractByIndex(), create() and add() functions) :
+      - PCLZIP_CB_PRE_EXTRACT : will be called before each extraction of a file. The user
+        can trigerred the change the filename of the extracted file. The user can triggered the
+        skip of the extraction. This is adding a 'skipped' status in the file list result value.
+      - PCLZIP_CB_POST_EXTRACT : will be called after each extraction of a file.
+        Nothing can be triggered from that point.
+      - PCLZIP_CB_PRE_ADD : will be called before each add of a file. The user
+        can trigerred the change the stored filename of the added file. The user can triggered the
+        skip of the add. This is adding a 'skipped' status in the file list result value.
+      - PCLZIP_CB_POST_ADD : will be called after each add of a file.
+        Nothing can be triggered from that point.
+    - Two status are added in the file list returned as function result : skipped & filename_too_long
+      'skipped' is used when a call-back function ask for skipping the file.
+      'filename_too_long' is used while adding a file with a too long filename to archive (the file is
+      not added)
+    - Adding the function PclZipUtilPathInclusion(), that check the inclusion of a path into
+      a directory.
+    - Add a check of the presence of the archive file before some actions (like list, ...)
+    - Add the initialisation of field "index" in header array. This means that by
+      default index will be -1 when not explicitly set by the methods.
+
+  Version 1.2 :
+    - Adding a duplicate function.
+    - Adding a merge function. The merge function is a "quick merge" function,
+      it just append the content of an archive at the end of the first one. There
+      is no check for duplicate files or more recent files.
+    - Improve the search of the central directory end.
+
+  Version 1.1.2 :
+
+    - Changing the license of PclZip. PclZip is now released under the GNU / LGPL license
+      (see License section).
+    - Adding the optional support of a static temporary directory. You will need to configure
+      the constant PCLZIP_TEMPORARY_DIR if you want to use this feature.
+    - Improving the rename() function. In some cases rename() does not work (different
+      Filesystems), so it will be replaced by a copy() + unlink() functions.
+
+  Version 1.1.1 :
+
+    - Maintenance release, no new feature.
+
+  Version 1.1 :
+
+    - New method Add() : adding files in the archive
+    - New method ExtractByIndex() : partial extract of the archive, files are identified by
+      their index in the archive
+    - New method DeleteByIndex() : delete some files/folder entries from the archive,
+      files are identified by their index in the archive.
+    - Adding a test of the zlib extension presence. If not present abort the script.
+
+  Version 1.0.1 :
+
+    - No new feature
+
+
+3 - Corrected bugs
+==================
+
+  Corrected in Version 2.0 :
+    - Corrected : During an extraction, if a call-back fucntion is used and try to skip
+                  a file, all the extraction process is stopped. 
+
+  Corrected in Version 1.3 :
+    - Corrected : Support of static synopsis for method extract() is broken.
+    - Corrected : invalid size of archive content field (0xFF) should be (0xFFFF).
+    - Corrected : When an extract is done with a remove_path parameter, the entry for
+      the directory with exactly the same path is not skipped/filtered.
+    - Corrected : extractByIndex() and deleteByIndex() were not managing index in the
+      right way. For example indexes '1,3-5,11' will only extract files 1 and 11. This
+      is due to a sort of the index resulting table that puts 11 before 3-5 (sort on
+      string and not interger). The sort is temporarilly removed, this means that
+      you must provide a sorted list of index ranges.
+
+  Corrected in Version 1.2 :
+
+    - Nothing.
+
+  Corrected in Version 1.1.2 :
+
+    - Corrected : Winzip is unable to delete or add new files in a PclZip created archives.
+
+  Corrected in Version 1.1.1 :
+
+    - Corrected : When archived file is not compressed (0% compression), the
+      extract method fails.
+
+  Corrected in Version 1.1 :
+
+    - Corrected : Adding a complete tree of folder may result in a bad archive
+      creation.
+
+  Corrected in Version 1.0.1 :
+
+    - Corrected : Error while compressing files greater than PCLZIP_READ_BLOCK_SIZE (default=1024).
+
+
+4 - Known bugs or limitations
+=============================
+
+  Please publish bugs reports in SourceForge :
+    http://sourceforge.net/tracker/?group_id=40254&atid=427564
+
+  In Version 2.x :
+    - PclZip does only support file uncompressed or compressed with deflate (compression method 8)
+    - PclZip does not support password protected zip archive
+    - Some concern were seen when changing mtime of a file while archiving. 
+      Seems to be linked to Daylight Saving Time (PclTest_changing_mtime).
+
+  In Version 1.2 :
+
+    - merge() methods does not check for duplicate files or last date of modifications.
+
+  In Version 1.1 :
+
+    - Limitation : Using 'extract' fields in the file header in the zip archive is not supported.
+    - WinZip is unable to delete a single file in a PclZip created archive. It is also unable to
+      add a file in a PclZip created archive. (Corrected in v.1.2)
+
+  In Version 1.0.1 :
+
+    - Adding a complete tree of folder may result in a bad archive
+      creation. (Corrected in V.1.1).
+    - Path given to methods must be in the unix format (/) and not the Windows format (\).
+      Workaround : Use only / directory separators.
+    - PclZip is using temporary files that are sometime the name of the file with a .tmp or .gz
+      added suffix. Files with these names may already exist and may be overwritten.
+      Workaround : none.
+    - PclZip does not check if the zlib extension is present. If it is absent, the zip
+      file is not created and the lib abort without warning.
+      Workaround : enable the zlib extension on the php install
+
+  In Version 1.0 :
+
+    - Error while compressing files greater than PCLZIP_READ_BLOCK_SIZE (default=1024).
+      (Corrected in v.1.0.1)
+    - Limitation : Multi-disk zip archive are not supported.
+
+
+5 - License
+===========
+
+  Since version 1.1.2, PclZip Library is released under GNU/LGPL license.
+  This library is free, so you can use it at no cost.
+
+  HOWEVER, if you release a script, an application, a library or any kind of
+  code using PclZip library (or a part of it), YOU MUST :
+  - Indicate in the documentation (or a readme file), that your work
+    uses PclZip Library, and make a reference to the author and the web site
+    http://www.phpconcept.net
+  - Gives the ability to the final user to update the PclZip libary.
+
+  I will also appreciate that you send me a mail (vincent@phpconcept.net), just to
+  be aware that someone is using PclZip.
+
+  For more information about GNU/LGPL license : http://www.gnu.org
+
+6 - Warning
+=================
+
+  This library and the associated files are non commercial, non professional work.
+  It should not have unexpected results. However if any damage is caused by this software
+  the author can not be responsible.
+  The use of this software is at the risk of the user.
+
+7 - Documentation
+=================
+  PclZip User Manuel is available in English on PhpConcept : http://www.phpconcept.net/pclzip/man/en/index.php
+  A Russian translation was done by Feskov Kuzma : http://php.russofile.ru/ru/authors/unsort/zip/
+
+8 - Author
+==========
+
+  This software was written by Vincent Blavet (vincent@phpconcept.net) on its leasure time.
+
+9 - Contribute
+==============
+  If you want to contribute to the development of PclZip, please contact vincent@phpconcept.net.
+  If you can help in financing PhpConcept hosting service, please go to
+  http://www.phpconcept.net/soutien.php