diff options
Diffstat (limited to 'admin/survey/excel/PHPExcel/Shared/OLE/ChainedBlockStream.php')
| -rw-r--r-- | admin/survey/excel/PHPExcel/Shared/OLE/ChainedBlockStream.php | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/admin/survey/excel/PHPExcel/Shared/OLE/ChainedBlockStream.php b/admin/survey/excel/PHPExcel/Shared/OLE/ChainedBlockStream.php deleted file mode 100644 index 286e834..0000000 --- a/admin/survey/excel/PHPExcel/Shared/OLE/ChainedBlockStream.php +++ /dev/null @@ -1,229 +0,0 @@ -<?php
-/**
- * PHPExcel
- *
- * Copyright (C) 2006 - 2012 PHPExcel
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * @category PHPExcel
- * @package PHPExcel_Shared_OLE
- * @copyright Copyright (c) 2006 - 2007 Christian Schmidt
- * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
- * @version 1.7.8, 2012-10-12
- */
-
-/**
- * PHPExcel_Shared_OLE_ChainedBlockStream
- *
- * Stream wrapper for reading data stored in an OLE file. Implements methods
- * for PHP's stream_wrapper_register(). For creating streams using this
- * wrapper, use PHPExcel_Shared_OLE_PPS_File::getStream().
- *
- * @category PHPExcel
- * @package PHPExcel_Shared_OLE
- */
-class PHPExcel_Shared_OLE_ChainedBlockStream
-{
- /**
- * The OLE container of the file that is being read.
- * @var OLE
- */
- public $ole;
-
- /**
- * Parameters specified by fopen().
- * @var array
- */
- public $params;
-
- /**
- * The binary data of the file.
- * @var string
- */
- public $data;
-
- /**
- * The file pointer.
- * @var int byte offset
- */
- public $pos;
-
- /**
- * Implements support for fopen().
- * For creating streams using this wrapper, use OLE_PPS_File::getStream().
- *
- * @param string $path resource name including scheme, e.g.
- * ole-chainedblockstream://oleInstanceId=1
- * @param string $mode only "r" is supported
- * @param int $options mask of STREAM_REPORT_ERRORS and STREAM_USE_PATH
- * @param string &$openedPath absolute path of the opened stream (out parameter)
- * @return bool true on success
- */
- public function stream_open($path, $mode, $options, &$openedPath)
- {
- if ($mode != 'r') {
- if ($options & STREAM_REPORT_ERRORS) {
- trigger_error('Only reading is supported', E_USER_WARNING);
- }
- return false;
- }
-
- // 25 is length of "ole-chainedblockstream://"
- parse_str(substr($path, 25), $this->params);
- if (!isset($this->params['oleInstanceId'],
- $this->params['blockId'],
- $GLOBALS['_OLE_INSTANCES'][$this->params['oleInstanceId']])) {
-
- if ($options & STREAM_REPORT_ERRORS) {
- trigger_error('OLE stream not found', E_USER_WARNING);
- }
- return false;
- }
- $this->ole = $GLOBALS['_OLE_INSTANCES'][$this->params['oleInstanceId']];
-
- $blockId = $this->params['blockId'];
- $this->data = '';
- if (isset($this->params['size']) &&
- $this->params['size'] < $this->ole->bigBlockThreshold &&
- $blockId != $this->ole->root->_StartBlock) {
-
- // Block id refers to small blocks
- $rootPos = $this->ole->_getBlockOffset($this->ole->root->_StartBlock);
- while ($blockId != -2) {
- $pos = $rootPos + $blockId * $this->ole->bigBlockSize;
- $blockId = $this->ole->sbat[$blockId];
- fseek($this->ole->_file_handle, $pos);
- $this->data .= fread($this->ole->_file_handle, $this->ole->bigBlockSize);
- }
- } else {
- // Block id refers to big blocks
- while ($blockId != -2) {
- $pos = $this->ole->_getBlockOffset($blockId);
- fseek($this->ole->_file_handle, $pos);
- $this->data .= fread($this->ole->_file_handle, $this->ole->bigBlockSize);
- $blockId = $this->ole->bbat[$blockId];
- }
- }
- if (isset($this->params['size'])) {
- $this->data = substr($this->data, 0, $this->params['size']);
- }
-
- if ($options & STREAM_USE_PATH) {
- $openedPath = $path;
- }
-
- return true;
- }
-
- /**
- * Implements support for fclose().
- *
- */
- public function stream_close()
- {
- $this->ole = null;
- unset($GLOBALS['_OLE_INSTANCES']);
- }
-
- /**
- * Implements support for fread(), fgets() etc.
- *
- * @param int $count maximum number of bytes to read
- * @return string
- */
- public function stream_read($count)
- {
- if ($this->stream_eof()) {
- return false;
- }
- $s = substr($this->data, $this->pos, $count);
- $this->pos += $count;
- return $s;
- }
-
- /**
- * Implements support for feof().
- *
- * @return bool TRUE if the file pointer is at EOF; otherwise FALSE
- */
- public function stream_eof()
- {
- $eof = $this->pos >= strlen($this->data);
- // Workaround for bug in PHP 5.0.x: http://bugs.php.net/27508
- if (version_compare(PHP_VERSION, '5.0', '>=') &&
- version_compare(PHP_VERSION, '5.1', '<')) {
-
- $eof = !$eof;
- }
- return $eof;
- }
-
- /**
- * Returns the position of the file pointer, i.e. its offset into the file
- * stream. Implements support for ftell().
- *
- * @return int
- */
- public function stream_tell()
- {
- return $this->pos;
- }
-
- /**
- * Implements support for fseek().
- *
- * @param int $offset byte offset
- * @param int $whence SEEK_SET, SEEK_CUR or SEEK_END
- * @return bool
- */
- public function stream_seek($offset, $whence)
- {
- if ($whence == SEEK_SET && $offset >= 0) {
- $this->pos = $offset;
- } elseif ($whence == SEEK_CUR && -$offset <= $this->pos) {
- $this->pos += $offset;
- } elseif ($whence == SEEK_END && -$offset <= sizeof($this->data)) {
- $this->pos = strlen($this->data) + $offset;
- } else {
- return false;
- }
- return true;
- }
-
- /**
- * Implements support for fstat(). Currently the only supported field is
- * "size".
- * @return array
- */
- public function stream_stat()
- {
- return array(
- 'size' => strlen($this->data),
- );
- }
-
- // Methods used by stream_wrapper_register() that are not implemented:
- // bool stream_flush ( void )
- // int stream_write ( string data )
- // bool rename ( string path_from, string path_to )
- // bool mkdir ( string path, int mode, int options )
- // bool rmdir ( string path, int options )
- // bool dir_opendir ( string path, int options )
- // array url_stat ( string path, int flags )
- // string dir_readdir ( void )
- // bool dir_rewinddir ( void )
- // bool dir_closedir ( void )
-}
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