diff options
Diffstat (limited to 'admin/survey/excel/PHPExcel/Shared/ZipStreamWrapper.php')
| -rw-r--r-- | admin/survey/excel/PHPExcel/Shared/ZipStreamWrapper.php | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/admin/survey/excel/PHPExcel/Shared/ZipStreamWrapper.php b/admin/survey/excel/PHPExcel/Shared/ZipStreamWrapper.php new file mode 100644 index 0000000..8c55884 --- /dev/null +++ b/admin/survey/excel/PHPExcel/Shared/ZipStreamWrapper.php @@ -0,0 +1,183 @@ +<?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
+ * @copyright Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
+ * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
+ * @version 1.7.8, 2012-10-12
+ */
+
+
+/**
+ * PHPExcel_Shared_ZipStreamWrapper
+ *
+ * @category PHPExcel
+ * @package PHPExcel_Shared
+ * @copyright Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_Shared_ZipStreamWrapper {
+ /**
+ * Internal ZipAcrhive
+ *
+ * @var ZipAcrhive
+ */
+ private $_archive;
+
+ /**
+ * Filename in ZipAcrhive
+ *
+ * @var string
+ */
+ private $_fileNameInArchive = '';
+
+ /**
+ * Position in file
+ *
+ * @var int
+ */
+ private $_position = 0;
+
+ /**
+ * Data
+ *
+ * @var mixed
+ */
+ private $_data = '';
+
+ /**
+ * Register wrapper
+ */
+ public static function register() {
+ @stream_wrapper_unregister("zip");
+ @stream_wrapper_register("zip", __CLASS__);
+ }
+
+ /**
+ * Implements support for fopen().
+ *
+ * @param string $path resource name including scheme, e.g.
+ * @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, $options, &$opened_path) {
+ // Check for mode
+ if ($mode{0} != 'r') {
+ throw new Exception('Mode ' . $mode . ' is not supported. Only read mode is supported.');
+ }
+
+ $pos = strrpos($path, '#');
+ $url['host'] = substr($path, 6, $pos - 6); // 6: strlen('zip://')
+ $url['fragment'] = substr($path, $pos + 1);
+
+ // Open archive
+ $this->_archive = new ZipArchive();
+ $this->_archive->open($url['host']);
+
+ $this->_fileNameInArchive = $url['fragment'];
+ $this->_position = 0;
+ $this->_data = $this->_archive->getFromName( $this->_fileNameInArchive );
+
+ return true;
+ }
+
+ /**
+ * Implements support for fstat().
+ *
+ * @return boolean
+ */
+ public function stream_stat() {
+ return $this->_archive->statName( $this->_fileNameInArchive );
+ }
+
+ /**
+ * Implements support for fread(), fgets() etc.
+ *
+ * @param int $count maximum number of bytes to read
+ * @return string
+ */
+ function stream_read($count) {
+ $ret = substr($this->_data, $this->_position, $count);
+ $this->_position += strlen($ret);
+ return $ret;
+ }
+
+ /**
+ * 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->_position;
+ }
+
+ /**
+ * EOF stream
+ *
+ * @return bool
+ */
+ public function stream_eof() {
+ return $this->_position >= strlen($this->_data);
+ }
+
+ /**
+ * Seek stream
+ *
+ * @param int $offset byte offset
+ * @param int $whence SEEK_SET, SEEK_CUR or SEEK_END
+ * @return bool
+ */
+ public function stream_seek($offset, $whence) {
+ switch ($whence) {
+ case SEEK_SET:
+ if ($offset < strlen($this->_data) && $offset >= 0) {
+ $this->_position = $offset;
+ return true;
+ } else {
+ return false;
+ }
+ break;
+
+ case SEEK_CUR:
+ if ($offset >= 0) {
+ $this->_position += $offset;
+ return true;
+ } else {
+ return false;
+ }
+ break;
+
+ case SEEK_END:
+ if (strlen($this->_data) + $offset >= 0) {
+ $this->_position = strlen($this->_data) + $offset;
+ return true;
+ } else {
+ return false;
+ }
+ break;
+
+ default:
+ return false;
+ }
+ }
+}
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