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0001 <?php 0002 /** 0003 * Zend Framework 0004 * 0005 * LICENSE 0006 * 0007 * This source file is subject to the new BSD license that is bundled 0008 * with this package in the file LICENSE.txt. 0009 * It is also available through the world-wide-web at this URL: 0010 * http://framework.zend.com/license/new-bsd 0011 * If you did not receive a copy of the license and are unable to 0012 * obtain it through the world-wide-web, please send an email 0013 * to license@zend.com so we can send you a copy immediately. 0014 * 0015 * @category Zend 0016 * @package Zend_View 0017 * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) 0018 * @license http://framework.zend.com/license/new-bsd New BSD License 0019 * @version $Id$ 0020 */ 0021 0022 /** 0023 * Stream wrapper to convert markup of mostly-PHP templates into PHP prior to 0024 * include(). 0025 * 0026 * Based in large part on the example at 0027 * http://www.php.net/manual/en/function.stream-wrapper-register.php 0028 * 0029 * As well as the example provided at: 0030 * http://mikenaberezny.com/2006/02/19/symphony-templates-ruby-erb/ 0031 * written by 0032 * Mike Naberezny (@link http://mikenaberezny.com) 0033 * Paul M. Jones (@link http://paul-m-jones.com) 0034 * 0035 * @category Zend 0036 * @package Zend_View 0037 * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) 0038 * @license http://framework.zend.com/license/new-bsd New BSD License 0039 */ 0040 class Zend_View_Stream 0041 { 0042 /** 0043 * Current stream position. 0044 * 0045 * @var int 0046 */ 0047 protected $_pos = 0; 0048 0049 /** 0050 * Data for streaming. 0051 * 0052 * @var string 0053 */ 0054 protected $_data; 0055 0056 /** 0057 * Stream stats. 0058 * 0059 * @var array 0060 */ 0061 protected $_stat; 0062 0063 /** 0064 * Opens the script file and converts markup. 0065 */ 0066 public function stream_open($path, $mode, $options, &$opened_path) 0067 { 0068 // get the view script source 0069 $path = str_replace('zend.view://', '', $path); 0070 $this->_data = file_get_contents($path); 0071 0072 /** 0073 * If reading the file failed, update our local stat store 0074 * to reflect the real stat of the file, then return on failure 0075 */ 0076 if ($this->_data === false) { 0077 $this->_stat = stat($path); 0078 return false; 0079 } 0080 0081 /** 0082 * Convert <?= ?> to long-form <?php echo ?> and <? ?> to <?php ?> 0083 * 0084 */ 0085 $this->_data = preg_replace('/\<\?\=/', "<?php echo ", $this->_data); 0086 $this->_data = preg_replace('/<\?(?!xml|php)/s', '<?php ', $this->_data); 0087 0088 /** 0089 * file_get_contents() won't update PHP's stat cache, so we grab a stat 0090 * of the file to prevent additional reads should the script be 0091 * requested again, which will make include() happy. 0092 */ 0093 $this->_stat = stat($path); 0094 0095 return true; 0096 } 0097 0098 /** 0099 * Included so that __FILE__ returns the appropriate info 0100 * 0101 * @return array 0102 */ 0103 public function url_stat() 0104 { 0105 return $this->_stat; 0106 } 0107 0108 /** 0109 * Reads from the stream. 0110 */ 0111 public function stream_read($count) 0112 { 0113 $ret = substr($this->_data, $this->_pos, $count); 0114 $this->_pos += strlen($ret); 0115 return $ret; 0116 } 0117 0118 0119 /** 0120 * Tells the current position in the stream. 0121 */ 0122 public function stream_tell() 0123 { 0124 return $this->_pos; 0125 } 0126 0127 0128 /** 0129 * Tells if we are at the end of the stream. 0130 */ 0131 public function stream_eof() 0132 { 0133 return $this->_pos >= strlen($this->_data); 0134 } 0135 0136 0137 /** 0138 * Stream statistics. 0139 */ 0140 public function stream_stat() 0141 { 0142 return $this->_stat; 0143 } 0144 0145 0146 /** 0147 * Seek to a specific point in the stream. 0148 */ 0149 public function stream_seek($offset, $whence) 0150 { 0151 switch ($whence) { 0152 case SEEK_SET: 0153 if ($offset < strlen($this->_data) && $offset >= 0) { 0154 $this->_pos = $offset; 0155 return true; 0156 } else { 0157 return false; 0158 } 0159 break; 0160 0161 case SEEK_CUR: 0162 if ($offset >= 0) { 0163 $this->_pos += $offset; 0164 return true; 0165 } else { 0166 return false; 0167 } 0168 break; 0169 0170 case SEEK_END: 0171 if (strlen($this->_data) + $offset >= 0) { 0172 $this->_pos = strlen($this->_data) + $offset; 0173 return true; 0174 } else { 0175 return false; 0176 } 0177 break; 0178 0179 default: 0180 return false; 0181 } 0182 } 0183 }