1 | <?php |
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2 | |
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3 | /** |
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4 | * Zend Framework |
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5 | * |
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6 | * LICENSE |
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7 | * |
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8 | * This source file is subject to the new BSD license that is bundled |
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9 | * with this package in the file LICENSE.txt. |
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10 | * It is also available through the world-wide-web at this URL: |
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11 | * http://framework.zend.com/license/new-bsd |
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12 | * If you did not receive a copy of the license and are unable to |
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13 | * obtain it through the world-wide-web, please send an email |
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14 | * to license@zend.com so we can send you a copy immediately. |
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15 | * |
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16 | * @category Zend |
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17 | * @package Zend_Gdata |
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18 | * @subpackage Gdata |
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19 | * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) |
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20 | * @license http://framework.zend.com/license/new-bsd New BSD License |
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21 | * @version $Id: MimeBodyString.php 24594 2012-01-05 21:27:01Z matthew $ |
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22 | */ |
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23 | |
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24 | /** |
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25 | * A wrapper for strings for buffered reading. |
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26 | * |
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27 | * @category Zend |
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28 | * @package Zend_Gdata |
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29 | * @subpackage Gdata |
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30 | * @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com) |
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31 | * @license http://framework.zend.com/license/new-bsd New BSD License |
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32 | */ |
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33 | class Zend_Gdata_MimeBodyString |
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34 | { |
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35 | |
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36 | /** |
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37 | * The source string. |
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38 | * |
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39 | * @var string |
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40 | */ |
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41 | protected $_sourceString = ''; |
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42 | |
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43 | /** |
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44 | * The size of the MIME message. |
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45 | * @var integer |
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46 | */ |
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47 | protected $_bytesRead = 0; |
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48 | |
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49 | /** |
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50 | * Create a new MimeBodyString object. |
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51 | * |
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52 | * @param string $sourceString The string we are wrapping. |
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53 | */ |
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54 | public function __construct($sourceString) |
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55 | { |
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56 | $this->_sourceString = $sourceString; |
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57 | $this->_bytesRead = 0; |
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58 | } |
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59 | |
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60 | /** |
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61 | * Read the next chunk of the string. |
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62 | * |
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63 | * @param integer $bytesRequested The size of the chunk that is to be read. |
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64 | * @return string A corresponding piece of the string. |
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65 | */ |
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66 | public function read($bytesRequested) |
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67 | { |
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68 | $len = strlen($this->_sourceString); |
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69 | if($this->_bytesRead == $len) { |
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70 | return FALSE; |
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71 | } else if($bytesRequested > $len - $this->_bytesRead) { |
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72 | $bytesRequested = $len - $this->_bytesRead; |
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73 | } |
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74 | |
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75 | $buffer = substr($this->_sourceString, $this->_bytesRead, $bytesRequested); |
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76 | $this->_bytesRead += $bytesRequested; |
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77 | |
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78 | return $buffer; |
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79 | } |
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80 | |
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81 | /** |
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82 | * The length of the string. |
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83 | * |
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84 | * @return int The length of the string contained in the object. |
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85 | */ |
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86 | public function getSize() |
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87 | { |
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88 | return strlen($this->_sourceString); |
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89 | } |
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90 | |
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91 | |
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92 | } |
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