1 | <?php |
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2 | /**************************************************************************\ |
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3 | * eGroupWare * |
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4 | * http://www.egroupware.org * |
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5 | * -------------------------------------------- * |
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6 | * This program is free software; you can redistribute it and/or modify it * |
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7 | * under the terms of the GNU General Public License as published by the * |
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8 | * Free Software Foundation; either version 2 of the License, or (at your * |
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9 | * option) any later version. * |
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10 | \**************************************************************************/ |
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11 | |
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12 | require_once 'common.inc.php'; |
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13 | |
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14 | /** |
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15 | * Classe que provê as fotos dos usuários do LDAP |
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16 | * @author Sidnei Augusto Drovetto Jr. - drovetto@gmail.com |
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17 | * @version 1.0 |
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18 | * @package Workflow |
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19 | * @license http://www.gnu.org/copyleft/gpl.html GPL |
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20 | */ |
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21 | class UserPictureProvider |
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22 | { |
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23 | /** |
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24 | * @var int $userID O ID do usuário cuja foto será exibida |
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25 | * @access private |
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26 | */ |
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27 | private $userID = false; |
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28 | |
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29 | /** |
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30 | * @var int $cacheDays O número de dias antes da imagem ser renovada |
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31 | * @access private |
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32 | */ |
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33 | private $cacheDays = 5; |
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34 | |
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35 | /** |
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36 | * Construtor da classe |
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37 | * @return object |
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38 | * @access public |
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39 | */ |
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40 | public function UserPictureProvider() |
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41 | { |
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42 | if (isset($_GET['userID'])) |
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43 | if (is_numeric($_GET['userID'])) |
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44 | $this->userID = (int) $_GET['userID']; |
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45 | } |
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46 | |
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47 | /** |
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48 | * Redimensiona uma imagem de acordo com o tamanho padrão (hardcoded 60x80) |
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49 | * @param resource $image Um resource do tipo image (da imagem de entrada) |
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50 | * @return resource Um resource do tipo image (da imagem redimensionada) |
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51 | * @access private |
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52 | */ |
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53 | private function resizeImage($image) |
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54 | { |
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55 | /* thumbnail dimensions */ |
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56 | $thumbWidth = 60; |
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57 | $thumbHeight = 80; |
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58 | $thumbRatio = $thumbWidth/$thumbHeight; |
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59 | |
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60 | /* get the image dimensions */ |
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61 | $width = imagesx($image); |
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62 | $height = imagesy($image); |
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63 | $ratio = $width/$height; |
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64 | |
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65 | /* resize the image according to the ratio */ |
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66 | if ($ratio > $thumbRatio) |
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67 | { |
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68 | $newWidth = $thumbWidth; |
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69 | $newHeight = $height * ($newWidth/$width); |
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70 | } |
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71 | else |
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72 | { |
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73 | $newHeight = $thumbHeight; |
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74 | $newWidth = $width * ($newHeight/$height); |
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75 | } |
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76 | |
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77 | /* create the new image */ |
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78 | $output = imagecreatetruecolor($newWidth, $newHeight); |
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79 | imagecopyresampled($output, $image, 0, 0, 0, 0,$newWidth, $newHeight, $width, $height); |
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80 | |
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81 | return $output; |
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82 | } |
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83 | |
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84 | /** |
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85 | * Serve a imagem do usuário |
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86 | * @return void |
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87 | * @access public |
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88 | */ |
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89 | public function serve() |
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90 | { |
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91 | if ($this->userID === false) |
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92 | return; |
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93 | |
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94 | /* encontra o diretório onde os arquivos estão armazenados */ |
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95 | $baseDirectory = ''; |
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96 | if (isset($_SESSION['workflow']['ResourcesRedirector']['baseDirectory'])) |
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97 | { |
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98 | $baseDirectory = $_SESSION['workflow']['ResourcesRedirector']['baseDirectory']; |
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99 | } |
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100 | else |
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101 | { |
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102 | if (isset($_SESSION['phpgw_info']['workflow']['vfs_basedir'])) |
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103 | { |
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104 | $baseDirectory = $_SESSION['phpgw_info']['workflow']['vfs_basedir']; |
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105 | } |
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106 | else |
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107 | { |
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108 | if (isset($_SESSION['phpgw_info']['expressomail']['server']['files_dir'])) |
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109 | { |
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110 | $baseDirectory = $_SESSION['phpgw_info']['expressomail']['server']['files_dir']; |
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111 | } |
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112 | else |
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113 | { |
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114 | /* em último caso, tenta buscar a informação em banco de dados */ |
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115 | /* prepara o ambiente para a carga de informações sobre o banco de dados */ |
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116 | $result = Factory::getInstance('WorkflowObjects')->getDBExpresso()->Link_ID->query('SELECT config_value FROM phpgw_config WHERE config_app = ? AND config_name = ?', array('phpgwapi', 'files_dir')); |
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117 | if (empty($result)) |
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118 | return; |
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119 | $fields = $result->fetchRow(); |
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120 | $baseDirectory = $fields['config_value']; |
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121 | } |
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122 | } |
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123 | $_SESSION['workflow']['ResourcesRedirector']['baseDirectory'] = $baseDirectory; |
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124 | } |
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125 | |
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126 | $baseDirectory = str_replace('//', '/', $baseDirectory . '/workflow/workflow/ldapPictures'); |
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127 | $filename = $baseDirectory . '/' . $this->userID; |
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128 | |
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129 | $createPictureFile = true; |
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130 | if (file_exists($filename)) |
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131 | { |
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132 | if ((filemtime($filename) + ($this->cacheDays * 24 * 60 * 60)) > mktime()) |
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133 | $createPictureFile = false; |
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134 | else |
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135 | unlink($filename); |
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136 | } |
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137 | |
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138 | if ($createPictureFile) |
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139 | { |
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140 | if (!is_dir($baseDirectory)) |
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141 | mkdir($baseDirectory, 0770, true); |
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142 | |
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143 | $contents = Factory::getInstance('WorkflowLDAP')->getUserPicture($this->userID); |
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144 | $success = true; |
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145 | if ($contents !== false) |
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146 | { |
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147 | $image = imagecreatefromstring($contents); |
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148 | $image = $this->resizeImage($image); |
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149 | $success = @imagepng($image, $filename); |
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150 | } |
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151 | |
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152 | if (($contents === false) || ($success === false)) |
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153 | { |
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154 | $filename = $baseDirectory . '/default.png'; |
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155 | if (!file_exists($filename)) |
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156 | { |
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157 | $image = imagecreatefrompng(dirname(__FILE__) . '/../../expressoMail1_2/templates/default/images/photo.png'); |
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158 | $image = $this->resizeImage($image); |
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159 | $success = @imagepng($image, $filename); |
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160 | } |
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161 | |
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162 | if ($success === false) |
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163 | return false; |
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164 | } |
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165 | } |
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166 | |
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167 | Factory::getInstance('ResourcesRedirector')->show($filename); |
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168 | } |
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169 | } |
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170 | ?> |
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