1 | <?php |
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2 | // TODO |
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3 | // * check md5sum (already exists?) |
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4 | |
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5 | include_once(PHPWG_ROOT_PATH.'include/common.inc.php'); |
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6 | include_once(PHPWG_ROOT_PATH.'include/ws_functions.inc.php'); |
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7 | include_once(PHPWG_ROOT_PATH.'admin/include/functions.php'); |
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8 | |
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9 | // Here is the plan |
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10 | // |
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11 | // 1) move uploaded file to upload/2010/01/22/20100122003814-449ada00.jpg |
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12 | // |
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13 | // 2) if taller than max_height or wider than max_width, move to pwg_high |
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14 | // + web sized creation |
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15 | // |
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16 | // 3) thumbnail creation from web sized |
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17 | // |
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18 | // 4) register in database |
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19 | |
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20 | // add default event handler for image and thumbnail resize |
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21 | add_event_handler('upload_image_resize', 'pwg_image_resize', EVENT_HANDLER_PRIORITY_NEUTRAL, 7); |
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22 | add_event_handler('upload_thumbnail_resize', 'pwg_image_resize', EVENT_HANDLER_PRIORITY_NEUTRAL, 7); |
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23 | |
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24 | function add_uploaded_file($source_filepath, $original_filename=null, $categories=null, $level=null) |
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25 | { |
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26 | global $conf; |
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27 | |
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28 | // current date |
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29 | list($dbnow) = pwg_db_fetch_row(pwg_query('SELECT NOW();')); |
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30 | list($year, $month, $day) = preg_split('/[^\d]/', $dbnow, 4); |
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31 | |
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32 | // upload directory hierarchy |
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33 | $upload_dir = sprintf( |
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34 | PHPWG_ROOT_PATH.$conf['upload_dir'].'/%s/%s/%s', |
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35 | $year, |
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36 | $month, |
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37 | $day |
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38 | ); |
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39 | |
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40 | // compute file path |
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41 | $md5sum = md5_file($source_filepath); |
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42 | $date_string = preg_replace('/[^\d]/', '', $dbnow); |
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43 | $random_string = substr($md5sum, 0, 8); |
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44 | $filename_wo_ext = $date_string.'-'.$random_string; |
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45 | $file_path = $upload_dir.'/'.$filename_wo_ext.'.'; |
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46 | |
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47 | list($width, $height, $type) = getimagesize($source_filepath); |
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48 | if (IMAGETYPE_PNG == $type) |
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49 | { |
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50 | $file_path.= 'png'; |
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51 | } |
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52 | else |
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53 | { |
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54 | $file_path.= 'jpg'; |
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55 | } |
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56 | |
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57 | prepare_directory($upload_dir); |
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58 | if (is_uploaded_file($source_filepath)) |
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59 | { |
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60 | move_uploaded_file($source_filepath, $file_path); |
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61 | } |
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62 | else |
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63 | { |
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64 | copy($source_filepath, $file_path); |
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65 | } |
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66 | |
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67 | if ($conf['upload_form_websize_resize'] |
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68 | and need_resize($file_path, $conf['upload_form_websize_maxwidth'], $conf['upload_form_websize_maxheight'])) |
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69 | { |
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70 | $high_path = file_path_for_type($file_path, 'high'); |
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71 | $high_dir = dirname($high_path); |
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72 | prepare_directory($high_dir); |
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73 | |
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74 | rename($file_path, $high_path); |
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75 | $high_infos = pwg_image_infos($high_path); |
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76 | |
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77 | trigger_event( |
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78 | 'upload_image_resize', |
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79 | false, |
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80 | $high_path, |
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81 | $file_path, |
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82 | $conf['upload_form_websize_maxwidth'], |
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83 | $conf['upload_form_websize_maxheight'], |
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84 | $conf['upload_form_websize_quality'], |
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85 | false |
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86 | ); |
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87 | } |
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88 | |
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89 | $file_infos = pwg_image_infos($file_path); |
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90 | |
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91 | $thumb_path = file_path_for_type($file_path, 'thumb'); |
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92 | $thumb_dir = dirname($thumb_path); |
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93 | prepare_directory($thumb_dir); |
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94 | |
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95 | trigger_event( |
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96 | 'upload_thumbnail_resize', |
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97 | false, |
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98 | $file_path, |
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99 | $thumb_path, |
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100 | $conf['upload_form_thumb_maxwidth'], |
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101 | $conf['upload_form_thumb_maxheight'], |
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102 | $conf['upload_form_thumb_quality'], |
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103 | true |
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104 | ); |
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105 | |
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106 | $thumb_infos = pwg_image_infos($thumb_path); |
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107 | |
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108 | // database registration |
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109 | $insert = array( |
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110 | 'file' => pwg_db_real_escape_string(isset($original_filename) ? $original_filename : basename($file_path)), |
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111 | 'date_available' => $dbnow, |
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112 | 'tn_ext' => 'jpg', |
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113 | 'path' => preg_replace('#^'.preg_quote(PHPWG_ROOT_PATH).'#', '', $file_path), |
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114 | 'filesize' => $file_infos['filesize'], |
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115 | 'width' => $file_infos['width'], |
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116 | 'height' => $file_infos['height'], |
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117 | 'md5sum' => $md5sum, |
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118 | ); |
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119 | |
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120 | if (isset($high_infos)) |
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121 | { |
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122 | $insert['has_high'] = 'true'; |
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123 | $insert['high_filesize'] = $high_infos['filesize']; |
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124 | } |
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125 | |
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126 | if (isset($level)) |
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127 | { |
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128 | $insert['level'] = $level; |
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129 | } |
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130 | |
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131 | mass_inserts( |
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132 | IMAGES_TABLE, |
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133 | array_keys($insert), |
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134 | array($insert) |
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135 | ); |
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136 | |
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137 | $image_id = pwg_db_insert_id(IMAGES_TABLE); |
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138 | |
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139 | if (isset($categories) and count($categories) > 0) |
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140 | { |
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141 | associate_images_to_categories( |
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142 | array($image_id), |
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143 | $categories |
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144 | ); |
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145 | } |
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146 | |
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147 | // update metadata from the uploaded file (exif/iptc) |
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148 | if ($conf['use_exif'] and !function_exists('read_exif_data')) |
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149 | { |
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150 | $conf['use_exif'] = false; |
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151 | } |
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152 | update_metadata(array($image_id=>$file_path)); |
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153 | |
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154 | invalidate_user_cache(); |
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155 | |
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156 | return $image_id; |
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157 | } |
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158 | |
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159 | function prepare_directory($directory) |
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160 | { |
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161 | if (!is_dir($directory)) { |
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162 | if (substr(PHP_OS, 0, 3) == 'WIN') |
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163 | { |
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164 | $directory = str_replace('/', DIRECTORY_SEPARATOR, $directory); |
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165 | } |
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166 | umask(0000); |
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167 | $recursive = true; |
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168 | if (!@mkdir($directory, 0777, $recursive)) |
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169 | { |
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170 | die('[prepare_directory] cannot create directory "'.$directory.'"'); |
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171 | } |
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172 | } |
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173 | |
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174 | if (!is_writable($directory)) |
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175 | { |
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176 | // last chance to make the directory writable |
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177 | @chmod($directory, 0777); |
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178 | |
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179 | if (!is_writable($directory)) |
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180 | { |
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181 | die('[prepare_directory] directory "'.$directory.'" has no write access'); |
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182 | } |
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183 | } |
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184 | |
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185 | secure_directory($directory); |
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186 | } |
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187 | |
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188 | function need_resize($image_filepath, $max_width, $max_height) |
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189 | { |
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190 | // TODO : the resize check should take the orientation into account. If a |
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191 | // rotation must be applied to the resized photo, then we should test |
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192 | // invert width and height. |
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193 | list($width, $height) = getimagesize($image_filepath); |
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194 | |
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195 | if ($width > $max_width or $height > $max_height) |
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196 | { |
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197 | return true; |
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198 | } |
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199 | |
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200 | return false; |
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201 | } |
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202 | |
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203 | function get_resize_dimensions($width, $height, $max_width, $max_height, $rotation=null) |
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204 | { |
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205 | $rotate_for_dimensions = false; |
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206 | if (isset($rotation) and in_array(abs($rotation), array(90, 270))) |
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207 | { |
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208 | $rotate_for_dimensions = true; |
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209 | } |
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210 | |
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211 | if ($rotate_for_dimensions) |
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212 | { |
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213 | list($width, $height) = array($height, $width); |
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214 | } |
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215 | |
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216 | $ratio_width = $width / $max_width; |
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217 | $ratio_height = $height / $max_height; |
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218 | |
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219 | // maximal size exceeded ? |
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220 | if ($ratio_width > 1 or $ratio_height > 1) |
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221 | { |
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222 | if ($ratio_width < $ratio_height) |
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223 | { |
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224 | $destination_width = ceil($width / $ratio_height); |
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225 | $destination_height = $max_height; |
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226 | } |
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227 | else |
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228 | { |
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229 | $destination_width = $max_width; |
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230 | $destination_height = ceil($height / $ratio_width); |
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231 | } |
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232 | } |
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233 | |
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234 | if ($rotate_for_dimensions) |
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235 | { |
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236 | list($destination_width, $destination_height) = array($destination_height, $destination_width); |
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237 | } |
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238 | |
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239 | return array( |
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240 | 'width' => $destination_width, |
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241 | 'height'=> $destination_height, |
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242 | ); |
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243 | } |
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244 | |
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245 | function pwg_image_resize($result, $source_filepath, $destination_filepath, $max_width, $max_height, $quality, $strip_metadata=false) |
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246 | { |
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247 | if ($result !== false) |
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248 | { |
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249 | //someone hooked us - so we skip |
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250 | return $result; |
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251 | } |
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252 | |
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253 | if (extension_loaded('imagick')) |
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254 | { |
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255 | return pwg_image_resize_im($source_filepath, $destination_filepath, $max_width, $max_height, $quality, $strip_metadata); |
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256 | } |
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257 | else |
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258 | { |
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259 | return pwg_image_resize_gd($source_filepath, $destination_filepath, $max_width, $max_height, $quality); |
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260 | } |
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261 | } |
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262 | |
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263 | function pwg_image_resize_gd($source_filepath, $destination_filepath, $max_width, $max_height, $quality) |
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264 | { |
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265 | if (!function_exists('gd_info')) |
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266 | { |
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267 | return false; |
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268 | } |
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269 | |
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270 | // extension of the picture filename |
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271 | $extension = strtolower(get_extension($source_filepath)); |
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272 | |
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273 | $source_image = null; |
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274 | if (in_array($extension, array('jpg', 'jpeg'))) |
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275 | { |
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276 | $source_image = imagecreatefromjpeg($source_filepath); |
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277 | } |
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278 | else if ($extension == 'png') |
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279 | { |
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280 | $source_image = imagecreatefrompng($source_filepath); |
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281 | } |
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282 | else |
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283 | { |
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284 | die('unsupported file extension'); |
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285 | } |
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286 | |
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287 | $rotation = null; |
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288 | if (function_exists('imagerotate')) |
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289 | { |
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290 | $rotation = get_rotation_angle($source_filepath); |
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291 | } |
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292 | |
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293 | // width/height |
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294 | $source_width = imagesx($source_image); |
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295 | $source_height = imagesy($source_image); |
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296 | |
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297 | $resize_dimensions = get_resize_dimensions($source_width, $source_height, $max_width, $max_height, $rotation); |
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298 | |
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299 | // testing on height is useless in theory: if width is unchanged, there |
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300 | // should be no resize, because width/height ratio is not modified. |
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301 | if ($resize_dimensions['width'] == $source_width and $resize_dimensions['height'] == $source_height) |
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302 | { |
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303 | // the image doesn't need any resize! We just copy it to the destination |
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304 | copy($source_filepath, $destination_filepath); |
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305 | return true; |
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306 | } |
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307 | |
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308 | $destination_image = imagecreatetruecolor($resize_dimensions['width'], $resize_dimensions['height']); |
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309 | |
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310 | imagecopyresampled( |
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311 | $destination_image, |
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312 | $source_image, |
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313 | 0, |
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314 | 0, |
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315 | 0, |
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316 | 0, |
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317 | $resize_dimensions['width'], |
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318 | $resize_dimensions['height'], |
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319 | $source_width, |
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320 | $source_height |
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321 | ); |
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322 | |
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323 | // rotation occurs only on resized photo to avoid useless memory use |
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324 | if (isset($rotation)) |
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325 | { |
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326 | $destination_image = imagerotate($destination_image, $rotation, 0); |
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327 | } |
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328 | |
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329 | $extension = strtolower(get_extension($destination_filepath)); |
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330 | if ($extension == 'png') |
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331 | { |
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332 | imagepng($destination_image, $destination_filepath); |
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333 | } |
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334 | else |
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335 | { |
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336 | imagejpeg($destination_image, $destination_filepath, $quality); |
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337 | } |
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338 | // freeing memory ressources |
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339 | imagedestroy($source_image); |
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340 | imagedestroy($destination_image); |
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341 | |
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342 | // everything should be OK if we are here! |
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343 | return true; |
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344 | } |
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345 | |
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346 | function pwg_image_resize_im($source_filepath, $destination_filepath, $max_width, $max_height, $quality, $strip_metadata=false) |
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347 | { |
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348 | // extension of the picture filename |
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349 | $extension = strtolower(get_extension($source_filepath)); |
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350 | if (!in_array($extension, array('jpg', 'jpeg', 'png'))) |
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351 | { |
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352 | die('[Imagick] unsupported file extension'); |
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353 | } |
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354 | |
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355 | $image = new Imagick($source_filepath); |
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356 | |
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357 | $rotation = null; |
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358 | if (function_exists('imagerotate')) |
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359 | { |
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360 | $rotation = get_rotation_angle($source_filepath); |
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361 | } |
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362 | |
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363 | // width/height |
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364 | $source_width = $image->getImageWidth(); |
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365 | $source_height = $image->getImageHeight(); |
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366 | |
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367 | $resize_dimensions = get_resize_dimensions($source_width, $source_height, $max_width, $max_height, $rotation); |
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368 | |
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369 | // testing on height is useless in theory: if width is unchanged, there |
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370 | // should be no resize, because width/height ratio is not modified. |
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371 | if ($resize_dimensions['width'] == $source_width and $resize_dimensions['height'] == $source_height) |
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372 | { |
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373 | // the image doesn't need any resize! We just copy it to the destination |
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374 | copy($source_filepath, $destination_filepath); |
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375 | return true; |
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376 | } |
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377 | |
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378 | $image->setImageCompressionQuality($quality); |
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379 | $image->setInterlaceScheme(Imagick::INTERLACE_LINE); |
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380 | |
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381 | if ($strip_metadata) |
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382 | { |
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383 | // we save a few kilobytes. For example a thumbnail with metadata |
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384 | // weights 25KB, without metadata 7KB. |
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385 | $image->stripImage(); |
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386 | } |
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387 | |
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388 | $image->resizeImage($resize_dimensions['width'], $resize_dimensions['height'], Imagick::FILTER_LANCZOS, 0.9); |
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389 | |
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390 | if (isset($rotation)) |
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391 | { |
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392 | $image->rotateImage(new ImagickPixel(), -$rotation); |
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393 | $image->setImageOrientation(Imagick::ORIENTATION_TOPLEFT); |
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394 | } |
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395 | |
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396 | $image->writeImage($destination_filepath); |
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397 | $image->destroy(); |
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398 | |
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399 | // everything should be OK if we are here! |
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400 | return true; |
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401 | } |
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402 | |
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403 | function get_rotation_angle($source_filepath) |
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404 | { |
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405 | $rotation = null; |
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406 | |
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407 | $exif = exif_read_data($source_filepath); |
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408 | |
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409 | if (isset($exif['Orientation']) and preg_match('/^\s*(\d)/', $exif['Orientation'], $matches)) |
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410 | { |
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411 | $orientation = $matches[1]; |
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412 | if (in_array($orientation, array(3, 4))) |
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413 | { |
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414 | $rotation = 180; |
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415 | } |
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416 | elseif (in_array($orientation, array(5, 6))) |
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417 | { |
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418 | $rotation = 270; |
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419 | } |
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420 | elseif (in_array($orientation, array(7, 8))) |
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421 | { |
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422 | $rotation = 90; |
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423 | } |
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424 | } |
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425 | |
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426 | return $rotation; |
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427 | } |
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428 | |
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429 | function pwg_image_infos($path) |
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430 | { |
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431 | list($width, $height) = getimagesize($path); |
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432 | $filesize = floor(filesize($path)/1024); |
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433 | |
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434 | return array( |
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435 | 'width' => $width, |
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436 | 'height' => $height, |
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437 | 'filesize' => $filesize, |
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438 | ); |
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439 | } |
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440 | |
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441 | function is_valid_image_extension($extension) |
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442 | { |
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443 | return in_array(strtolower($extension), array('jpg', 'jpeg', 'png')); |
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444 | } |
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445 | |
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446 | function file_upload_error_message($error_code) |
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447 | { |
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448 | switch ($error_code) { |
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449 | case UPLOAD_ERR_INI_SIZE: |
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450 | return sprintf( |
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451 | l10n('The uploaded file exceeds the upload_max_filesize directive in php.ini: %sB'), |
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452 | get_ini_size('upload_max_filesize', false) |
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453 | ); |
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454 | case UPLOAD_ERR_FORM_SIZE: |
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455 | return l10n('The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form'); |
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456 | case UPLOAD_ERR_PARTIAL: |
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457 | return l10n('The uploaded file was only partially uploaded'); |
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458 | case UPLOAD_ERR_NO_FILE: |
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459 | return l10n('No file was uploaded'); |
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460 | case UPLOAD_ERR_NO_TMP_DIR: |
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461 | return l10n('Missing a temporary folder'); |
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462 | case UPLOAD_ERR_CANT_WRITE: |
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463 | return l10n('Failed to write file to disk'); |
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464 | case UPLOAD_ERR_EXTENSION: |
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465 | return l10n('File upload stopped by extension'); |
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466 | default: |
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467 | return l10n('Unknown upload error'); |
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468 | } |
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469 | } |
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470 | |
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471 | function get_ini_size($ini_key, $in_bytes=true) |
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472 | { |
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473 | $size = ini_get($ini_key); |
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474 | |
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475 | if ($in_bytes) |
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476 | { |
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477 | $size = convert_shortand_notation_to_bytes($size); |
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478 | } |
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479 | |
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480 | return $size; |
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481 | } |
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482 | |
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483 | function convert_shortand_notation_to_bytes($value) |
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484 | { |
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485 | $suffix = substr($value, -1); |
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486 | $multiply_by = null; |
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487 | |
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488 | if ('K' == $suffix) |
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489 | { |
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490 | $multiply_by = 1024; |
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491 | } |
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492 | else if ('M' == $suffix) |
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493 | { |
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494 | $multiply_by = 1024*1024; |
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495 | } |
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496 | else if ('G' == $suffix) |
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497 | { |
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498 | $multiply_by = 1024*1024*1024; |
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499 | } |
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500 | |
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501 | if (isset($multiply_by)) |
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502 | { |
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503 | $value = substr($value, 0, -1); |
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504 | $value*= $multiply_by; |
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505 | } |
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506 | |
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507 | return $value; |
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508 | } |
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509 | |
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510 | function add_upload_error($upload_id, $error_message) |
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511 | { |
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512 | if (!isset($_SESSION['uploads_error'])) |
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513 | { |
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514 | $_SESSION['uploads_error'] = array(); |
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515 | } |
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516 | if (!isset($_SESSION['uploads_error'][$upload_id])) |
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517 | { |
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518 | $_SESSION['uploads_error'][$upload_id] = array(); |
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519 | } |
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520 | |
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521 | array_push($_SESSION['uploads_error'][$upload_id], $error_message); |
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522 | } |
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523 | ?> |
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