1 | <?php |
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2 | defined('PBASE_PATH') or die('Hacking attempt!'); |
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3 | |
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4 | /** |
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5 | * get the content of web-page, with cache management |
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6 | * @param: string url |
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7 | * @return: string |
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8 | */ |
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9 | function get_file_cached($url) |
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10 | { |
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11 | // html files are cached 10000 seconds |
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12 | $cache_id_prefix = str_replace('http://www.pbase.com/', null, $url); |
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13 | $cache_id_prefix = preg_replace('#([^a-z0-9-_]+)#i', null, $cache_id_prefix); |
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14 | $cache_id = $cache_id_prefix.'-'.substr(time(), 0, -4); |
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15 | |
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16 | if (!file_exists(PBASE_FS_CACHE.$cache_id)) |
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17 | { |
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18 | $files = glob(PBASE_FS_CACHE.$cache_id_prefix.'-*'); |
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19 | foreach ($files as $file) unlink($file); |
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20 | |
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21 | if (($result = download_remote_file($url, PBASE_FS_CACHE.$cache_id)) !== true) |
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22 | { |
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23 | return $result; |
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24 | } |
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25 | } |
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26 | |
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27 | $html = file_get_contents(PBASE_FS_CACHE.$cache_id); |
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28 | |
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29 | return utf8_encode($html); |
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30 | } |
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31 | |
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32 | /** |
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33 | * helper to navigate throught the tree |
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34 | * @param: &array tree |
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35 | * @param: string path |
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36 | * @return: reference to a branch of the tree |
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37 | */ |
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38 | function &get_current_cat(&$tree, $path) |
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39 | { |
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40 | if (empty($path)) return $tree; |
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41 | |
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42 | $path = ltrim($path, '/'); |
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43 | $path = explode('/', $path); |
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44 | $current = &$tree[ $path[0] ]; |
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45 | array_shift($path); |
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46 | |
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47 | foreach ($path as $folder) |
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48 | { |
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49 | $current = &$current['categories'][$folder]; |
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50 | } |
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51 | |
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52 | return $current; |
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53 | } |
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54 | |
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55 | /** |
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56 | * check if give account (http://pbase.com/login/root) exists |
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57 | * @param: string url |
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58 | * @return: bool |
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59 | */ |
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60 | function check_account($url) |
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61 | { |
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62 | $html = get_file_cached($url); |
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63 | return !(bool)preg_match('#<h2>Unknown Account</h2>#i', $html); |
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64 | } |
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65 | |
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66 | /** |
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67 | * parse a category page |
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68 | * @param: string category url |
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69 | * @param: bool parse only sub-categories |
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70 | * @param: bool parse only one level |
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71 | * @return: array category |
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72 | */ |
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73 | function parse_category($url, $path, $cats_only=false, $one_level=false) |
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74 | { |
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75 | $url = str_replace('&page=all', null, $url); |
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76 | |
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77 | $current = array( |
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78 | 'url' => $url, |
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79 | 'path' => null, |
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80 | 'id' => null, |
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81 | ); |
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82 | |
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83 | // id |
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84 | $temp = parse_url($url); |
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85 | $temp = explode('/', $temp['path']); |
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86 | $current['id'] = $temp[ count($temp)-1 ]; |
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87 | $current['path'] = $path.'/'.$current['id']; |
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88 | |
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89 | if ($one_level === 'stop') |
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90 | { |
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91 | return $current; |
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92 | } |
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93 | |
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94 | $current = array_merge($current, array( |
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95 | 'title' => null, |
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96 | 'description' => null, |
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97 | 'pictures' => array(), |
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98 | 'categories' => array(), |
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99 | 'nb_pictures' => 0, |
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100 | 'nb_categories' => 0, |
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101 | )); |
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102 | |
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103 | |
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104 | $url.= '&page=all'; // seriously... (should be ? not &) |
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105 | |
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106 | |
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107 | $html = get_file_cached($url); |
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108 | if ($html == 'file_error') |
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109 | { |
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110 | return $current; |
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111 | } |
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112 | |
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113 | preg_match('#<body>(.*)</body>#is', $html, $matches); |
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114 | $body = $matches[1]; |
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115 | |
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116 | // content |
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117 | // if (preg_match('#<CENTER>(.*)</CENTER>#is', $body, $matches) === 0) return 'null1'; |
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118 | if (preg_match_all('#<A HREF="([^">]*)" class="thumbnail">#i', $body, $matches) === 0) return $current; |
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119 | $links = $matches[1]; |
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120 | |
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121 | // title |
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122 | if (preg_match('#<h2>(.*?)</h2>#i', $body, $matches)) |
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123 | { |
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124 | $current['title'] = trim($matches[1]); |
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125 | } |
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126 | else |
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127 | { |
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128 | $current['title'] = $current['id']; |
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129 | } |
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130 | |
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131 | // description |
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132 | if (preg_match('#<!-- BEGIN user desc -->(.*?)<!-- END user desc -->#s', $body, $matches)) |
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133 | { |
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134 | $current['description'] = trim($matches[1]); |
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135 | } |
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136 | |
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137 | // sub-cats and pictures |
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138 | foreach ($links as $link) |
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139 | { |
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140 | if (strpos($link, '/image/') !== false) |
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141 | { |
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142 | if (($image = parse_image($link, $cats_only)) !== null) |
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143 | { |
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144 | $current['pictures'][ $image['id'] ] = $image; |
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145 | } |
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146 | $current['nb_pictures']++; |
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147 | } |
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148 | else |
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149 | { |
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150 | $next_level = ($one_level === true) ? 'stop' : false; |
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151 | if (($category = parse_category($link, $current['path'], $cats_only, $next_level)) !== null) |
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152 | { |
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153 | $current['categories'][ $category['id'] ] = $category; |
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154 | } |
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155 | $current['nb_categories']++; |
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156 | } |
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157 | } |
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158 | |
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159 | return $current; |
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160 | } |
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161 | |
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162 | /** |
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163 | * parse a picture page |
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164 | * @param: string picture url |
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165 | * @param: bool return only url and id |
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166 | * @return: array picture |
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167 | */ |
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168 | function parse_image($url, $light=false) |
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169 | { |
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170 | $url = preg_replace('#/(small|medium|large|original)$#', null, $url); |
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171 | |
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172 | $current = array( |
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173 | 'url' => $url, |
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174 | 'id' => null, |
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175 | ); |
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176 | |
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177 | // id |
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178 | $temp = parse_url($url); |
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179 | $temp = explode('/', $temp['path']); |
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180 | $current['id'] = $temp[ count($temp)-1 ]; |
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181 | |
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182 | if ($light) |
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183 | { |
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184 | return $current; |
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185 | } |
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186 | |
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187 | $current = array_merge($current, array( |
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188 | 'title' => null, |
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189 | 'path' => null, |
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190 | 'description' => null, |
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191 | 'date' => null, |
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192 | 'author' => null, |
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193 | 'keywords' => array(), |
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194 | )); |
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195 | |
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196 | $url.= '/original'; |
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197 | |
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198 | |
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199 | $html = get_file_cached($url); |
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200 | if ($html == 'file_error') |
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201 | { |
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202 | return $current; |
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203 | } |
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204 | |
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205 | preg_match('#<body>(.*)</body>#is', $html, $matches); |
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206 | $body = $matches[1]; |
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207 | |
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208 | // path |
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209 | if (preg_match('#<IMG ([^>]*)class="display" src="([^">]*)"#i', $body, $matches) ===0) return null; |
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210 | $current['path'] = $matches[2]; |
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211 | |
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212 | // title |
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213 | preg_match('#<span class="title">(.*?)</span>#i', $body, $matches); |
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214 | if (!empty($matches[1])) |
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215 | { |
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216 | $current['title'] = trim($matches[1]); |
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217 | $current['title'] = get_filename_wo_extension($current['title']); |
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218 | } |
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219 | else |
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220 | { |
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221 | $current['title'] = $current['id']; |
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222 | } |
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223 | |
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224 | // description |
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225 | if (preg_match('#<p class="caption">(.*?)</p>#is', $body, $matches)) |
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226 | { |
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227 | $current['description'] = trim($matches[1]); |
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228 | } |
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229 | |
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230 | // date |
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231 | if (preg_match('#<span class=date>(.*?)</span>#i', $body, $matches)) |
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232 | { |
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233 | $current['date'] = trim($matches[1]); |
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234 | } |
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235 | |
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236 | // author |
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237 | if (preg_match('#<span class=artist>(.*?)</span>#i', $body, $matches)) |
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238 | { |
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239 | $current['author'] = trim($matches[1]); |
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240 | } |
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241 | |
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242 | |
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243 | preg_match('#<head>(.*)</head>#is', $html, $matches); |
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244 | $head = $matches[1]; |
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245 | |
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246 | // keywords |
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247 | if (preg_match('#<meta name="keywords" content="([^">]*)">#i', $head, $matches)) |
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248 | { |
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249 | $words = explode(',', $matches[1]); |
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250 | foreach ($words as $word) |
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251 | { |
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252 | if (!empty($word)) $current['keywords'][] = trim($word); |
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253 | } |
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254 | } |
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255 | |
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256 | return $current; |
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257 | } |
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258 | |
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259 | /** |
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260 | * print categories tree (list or select) |
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261 | * @param: array tree |
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262 | * @param: int level |
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263 | * @param: string tree type (list|select) |
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264 | * @return: string |
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265 | */ |
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266 | function print_tree(&$tree, $level=0, $type='list') |
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267 | { |
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268 | $out = ''; |
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269 | |
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270 | if ($type == 'list') |
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271 | { |
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272 | $out.= '<ul>'; |
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273 | foreach ($tree as $item) |
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274 | { |
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275 | $out.= '<li>'; |
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276 | $out.= '<a href="'.$item['url'].'">'.$item['title'].'</a> ['.$item['nb_pictures'].']'; |
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277 | if (!empty($item['categories'])) |
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278 | $out.= print_tree($item['categories'], $level+1, 'list'); |
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279 | $out.= '</li>'; |
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280 | } |
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281 | $out.= '</ul>'; |
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282 | } |
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283 | else if ($type == 'select') |
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284 | { |
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285 | $i=0; |
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286 | foreach ($tree as $item) |
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287 | { |
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288 | $out.= '<option value="'.$item['path'].'"'; |
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289 | if ($level==0 and $i==0) $out.= ' selected="selected"'; |
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290 | $out.= '>'; |
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291 | |
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292 | $out.= str_repeat(' ', $level*4); |
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293 | $out.= '- '.$item['title'].' ['.$item['nb_pictures'].']'; |
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294 | |
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295 | $out.= '</option>'; |
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296 | |
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297 | if (!empty($item['categories'])) |
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298 | $out.= print_tree($item['categories'], $level+1, 'select'); |
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299 | |
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300 | $i++; |
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301 | } |
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302 | } |
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303 | |
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304 | return $out; |
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305 | } |
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306 | |
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307 | /** |
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308 | * count pictures and cats in the selected cat |
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309 | * @param: &array tree |
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310 | * @param: string $path |
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311 | * @param: &int nb pictures |
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312 | * @param: &int nb categories |
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313 | * @param: bool recursive |
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314 | * @return: void |
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315 | */ |
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316 | function count_pictures_cats(&$tree, $path, &$nb_pictures, &$nb_categories, $recursive=true) |
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317 | { |
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318 | $current = &get_current_cat($tree, $path); |
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319 | $nb_pictures+= $current['nb_pictures']; |
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320 | $nb_categories++; |
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321 | |
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322 | if ( $recursive and !empty($current['categories']) ) |
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323 | { |
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324 | foreach ($current['categories'] as $cat) |
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325 | { |
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326 | count_pictures_cats($tree, $cat['path'], $nb_pictures, $nb_categories, $recursive); |
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327 | } |
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328 | } |
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329 | } |
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330 | |
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331 | /** |
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332 | * test if a download method is available |
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333 | * @return: bool |
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334 | */ |
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335 | if (!function_exists('test_remote_download')) |
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336 | { |
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337 | function test_remote_download() |
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338 | { |
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339 | return function_exists('curl_init') || ini_get('allow_url_fopen'); |
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340 | } |
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341 | } |
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342 | |
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343 | /** |
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344 | * download a remote file |
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345 | * - needs cURL or allow_url_fopen |
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346 | * - take care of SSL urls |
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347 | * |
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348 | * @param: string source url |
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349 | * @param: mixed destination file (if true, file content is returned) |
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350 | */ |
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351 | if (!function_exists('download_remote_file')) |
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352 | { |
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353 | function download_remote_file($src, $dest) |
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354 | { |
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355 | if (empty($src)) |
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356 | { |
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357 | return false; |
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358 | } |
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359 | |
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360 | $return = ($dest === true) ? true : false; |
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361 | |
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362 | /* curl */ |
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363 | if (function_exists('curl_init')) |
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364 | { |
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365 | if (!$return) |
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366 | { |
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367 | $newf = fopen($dest, "wb"); |
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368 | } |
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369 | $ch = curl_init(); |
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370 | |
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371 | curl_setopt($ch, CURLOPT_URL, $src); |
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372 | curl_setopt($ch, CURLOPT_HEADER, false); |
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373 | curl_setopt($ch, CURLOPT_HTTPHEADER, array("Accept-language: en")); |
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374 | curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)'); |
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375 | curl_setopt($ch, CURLOPT_TIMEOUT, 30); |
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376 | if (!ini_get('safe_mode')) |
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377 | { |
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378 | curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); |
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379 | curl_setopt($ch, CURLOPT_MAXREDIRS, 1); |
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380 | } |
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381 | if (strpos($src, 'https://') !== false) |
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382 | { |
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383 | curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0); |
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384 | curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0); |
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385 | } |
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386 | if (!$return) |
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387 | { |
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388 | curl_setopt($ch, CURLOPT_FILE, $newf); |
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389 | } |
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390 | else |
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391 | { |
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392 | curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); |
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393 | } |
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394 | |
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395 | $out = curl_exec($ch); |
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396 | curl_close($ch); |
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397 | |
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398 | if ($out === false) |
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399 | { |
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400 | return 'file_error'; |
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401 | } |
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402 | else if (!$return) |
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403 | { |
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404 | fclose($newf); |
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405 | return true; |
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406 | } |
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407 | else |
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408 | { |
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409 | return $out; |
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410 | } |
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411 | } |
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412 | /* file get content */ |
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413 | else if (ini_get('allow_url_fopen')) |
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414 | { |
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415 | if (strpos($src, 'https://') !== false and !extension_loaded('openssl')) |
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416 | { |
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417 | return false; |
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418 | } |
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419 | |
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420 | $opts = array( |
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421 | 'http' => array( |
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422 | 'method' => "GET", |
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423 | 'user_agent' => 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)', |
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424 | 'header' => "Accept-language: en", |
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425 | ) |
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426 | ); |
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427 | |
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428 | $context = stream_context_create($opts); |
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429 | |
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430 | if (($file = file_get_contents($src, false, $context)) === false) |
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431 | { |
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432 | return 'file_error'; |
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433 | } |
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434 | |
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435 | if (!$return) |
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436 | { |
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437 | file_put_contents($dest, $file); |
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438 | return true; |
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439 | } |
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440 | else |
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441 | { |
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442 | return $file; |
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443 | } |
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444 | } |
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445 | |
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446 | return false; |
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447 | } |
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448 | } |
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449 | |
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450 | /** |
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451 | * extract unique values of the specified key in a two dimensional array |
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452 | * @param: array |
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453 | * @param: mixed key name |
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454 | * @return: array |
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455 | */ |
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456 | if (!function_exists('array_unique_deep')) |
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457 | { |
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458 | function array_unique_deep(&$array, $key) |
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459 | { |
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460 | $values = array(); |
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461 | foreach ($array as $k1 => $row) |
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462 | { |
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463 | foreach ($row as $k2 => $v) |
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464 | { |
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465 | if ($k2 == $key) |
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466 | { |
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467 | $values[ $k1 ] = $v; |
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468 | continue; |
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469 | } |
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470 | } |
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471 | } |
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472 | return array_unique($values); |
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473 | } |
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474 | } |
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475 | |
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476 | /** |
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477 | * search a string in array values |
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478 | * // http://www.strangeplanet.fr/blog/dev/php-une-fonction-pour-rechercher-dans-un-tableau |
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479 | * @param string needle |
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480 | * @param array haystack |
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481 | * @param bool return all instances |
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482 | * @param bool search in PCRE mode |
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483 | * @return key or array of keys |
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484 | */ |
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485 | if (!function_exists('array_pos')) |
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486 | { |
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487 | function array_pos($needle, &$haystack, $match_all=false, $preg_mode=false) |
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488 | { |
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489 | if ($match_all) $matches = array(); |
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490 | |
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491 | foreach ($haystack as $i => $row) |
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492 | { |
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493 | if (!is_array($row)) |
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494 | { |
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495 | if (!$preg_mode) |
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496 | { |
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497 | if (strpos($row, $needle) !== false) |
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498 | { |
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499 | if (!$match_all) return $i; |
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500 | else array_push($matches, $i); |
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501 | } |
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502 | } |
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503 | else |
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504 | { |
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505 | if (preg_match($needle, $row) === 1) |
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506 | { |
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507 | if (!$match_all) return $i; |
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508 | else array_push($matches, $i); |
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509 | } |
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510 | } |
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511 | } |
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512 | } |
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513 | |
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514 | if ( !$match_all or !count($matches) ) return false; |
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515 | return $matches; |
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516 | } |
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517 | } |
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