<?php /*============================*/ /* Gallery address definition */ /*============================*/ if (!empty($_SERVER['REQUEST_SCHEME'])) { $g_protocol = $_SERVER['REQUEST_SCHEME']; } elseif (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') { $g_protocol = 'https'; } else { $g_protocol = 'http'; } $g_host = $_SERVER['HTTP_HOST']; $g_port = $_SERVER['SERVER_PORT']; $g_path = dirname($_SERVER['REQUEST_URI']); // remove default ports if (($g_protocol == 'https' && $g_port == '443') || ($g_protocol == 'http' && $g_port == '80')) { $g_port = ''; } else { $g_port = ':' . $g_port; } if ($g_path[0] != '/') { $g_path = '/' . $g_path; } $gallery_link = $g_protocol . '://' . $g_host . $g_port . $g_path; /*===================*/ /* Functions */ /*===================*/ # Hardly inspired from here : codes-sources.commentcamarche.net/source/35937-creation-d-une-arborescenceI # Listing all files of a folder and sub folders. function ListFiles($gallery_link, &$content, $Folder, $SkipFileExts, $SkipObjects) { $dir = opendir($Folder); // Loop on all contained on the folder while (false !== ($Current = readdir($dir))) { if ($Current !='.' && $Current != '..' && in_array($Current, $SkipObjects) === false) { if (is_dir($Folder.'/'.$Current)) { ListFiles($gallery_link, $content, $Folder . '/' . $Current, $SkipFileExts, $SkipObjects); } else { $FileExt = strtolower(substr(strrchr($Current, '.'), 1)); // Should we display this extension ? if (in_array($FileExt, $SkipFileExts) === false) { $current_adress = $gallery_link . "/" . $Folder.'/'. $Current; $content .= $current_adress. "\n"; } } } } closedir($dir); return $content; } # Paul's Simple Diff Algorithm v 0.1 : http://paulbutler.org/archives/a-simple-diff-algorithm-in-php/ function diff($old, $new) { $matrix = array(); $maxlen = 0; foreach ($old as $oindex => $ovalue) { $nkeys = array_keys($new, $ovalue); foreach ($nkeys as $nindex) { $matrix[$oindex][$nindex] = isset($matrix[$oindex - 1][$nindex - 1]) ? $matrix[$oindex - 1][$nindex - 1] + 1 : 1; if ($matrix[$oindex][$nindex] > $maxlen) { $maxlen = $matrix[$oindex][$nindex]; $omax = $oindex + 1 - $maxlen; $nmax = $nindex + 1 - $maxlen; } } } if ($maxlen == 0) return array(array('d'=>$old, 'i'=>$new)); return array_merge( diff(array_slice($old, 0, $omax), array_slice($new, 0, $nmax)), array_slice($new, $nmax, $maxlen), diff(array_slice($old, $omax + $maxlen), array_slice($new, $nmax + $maxlen))); } function print_array($array_to_display) { echo '<pre>'; print_r($array_to_display); echo '</pre>'; } /*===================*/ /* Variables */ /*===================*/ require("config-default.php"); include("config.php"); $content = ""; $folder = "photos"; $content = listFiles($gallery_link, $content, $folder, $SkipExts, $SkipObjects); if (is_writeable(".")) { $to_store = ""; $old_files_list = "db_old_files"; //list of files in ./photos $db_feed_source = "db_feed_source"; $db_rss_timestamp = "db_rss_timestamp"; // Init files if (!file_exists($old_files_list)) { file_put_contents($old_files_list, ""); } if (!file_exists($db_feed_source)) { file_put_contents($db_feed_source, ""); } if (!file_exists($db_rss_timestamp)) { file_put_contents($db_rss_timestamp, ""); } /*===================*/ /* Computing */ /*===================*/ #Todo : ajouter une condition : dois-je regénérer le flux ou utiliser les anciens fichiers ? $temp = file_get_contents($db_feed_source); $last_rss_gen = file_get_contents($db_rss_timestamp); $current_time = time(); // If the RSS generation is already launched, don't do a second generation at the same time if (($current_time - $last_rss_gen) > $rss_refresh_interval && file_exists("rss.locker") == false) { file_put_contents("rss.locker", ""); file_put_contents($db_rss_timestamp, time()); // Load the list from files. $old_files_list_content = explode("\n", file_get_contents($old_files_list)); $new_files_list_content = explode("\n", $content); #debug // Generate and stock new elements $differences = diff($old_files_list_content, $new_files_list_content); for ($i=0; $i < count($differences); $i++) { if (is_array($differences[$i])) { for ($j=0; $j < count($differences[$i]["i"]); $j++) { if (strlen($differences[$i]["i"][$j]) > 2) { $to_store .= $differences[$i]["i"][$j] . "\n"; } } } } // Add new elements at the top of the feed's source $temp = $to_store . $temp; file_put_contents($db_feed_source, $temp); // Store the current file list for the next generation file_put_contents($old_files_list, $content); unlink("rss.locker"); } $content = $temp; } /*===================*/ /* XML Gen */ /*===================*/ header('Content-Type: text/xml'); $temp = explode("\n", $content); echo "<?xml version='1.0' encoding='UTF-8 '?>\n"; echo "<rss version='2.0'>\n<channel>"; echo "<title>$title</title>"; echo "<link>$gallery_link</link>"; echo "<description>$description</description>\n"; for ($i=0; $i < $nb_items_rss && $i < count($temp); $i++) { if (empty($temp[$i])) continue; echo "<item>\n"; echo " <title>" . basename($temp[$i]) . "</title>\n"; echo " <link>". $temp[$i] . "</link>\n"; echo " <guid>". $temp[$i] . "</guid>\n"; echo " <description><![CDATA[ <img src='" . $temp[$i] . "'> ]]></description>\n"; echo "</item>\n"; } echo "</channel></rss>\n";