metadata.php

<?php
define("SERVER_NAME", ""); //Leave blank for PROTOCOL_VER 1.3 and above
define("PROTOCOL_VER", "1.9");
define("IMAGE_WIDTH", "300"); // Leave blank if thumbnail zipping is not required
define("IMAGE_QUALITY", "50");
if (empty($argv)) $argv = array();
$isCLI = (in_array("cli", $argv) || strpos(php_sapi_name(), "cli")!==false); 
$isTemp = in_array("temp", $argv);
//php-cgi called from cli with additional parameter
if ($isCLI){
    header_remove();
    echo "Do not forget to check for update from https://github.com/BVEContentService/MetadataGenerator regularly!\n";
}
if (basename(__FILE__) == basename($_SERVER["SCRIPT_FILENAME"]) || $isCLI){
    if (isset($_GET["act"])){
        print("<button onclick=\"location.href='metadata.php'\">返回</a></button>");
        onFileUpdate(true, $isTemp);
    } else {
        $needRefresh = ($isCLI && !in_array("cron", $argv));
        if (is_file("index/packs.json") && is_file("index/authors.json")){
            //echo "<table>";
            $metadataTime = min(filemtime("index/packs.json"), filemtime("index/authors.json"));
            foreach (glob("*", GLOB_ONLYDIR) as $author) {
                if (strpos($author,".")===false) continue;
                foreach (RScanDir($author,"",true) as $file){
                    //echo "<tr><td>".date("m-d H:i:s", filemtime($file))."</td><td>".$file."</td></tr>";
                    if (filemtime($file) > $metadataTime){
                        $needRefresh = true;
                        break;
                    }
                }
            }
            //echo "<tr><td>".date("m-d H:i:s", filemtime("."))."</td><td>.</td></tr>";
            if (filemtime(".") > $metadataTime) $needRefresh = true;
            //echo "</table>";
        } else {
            $needRefresh = true;
        }
        if ($needRefresh){
            onFileUpdate($isCLI, $isTemp);
            if (!$isCLI){
                print("<button onclick=\"location.href='index.php'\">返回</a></button>");
                print("<p>元数据刷新成功!</p>");
            }
        } else if (!$isCLI) {
            print("<button onclick=\"location.href='metadata.php?act'\">刷新</a></button>");
            print("<p>未检测到新文件。</p>");
            print("<p>按钮强制手动刷新。</p>");
        }
    }
}

function onFileUpdate($debug = false, $isTemp = false){
    $archs = array("ob", "h2", "b5");
    $metadata = array();
    $maintainers = array();
    if ($debug) echo "<ol>\n";
    if (!empty(PROTOCOL_VER)){
        //For the fucking backward compatibility.
        $verInfo = array();
        $verInfo["ID"] = "__PROTOCOL_VERSION";
        $verInfo["Name_LO"] = PROTOCOL_VER;
        $verInfo["Name_EN"] = PROTOCOL_VER;
        array_push($maintainers, $verInfo);
    }
    foreach (glob("*", GLOB_ONLYDIR) as $author) {
        if (!is_file($author."/author.ini")) continue;
        if ($debug) echo "<li>".$author."</li><ol>\n";
        $authordata = processName(parse_ini_string(
        characet(file_get_contents($author."/author.ini"))), false);
        if ($authordata === null) continue;
        tryFile($authordata, "Description", $author."/author.txt");
        tryFile($authordata, "Description", $author."/author.html");
        $authordata["ID"] = implode("@", explode(".", $author, 2));
        foreach (RScanDir($author, ".ini") as $packset){
            if ($packset == $author."/author.ini") continue;
            $packdata = processName(parse_ini_string(characet(file_get_contents($packset))), true);
            if ($packdata === null) continue;
            $nameparts = explode("_", basename($packset, ".ini"));
            $pnwve = dirname($packset)."/".$nameparts[0];
            if (count($nameparts) < 2) continue;
            if ($debug) echo "<li>".$packset."</li><ol>\n";
            tryImage($packdata, "Thumbnail", $pnwve.".jpg");
            tryImage($packdata, "Thumbnail", $pnwve.".png");
            tryImage($packdata, "Thumbnail", file_ext_replace($packset,".jpg"));
            tryImage($packdata, "Thumbnail", file_ext_replace($packset,".png"));
            tryFile($packdata, "Description", $pnwve.".txt");
            tryFile($packdata, "Description", $pnwve.".html");
            tryFile($packdata, "Description", file_ext_replace($packset,".txt"));
            tryFile($packdata, "Description", file_ext_replace($packset,".html"));
            $packdata["ID"] = $nameparts[0]; $packdata["Version"] = $nameparts[1];
            $packdata["Author"] = $authordata["ID"];
            $packdata["TimeStamp"] = filemtime($packset);
            foreach ($archs as $arch){
                $archpack = file_ext_replace($packset,"_".$arch.".zip");
                if (!is_file($archpack)) continue;
                if ($debug) echo "<li>".$archpack."</li>\n";
                $packdata["FileSize_".strtoupper($arch)] = filesize_formatted($archpack);
                $packdata["File_".strtoupper($arch)] = SERVER_NAME."/".spaceEncode($archpack);            
            }
            array_push($metadata, $packdata);
            if ($debug) echo "</ol>\n";
        }
        array_push($maintainers, $authordata);
        if ($debug) echo "</ol>\n";
    }
    if (!is_dir("index")) mkdir("index");
    usort($metadata, "packageSort");
    if ($isTemp){
        file_put_contents("index/authors.gen.json", json_encode($maintainers));
        file_put_contents("index/packs.gen.json", json_encode($metadata));
    } else {
        file_put_contents("index/authors.json", json_encode($maintainers));
        file_put_contents("index/packs.json", json_encode($metadata));
    }
    if ($debug) echo "</ol>\n";
}

function tryFile(&$target, $key, $file){
    if (is_file($file)){
        $target[$key]=SERVER_NAME."/".spaceEncode($file);
    }
}

function tryImage(&$target, $key, $file){
    if (is_file($file)){
        $target[$key]=SERVER_NAME."/".spaceEncode($file);
        if (empty(IMAGE_WIDTH)) return;
        $newFile = file_ext_replace($file, ".thumb.jpg");
        if (is_file($newFile) && filemtime($newFile)>=filemtime($file)){
            $target[$key."LQ"]=SERVER_NAME."/".spaceEncode($newFile);
            return;
        }
        list($width, $height) = getimagesize($file);
        //if ($width==IMAGE_WIDTH) return;
        if (endWith($file, ".png")) $src = imagecreatefrompng($file);
        else if (endWith($file, ".jpg")) $src = imagecreatefromjpeg($file);
        else return;
        $newHeight = $height * IMAGE_WIDTH / $width;
        $dst = imagecreatetruecolor(IMAGE_WIDTH, $newHeight);
        imagecopyresampled($dst, $src, 0, 0, 0, 0, IMAGE_WIDTH, $newHeight, $width, $height);
        imagejpeg($dst, $newFile, IMAGE_QUALITY);
        $target[$key."LQ"]=SERVER_NAME."/".spaceEncode($newFile);
    }
}

function spaceEncode($url){
    return str_replace(" ","%20",$url);
}

function filesize_formatted($path){
    $size = filesize($path);
    $units = array( 'B', 'KB', 'MB', 'GB', 'TB', 'PB'); //This should be enough
    $power = $size > 0 ? floor(log($size, 1024)) : 0;
    return number_format($size / pow(1024, $power), 2, '.', ',') . ' ' . $units[$power];
}

function processName($packdata, $route){
    if ($route){
        $filter = array("Name_LO", "Name_EN", "Name_SA", 
        "Origin_LO", "Origin_EN", "Origin_SA",
        "Homepage", "Description", "NoFile", "AutoOpen", "ForceView", "GuidedDownload",
        "File_H2", "File_OB", "File_B5",
        "FileSize_H2", "FileSize_OB", "FileSize_B5",
        "Referer_H2", "Referer_OB", "Referer_B5");
        $default = array("ID"=>"", "Description"=>"",
        "Version"=>"1.0", "Author"=>"", "TimeStamp"=>0);
        if (!processLOEN($packdata, "Name")) return null;
        processLOEN($packdata, "Origin");
        processBool($packdata, "NoFile");
        processBool($packdata, "AutoOpen");
        processBool($packdata, "ForceView");
        processBool($packdata, "GuidedDownload");
    } else {
        $filter = array("Name_LO", "Name_EN", "Name_SA", "Homepage", "Description");
        $default = array("ID"=>"", "Description"=>"");
        if (!processLOEN($packdata, "Name")) return null;
    }
    return array_merge($default, array_intersect_key($packdata, array_flip($filter)));
}

function processLOEN(&$packdata, $tag){
    if (isset($packdata[$tag."_LO"]) && isset($packdata[$tag."_EN"])){
        
    } else if (isset($packdata[$tag."_LO"])){
        $packdata[$tag."_EN"] = $packdata[$tag."_LO"];
    } else if (isset($packdata[$tag."_EN"])){
        $packdata[$tag."_LO"] = $packdata[$tag."_EN"];
    } else {
        return false;
    }
    return true;
}

function processBool(&$packdata, $tag){
    if (isset($packdata[$tag])){
        $packdata[$tag] = ($packdata[$tag] == "1" || strtolower($packdata[$tag]) == "true");
    }
}

function packageSort($a, $b){
    if ($a["Author"]!=$b["Author"]) return strcmp($a["Author"], $b["Author"]);
    if ($a["Name_EN"]!=$b["Name_EN"]) return strcmp($a["Name_EN"], $b["Name_EN"]);
    return -version_compare($a["Version"], $b["Version"]);
}

function file_ext_replace($filename, $newext){
    return preg_replace('/.[^.]*$/', $newext, $filename);
}

function endWith($haystack, $needle) {   
    $length = strlen($needle);  
    if($length == 0){    
      return true;  
    }  
    return (substr($haystack, -$length) === $needle);
}

function characet($data){
  if( !empty($data) ){   
    $fileType = mb_detect_encoding($data , array('UTF-8','GBK','LATIN1','BIG5')) ;  
    if( $fileType != 'UTF-8'){  
      $data = mb_convert_encoding($data ,'utf-8' , $fileType);  
    }  
  }  
  return $data;   
}

function RScanDir($dir, $ext="", $includeDir = false){
    $file_arr = scandir($dir);
    $files = array();
    foreach($file_arr as $item){
        if($item!=".." && $item !="." && $item[0]!="."){
            if(is_dir($dir."/".$item)){
                if ($includeDir) array_push($files, $dir."/".$item);
                foreach (RScanDir($dir."/".$item, $ext) as $item){
                    array_push($files, $item);
                }
            }else{
                if (endWith($item, $ext)) array_push($files, $dir."/".$item);
            }
        }
    }
    if ($includeDir) array_push($files, $dir);
    return $files;
}
?>