409 lines
12 KiB
PHP
409 lines
12 KiB
PHP
<?php
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/**
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* ManifestBuilder
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*
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* The manifest file is a PHP include that contains global variables that
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* represent the collected contents of the application:
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* - all classes
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* - all templates
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* - all _config.php files
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*
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* Traversing the filesystem to collect this information on everypage.
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* This information is cached so that it need not be regenerated on every
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* pageview.
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*/
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/**
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* Define a constant for the name of the manifest file
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*/
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define("MANIFEST_FILE", TEMP_FOLDER . "/manifest" . str_replace(array("/",":", "\\"),"_", $_SERVER['SCRIPT_FILENAME']));
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/**
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* ManifestBuilder
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*
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* The ManifestBuilder class generates the manifest file and keeps it fresh.
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*/
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class ManifestBuilder {
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static $restrict_to_modules = array();
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/**
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* @var array $ignore_files Full filenames (without directory-path) which
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* should be ignored by the manifest.
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*/
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public static $ignore_files = array(
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'main.php',
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'cli-script.php',
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'install.php',
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'index.php',
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'check-php.php',
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'rewritetest.php'
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);
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/**
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* @var array $ignore_folders Foldernames (without path) which
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* should be ignored by the manifest.
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*/
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public static $ignore_folders = array(
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'mysql',
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'assets',
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'shortstat',
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'HTML',
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);
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/**
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* Returns true if the manifest file should be regenerated
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*
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* @return bool Returns TRUE if the manifest file should be regenerated,
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* otherwise FALSE.
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*/
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static function staleManifest() {
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/*if(Director::isDev() || Director::isTest())
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$lastEdited = Filesystem::folderModTime(".", array('ss','php'));
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else*/
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$lastEdited = filemtime("../");
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return !file_exists(MANIFEST_FILE)
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|| (filemtime(MANIFEST_FILE) < $lastEdited)
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|| (filemtime(MANIFEST_FILE) < time() - 3600)
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|| isset($_GET['buildmanifest']) || isset($_GET['flush']);
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}
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/**
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* Generates a new manifest file and saves it to {@link MANIFEST_FILE}
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*/
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static function compileManifest() {
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// Config manifest
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$baseDir = dirname($_SERVER['SCRIPT_FILENAME']) . "/..";
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$baseDir = ereg_replace("/[^/]+/\\.\\.", "", $baseDir);
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// locate and include the exclude files
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$topLevel = scandir($baseDir);
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foreach($topLevel as $file) {
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$fullPath = $baseDir . '/' . $file;
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if(is_dir($fullPath . '/') && file_exists($fullPath . '/_exclude.php'))
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require_once($fullPath . '/_exclude.php');
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}
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// Class manifest
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$classManifest = array();
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if(is_array(self::$restrict_to_modules) && count(self::$restrict_to_modules)) {
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// $restrict_to_modules is set, so we include only those specified
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// modules
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foreach(self::$restrict_to_modules as $module)
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ManifestBuilder::getClassManifest($baseDir . '/' . $module,
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$classManifest);
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} else {
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// Include all directories which have an _config.php file but don't
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// have an _manifest_exclude file
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$topLevel = scandir($baseDir);
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foreach($topLevel as $filename) {
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if(is_dir("$baseDir/$filename") &&
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file_exists("$baseDir/$filename/_config.php") &&
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!file_exists("$baseDir/$filename/_manifest_exclude")) {
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ManifestBuilder::getClassManifest("$baseDir/$filename",
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$classManifest);
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}
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}
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}
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$manifest = "\$_CLASS_MANIFEST = " . var_export($classManifest, true) .
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";\n";
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// Load the manifest in, so that the autoloader works
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global $_CLASS_MANIFEST;
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$_CLASS_MANIFEST = $classManifest;
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// _config.php manifest
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global $databaseConfig;
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$topLevel = scandir($baseDir);
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foreach($topLevel as $filename) {
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if(is_dir("$baseDir/$filename/") &&
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file_exists("$baseDir/$filename/_config.php") &&
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!file_exists("$baseDir/$filename/_manifest_exclude")) {
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$manifest .= "require_once(\"$baseDir/$filename/_config.php\");\n";
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// Include this so that we're set up for connecting to the database
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// in the rest of the manifest builder
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require_once("$baseDir/$filename/_config.php");
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}
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}
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if(!project())
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user_error("\$project isn't set", E_USER_WARNING);
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// Template & CSS manifest
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$templateManifest = array();
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$cssManifest = array();
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// Only include directories if they have an _config.php file
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$topLevel = scandir($baseDir);
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foreach($topLevel as $filename) {
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if(substr($filename,0,1) == '.') continue;
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if($filename != 'themes' && is_dir("$baseDir/$filename") && file_exists("$baseDir/$filename/_config.php")) {
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ManifestBuilder::getTemplateManifest($baseDir, $filename, $templateManifest, $cssManifest);
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}
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}
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// Get themes
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if(file_exists("$baseDir/themes")) {
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$themeDirs = scandir("$baseDir/themes");
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foreach($themeDirs as $themeDir) {
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if(substr($themeDir,0,1) == '.') continue;
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// The theme something_forum is understood as being a part of the theme something
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$themeName = strtok($themeDir, '_');
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ManifestBuilder::getTemplateManifest($baseDir, "themes/$themeDir", $templateManifest, $cssManifest, $themeName);
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}
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}
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// Ensure that any custom templates get favoured
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ManifestBuilder::getTemplateManifest($baseDir, project(), $templateManifest, $cssManifest);
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$manifest .= "\$_TEMPLATE_MANIFEST = " . var_export($templateManifest, true) . ";\n";
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$manifest .= "\$_CSS_MANIFEST = " . var_export($cssManifest, true) . ";\n";
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DB::connect($databaseConfig);
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// Database manifest
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$allClasses = ManifestBuilder::allClasses($classManifest);
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$manifest .= "\$_ALL_CLASSES = " . var_export($allClasses, true) . ";\n";
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global $_ALL_CLASSES;
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$_ALL_CLASSES = $allClasses;
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// Write manifest to disk
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$manifest = "<?php\n$manifest\n?>";
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if($fh = fopen(MANIFEST_FILE, "w")) {
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fwrite($fh, $manifest);
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fclose($fh);
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} else {
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die("Cannot write manifest file! Check permissions of " .
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MANIFEST_FILE);
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}
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}
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/**
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* Generates the class manifest - a list of all the PHP files in the
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* application
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*
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* @param string $folder The folder to traverse (recursively)
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* @pram array $classMap The already built class map
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*/
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private static function getClassManifest($folder, &$classMap) {
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$items = scandir($folder);
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if($items) foreach($items as $item) {
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// Skip some specific PHP files
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if(in_array($item, self::$ignore_files)) continue;
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// ignore hidden files and folders
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if(substr($item,0,1) == '.') continue;
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// ignore files without php-extension
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if(substr($item,-4) != '.php' && !is_dir("$folder/$item")) continue;
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// ignore files and folders with underscore-prefix
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if(substr($item,0,1) == '_') continue;
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// ignore certain directories
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if(is_dir("$folder/$item") && in_array($item, self::$ignore_folders)) continue;
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// ignore directories with _manifest_exlude file
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if(is_dir("$folder/$item") && file_exists("$folder/$item/_manifest_exclude")) continue;
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// i18n: ignore language files (loaded on demand)
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if($item == 'lang' && is_dir("$folder/$item") && ereg_replace("/[^/]+/\\.\\.","",$folder.'/..') == Director::baseFolder()) continue;
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if(is_dir("$folder/$item")) {
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// recurse into directories (if not in $ignore_folders)
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ManifestBuilder::getClassManifest("$folder/$item", $classMap);
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} else {
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// include item in the manifest
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$itemCode = substr($item,0,-4);
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// if $itemCode is already in manifest, check if the two files do really contain the same class
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if($classMap && array_key_exists($itemCode, $classMap)) {
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$regex = '/class\s' . $itemCode .'/';
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if(
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preg_match($regex, file_get_contents("$folder/$item"))
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&& preg_match($regex, file_get_contents($classMap[$itemCode]))
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) {
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user_error("Warning: there are two '$itemCode' files both containing the same class: '$folder/$item' and '{$classMap[$itemCode]}'.
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This might mean that the wrong code is being used.", E_USER_WARNING);
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} else {
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user_error("Warning: there are two '$itemCode' files with the same filename: '$folder/$item' and '{$classMap[$itemCode]}'.
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This might mean that the wrong code is being used.", E_USER_NOTICE);
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}
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} else {
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$classMap[$itemCode] = "$folder/$item";
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}
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}
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}
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}
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/**
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* Generates the template manifest - a list of all the .SS files in the
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* application
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*/
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private static function getTemplateManifest($baseDir, $folder, &$templateManifest, &$cssManifest, $themeName = null) {
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$items = scandir("$baseDir/$folder");
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if($items) foreach($items as $item) {
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if(substr($item,0,1) == '.') continue;
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if(substr($item,-3) == '.ss') {
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$templateName = substr($item, 0, -3);
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$templateType = substr($folder,strrpos($folder,'/')+1);
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if($templateType == "templates") $templateType = "main";
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if($themeName) {
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$templateManifest[$templateName]['themes'][$themeName][$templateType] = "$baseDir/$folder/$item";
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} else {
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$templateManifest[$templateName][$templateType] = "$baseDir/$folder/$item";
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}
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} else if(substr($item,-4) == '.css') {
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$cssName = substr($item, 0, -4);
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// Debug::message($item);
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if($themeName) {
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$cssManifest[$cssName]['themes'][$themeName] = "$folder/$item";
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} else {
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$cssManifest[$cssName]['unthemed'] = "$folder/$item";
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}
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} else if(is_dir("$baseDir/$folder/$item")) {
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ManifestBuilder::getTemplateManifest($baseDir, "$folder/$item", $templateManifest, $cssManifest, $themeName);
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}
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}
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}
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/**
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* Include everything, so that actually *all* classes are available and
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* build a map of classes and their subclasses and the information if
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* the class has a database table
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*
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* @return array Returns an array that holds all class relevant
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* information.
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*/
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private static function allClasses($classManifest) {
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// Include everything, so we actually have *all* classes
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foreach($classManifest as $file) {
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$b = basename($file);
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if($b != 'cli-script.php' && $b != 'main.php')
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include_once($file);
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}
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if(DB::isActive()) {
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$tables = DB::getConn()->tableList();
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} else {
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$tables = array();
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}
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$allClasses['hastable'] = array();
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// Build a map of classes and their subclasses
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$_classes = get_declared_classes();
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foreach($_classes as $class) {
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$allClasses['exists'][$class] = $class;
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if(isset($tables[strtolower($class)]))
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$allClasses['hastable'][$class] = $class;
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foreach($_classes as $subclass) {
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if(is_subclass_of($class, $subclass))
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$allClasses['parents'][$class][$subclass] = $subclass;
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if(is_subclass_of($subclass, $class))
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$allClasses['children'][$class][$subclass] = $subclass;
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}
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}
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return $allClasses;
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}
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/**
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* Include all files of the class manifest so that that actually *all*
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* classes are available
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*/
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static function includeEverything() {
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global $_CLASS_MANIFEST;
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foreach($_CLASS_MANIFEST as $filename) {
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if(preg_match('/.*cli-script\.php$/', $filename))
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continue;
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require_once($filename);
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}
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}
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/**
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* Updates the active table list in the class info in the manifest, but leaves everything else as-is.
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* Much quicker to run than compileManifest :-)
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*/
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static function update_db_tables() {
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global $_ALL_CLASSES;
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$_ALL_CLASSES['hastable'] = array();
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$tables = DB::getConn()->tableList();
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// We need to iterate through the full class lists, because the table names come out in lowercase
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foreach($_ALL_CLASSES['exists'] as $class) {
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if(isset($tables[strtolower($class)])) $_ALL_CLASSES['hastable'][$class] = $class;
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}
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self::write_manifest();
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}
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/**
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* Write the manifest file, containing the updated values in the applicable globals
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*/
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static function write_manifest() {
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global $_CLASS_MANIFEST, $_TEMPLATE_MANIFEST, $_CSS_MANIFEST, $_ALL_CLASSES;
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$manifest = "\$_CLASS_MANIFEST = " . var_export($_CLASS_MANIFEST, true) . ";\n";
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// Config manifest
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$baseDir = dirname($_SERVER['SCRIPT_FILENAME']) . "/..";
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$baseDir = ereg_replace("/[^/]+/\\.\\.","",$baseDir);
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$topLevel = scandir($baseDir);
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foreach($topLevel as $filename) {
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if(is_dir("$baseDir/$filename/") && file_exists("$baseDir/$filename/_config.php")) {
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$manifest .= "require_once(\"$baseDir/$filename/_config.php\");\n";
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}
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}
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$manifest .= "\$_TEMPLATE_MANIFEST = " . var_export($_TEMPLATE_MANIFEST, true) . ";\n";
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$manifest .= "\$_CSS_MANIFEST = " . var_export($_CSS_MANIFEST, true) . ";\n";
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$manifest .= "\$_ALL_CLASSES = " . var_export($_ALL_CLASSES, true) . ";\n";
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$manifest = "<?php\n$manifest\n?>";
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if($fh = fopen(MANIFEST_FILE,"w")) {
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fwrite($fh, $manifest);
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fclose($fh);
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} else {
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die("Cannot write manifest file! Check permissions of " . MANIFEST_FILE);
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}
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}
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}
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?>
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