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authorMike Macgirvin <mike@macgirvin.com>2010-09-08 20:14:17 -0700
committerMike Macgirvin <mike@macgirvin.com>2010-09-08 20:14:17 -0700
commitffb1997902facb36b78a7cfa522f41f2b3d71cda (patch)
treee9fe47acf26c5fd2c742677f2610b60d3008eb26 /library/HTMLPurifier/Bootstrap.php
parentb49858b038a0a05bbe7685929e88071d0e125538 (diff)
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mistpark 2.0 infrasturcture lands
Diffstat (limited to 'library/HTMLPurifier/Bootstrap.php')
-rw-r--r--library/HTMLPurifier/Bootstrap.php98
1 files changed, 98 insertions, 0 deletions
diff --git a/library/HTMLPurifier/Bootstrap.php b/library/HTMLPurifier/Bootstrap.php
new file mode 100644
index 000000000..559f61a23
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+++ b/library/HTMLPurifier/Bootstrap.php
@@ -0,0 +1,98 @@
+<?php
+
+// constants are slow, so we use as few as possible
+if (!defined('HTMLPURIFIER_PREFIX')) {
+ define('HTMLPURIFIER_PREFIX', realpath(dirname(__FILE__) . '/..'));
+}
+
+// accomodations for versions earlier than 5.0.2
+// borrowed from PHP_Compat, LGPL licensed, by Aidan Lister <aidan@php.net>
+if (!defined('PHP_EOL')) {
+ switch (strtoupper(substr(PHP_OS, 0, 3))) {
+ case 'WIN':
+ define('PHP_EOL', "\r\n");
+ break;
+ case 'DAR':
+ define('PHP_EOL', "\r");
+ break;
+ default:
+ define('PHP_EOL', "\n");
+ }
+}
+
+/**
+ * Bootstrap class that contains meta-functionality for HTML Purifier such as
+ * the autoload function.
+ *
+ * @note
+ * This class may be used without any other files from HTML Purifier.
+ */
+class HTMLPurifier_Bootstrap
+{
+
+ /**
+ * Autoload function for HTML Purifier
+ * @param $class Class to load
+ */
+ public static function autoload($class) {
+ $file = HTMLPurifier_Bootstrap::getPath($class);
+ if (!$file) return false;
+ require HTMLPURIFIER_PREFIX . '/' . $file;
+ return true;
+ }
+
+ /**
+ * Returns the path for a specific class.
+ */
+ public static function getPath($class) {
+ if (strncmp('HTMLPurifier', $class, 12) !== 0) return false;
+ // Custom implementations
+ if (strncmp('HTMLPurifier_Language_', $class, 22) === 0) {
+ $code = str_replace('_', '-', substr($class, 22));
+ $file = 'HTMLPurifier/Language/classes/' . $code . '.php';
+ } else {
+ $file = str_replace('_', '/', $class) . '.php';
+ }
+ if (!file_exists(HTMLPURIFIER_PREFIX . '/' . $file)) return false;
+ return $file;
+ }
+
+ /**
+ * "Pre-registers" our autoloader on the SPL stack.
+ */
+ public static function registerAutoload() {
+ $autoload = array('HTMLPurifier_Bootstrap', 'autoload');
+ if ( ($funcs = spl_autoload_functions()) === false ) {
+ spl_autoload_register($autoload);
+ } elseif (function_exists('spl_autoload_unregister')) {
+ $compat = version_compare(PHP_VERSION, '5.1.2', '<=') &&
+ version_compare(PHP_VERSION, '5.1.0', '>=');
+ foreach ($funcs as $func) {
+ if (is_array($func)) {
+ // :TRICKY: There are some compatibility issues and some
+ // places where we need to error out
+ $reflector = new ReflectionMethod($func[0], $func[1]);
+ if (!$reflector->isStatic()) {
+ throw new Exception('
+ HTML Purifier autoloader registrar is not compatible
+ with non-static object methods due to PHP Bug #44144;
+ Please do not use HTMLPurifier.autoload.php (or any
+ file that includes this file); instead, place the code:
+ spl_autoload_register(array(\'HTMLPurifier_Bootstrap\', \'autoload\'))
+ after your own autoloaders.
+ ');
+ }
+ // Suprisingly, spl_autoload_register supports the
+ // Class::staticMethod callback format, although call_user_func doesn't
+ if ($compat) $func = implode('::', $func);
+ }
+ spl_autoload_unregister($func);
+ }
+ spl_autoload_register($autoload);
+ foreach ($funcs as $func) spl_autoload_register($func);
+ }
+ }
+
+}
+
+// vim: et sw=4 sts=4