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@@ -0,0 +1,330 @@
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+<?php
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+class GraphicsContext {
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+ protected $palette = array();
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+}
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+
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+/**
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+ * A wrapper for XML elements.
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+ */
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+class Element {
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+ public $name = NULL;
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+ public $attributes = array();
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+ public $value = NULL;
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+ public $new_line; // Add a new line after element
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+
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+ public function __construct($name, $attr = NULL, $value = NULL) {
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+ $this->name = $name;
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+ $this->attributes = $attr;
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+ $this->value = $value;
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+ }
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+
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+ public function __toString() {
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+ $ret = '<'. $this->name;
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+ if (!empty($this->attributes)) {
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+ $ret .= ' ' . implode(' ', $this->attributes);
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+ }
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+ if (empty($this->value)) {
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+ $ret .= ' />';
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+ }
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+ else {
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+ $ret .= '>';
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+ if ($this->value instanceof Element) {
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+ $ret .= (string) $this->value; // force __toString()
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+ }
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+ elseif (is_array($this->value)) {
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+ $ret .= implode('', $this->value);
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+ }
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+ else {
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+ $ret .= $this->value;
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+ }
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+ $ret .= "</$this->name>";
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+ }
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+ return $ret;
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+ }
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+}
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+
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+class Context {
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+ /**
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+ * Directory in which the current script is located.
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+ *
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+ * Follow symlinks if applicable, to obtain the actual implementation
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+ * directory, instead of just the main file symlink, in order to find the
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+ * other files.
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+ *
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+ * @var string
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+ */
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+ protected $dirname;
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+
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+ /**
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+ * Requested path: <$PHP_SELF>?q=a/b/c
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+ *
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+ * @var string
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+ */
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+ protected $path = NULL;
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+
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+ /**
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+ * Graphics context
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+ *
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+ * @var GraphicsContext
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+ */
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+ protected $gc = NULL;
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+
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+ public function getDirname() {
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+ if (!isset($this->dirname)) {
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+ $this->dirname = dirname(__FILE__);
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+ }
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+
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+ return $this->dirname;
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+ }
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+
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+ /**
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+ * Return the requested path.
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+ *
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+ * @param string $path
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+ */
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+ public function getPath() {
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+ if (!isset($this->path)) {
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+ $this->path = empty($_GET['q']) ? '' : $_GET['q'];
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+ }
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+
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+ return $this->path;
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+ }
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+
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+ /**
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+ * User information: logged or not ?
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+ *
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+ * @var boolean
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+ */
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+ protected $user = FALSE;
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+
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+
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+ function __construct() {
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+ $this->getPath();
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+ }
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+
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+ function __toString() {
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+ $ret = '<pre>' . print_r($this, TRUE) . '</pre>';
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+ return $ret;
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+ }
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+}
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+
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+class Page extends Element {
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+ /**
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+ * @var Context
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+ */
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+ protected $context;
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+
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+ /**
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+ * @var array
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+ */
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+ protected $styles;
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+
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+ /**
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+ * @var array
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+ */
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+ protected $finalized = array();
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+
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+ public function getHeader($name) {
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+ }
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+
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+ public function setHeader($name, $value) {
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+
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+ }
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+
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+ public function getHead() {
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+ $this->finalizeHead();
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+ $head = new Element('head', NULL, $this->head);
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+ $ret = (string) $head;
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+ return $ret;
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+ }
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+
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+ public function setHead($item) {
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+
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+ }
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+
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+ public function getBody() {
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+ $this->finalizeBody();
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+ $body = new Element('body', NULL, $this->body);
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+ $ret = (string) $body;
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+ return $ret;
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+ }
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+
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+ public function setBody($fragment) {
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+ $this->body[] = $fragment;
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+ }
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+
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+ public function finalizeHead() {
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+ if (isset($this->finalized['head'])) {
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+ throw new Exception('Attempt to finalize already finalized head');
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+ }
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+ $cssLink = new Element('link', array(
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+ 'rel' => 'stylesheet',
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+ 'type' => 'text/css',
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+ 'href' => $this->context->getPath() .'/memcache_ui.css',
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+ ));
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+ $this->setHead($cssLink);
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+
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+ $this->finalized['head'] = TRUE;
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+ }
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+
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+ public function finalizeBody() {
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+ if (isset($this->finalized['body'])) {
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+ throw new Exception('Attempt to finalize already finalized body');
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+ }
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+ $this->finalized['body'] = TRUE;
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+ }
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+
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+ public function render() {
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+ $html = new Element('html', NULL, $this->getHead() . $this->getBody());
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+ return (string) $html;
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+ }
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+
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+ /**
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+ * Page constructor.
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+ *
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+ * @param Context $context
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+ * @param array $item
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+ * A router info array.
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+ *
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+ * @see Router::getInfo()
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+ */
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+ public function __construct(Context $context, array $item) {
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+ parent::__construct('html');
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+ $this->context = $context;
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+ }
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+}
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+
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+class Router {
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+ function getInfo() {
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+ $ret = array(
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+ '^server/(\w+)/flush/(\w+)$' => array(
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+ 'page class' => 'page_server_flush',
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+ 'page arguments' => array('$1', '$2'),
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+ 'title callback' => 'title_server',
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+ 'title arguments' => 'page arguments',
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+ ),
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+ '^server/(\w+)/flush$' => array(
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+ 'page class' => 'page_server_flush',
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+ 'page arguments' => array('$1'),
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+ 'title callback' => 'title_server',
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+ 'title arguments' => 'page arguments',
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+ ),
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+
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+ '^server/(\w+)/slab/(\d+)$' => array(
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+ 'page class' => 'page_slab_view',
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+ 'page arguments' => array('$1', '$2'),
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+ 'title callback' => 'title_slab',
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+ 'title arguments' => 'page arguments',
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+ ),
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+
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+ '^server/(\w+)/key/(.+)/delete/(\w+)$' => array(
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+ 'page class' => 'page_variable_delete_confirm',
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+ 'page arguments' => array('$1', '$2', '$3'),
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+ 'title callback' => 'title_variable',
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+ 'title arguments' => 'page arguments',
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+ ),
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+ '^server/(\w+)/key/(.+)/delete$' => array(
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+ 'page class' => 'page_variable_delete_form',
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+ 'page arguments' => array('$1', '$2'),
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+ 'title callback' => 'title_variable',
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+ 'title arguments' => 'page arguments',
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+ ),
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+
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+ '^server/(\w+)/key/(.+)/dump$' => array(
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+ 'page class' => 'page_variable_view_php',
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+ 'page arguments' => array('$1', '$2'),
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+ 'title callback' => 'title_variable',
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+ 'title arguments' => 'page arguments',
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+ ),
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+ '^server/(\w+)/key/(.+)/php$' => array(
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+ 'page class' => 'page_variable_view_php',
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+ 'page arguments' => array('$1', '$2'),
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+ 'title callback' => 'title_variable',
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+ 'title arguments' => 'page arguments',
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+ ),
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+ '^server/(\w+)/key/(.+)$' => array(
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+ 'page class' => 'page_variable_view_text',
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+ 'page arguments' => array('$1', '$2'),
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+ 'title callback' => 'title_variable',
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+ 'title arguments' => 'page arguments',
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+ ),
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+
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+ '^slabs$' => array(
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+ 'page class' => 'page_slab_overview',
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+ 'title' => 'Slabs per server',
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+ ),
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+
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+ '^$' => array(
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+ 'page class' => 'Page_Main',
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+ 'title' => 'Overview',
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+ ),
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+ );
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+
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+ return $ret;
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+ }
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+
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+ function getRoute() {
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+ $found = FALSE;
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+ $path = $this->context->getPath();
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+ // echo "<pre>Path: [". $path . "]</p>";
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+ $matches = array();
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+ foreach ($this->getInfo() as $regex => $info) {
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+ $regex = "@$regex@";
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+ $count = preg_match($regex, $path, $matches);
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+ // echo "<pre>$regex: $count";
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+ // if ($count) print_r($matches);
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+ // echo "</pre>";
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+ if ($count) {
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+ $found = TRUE;
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+ break;
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+ }
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+ }
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+ if ($found) {
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+ // echo "Found at $regex<pre>";
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+ // print_r($info);
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+ $regexes = array_fill(0, count($info['page arguments']), $regex);
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+ $paths = array_fill(0, count($info['page arguments']), $path);
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+ $info['page arguments'] = preg_replace($regexes, $info['page arguments'], $paths);
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+ }
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+ else {
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+ $info = NULL;
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+ }
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+
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+ return $info;
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+ }
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+
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+ function __construct(Context $context) {
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+ $this->context = $context;
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+ }
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+}
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+
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+class Page_Main extends Page {
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+ function finalizeBody() {
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+ $hello = new Element('p', NULL, 'Hello world');
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+ $this->setBody($hello);
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+ parent::finalizeBody();
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+ }
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+
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+}
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+
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+function main() {
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+ $context = new Context();
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+ // echo "<p>Dirname: [". $context->getDirname() . "]</p>";
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+ // echo "<p>Path: [". $context->getPath() . "]</p><pre>";
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+
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+ $router = new Router($context);
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+ $item = $router->getRoute();
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+ $page = new $item['page class']($context, $item);
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+ // echo '<pre>'; var_dump($page);
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+ echo $page->render();
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+}
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+
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+try {
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+ main();
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+}
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+catch (Exception $e) {
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+ echo '<pre>';
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+ echo $e->getMessage() . PHP_EOL;
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+ echo $e->getTraceAsString();
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+ echo "</pre>";
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+}
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