Pico/plugins/00-PicoDeprecated.php
Daniel Rudolf 2e15e112f7 Define deprecated constants before evaluating the config.php in Picos root dir
This prevents E_NOTICEs when using e.g. ROOT_DIR in a old config.php, so upgrading users are usually not bothered with this BC break
2015-10-04 18:50:16 +02:00

356 lines
12 KiB
PHP

<?php
/**
* Serve features of Pico deprecated since v1.0
*
* This plugin exists for backward compatibility and is disabled by default.
* It gets automatically enabled when a plugin which doesn't implement
* {@link PicoPluginInterface} is loaded. This plugin triggers deprecated
* events and automatically enables {@link PicoParsePagesContent} and
* {@link PicoExcerpt}. These plugins heavily impact Picos performance! You
* can disable this plugin by calling {@link PicoDeprecated::setEnabled()}.
*
* The following deprecated events are triggered by this plugin:
* +---------------------+-----------------------------------------------------------+
* | Event | ... triggers the deprecated event |
* +---------------------+-----------------------------------------------------------+
* | onPluginsLoaded | plugins_loaded() |
* | onConfigLoaded | config_loaded($config) |
* | onRequestUrl | request_url($url) |
* | onContentLoading | before_load_content($file) |
* | onContentLoaded | after_load_content($file, $rawContent) |
* | on404ContentLoading | before_404_load_content($file) |
* | on404ContentLoaded | after_404_load_content($file, $rawContent) |
* | onMetaHeaders | before_read_file_meta($headers) |
* | onMetaParsed | file_meta($meta) |
* | onContentParsing | before_parse_content($rawContent) |
* | onContentParsed | after_parse_content($content) |
* | onContentParsed | content_parsed($content) |
* | onSinglePageLoaded | get_page_data($pages, $meta) |
* | onPagesLoaded | get_pages($pages, $currentPage, $previousPage, $nextPage) |
* | onTwigRegistration | before_twig_register() |
* | onPageRendering | before_render($twigVariables, $twig, $templateName) |
* | onPageRendered | after_render($output) |
* +---------------------+-----------------------------------------------------------+
*
* Since Pico 1.0 the config is stored in {@path "config/config.php"}. This
* plugin tries to read {@path "config.php"} in Picos root dir and overwrites
* all settings previously specified in {@path "config/config.php"}.
*
* @author Daniel Rudolf
* @link http://picocms.org
* @license http://opensource.org/licenses/MIT
* @version 1.0
*/
class PicoDeprecated extends AbstractPicoPlugin
{
/**
* This plugin is disabled by default
*
* @see AbstractPicoPlugin::$enabled
*/
protected $enabled = false;
/**
* The requested file
*
* @var string
* @see PicoDeprecated::onRequestFile()
*/
protected $requestFile;
/**
* Enables this plugin on demand and triggers the deprecated event
* plugins_loaded()
*
* @see DummyPlugin::onPluginsLoaded()
*/
public function onPluginsLoaded(&$plugins)
{
foreach ($plugins as $plugin) {
if (!is_a($plugin, 'PicoPluginInterface')) {
// the plugin doesn't implement PicoPluginInterface; it uses deprecated events
// enable PicoDeprecated if it hasn't be explicitly enabled/disabled yet
if (!$this->isStatusChanged()) {
$this->setEnabled(true, true, true);
}
break;
}
}
if ($this->isEnabled()) {
$this->triggerEvent('plugins_loaded');
}
}
/**
* Triggers the deprecated event config_loaded($config), tries to read
* {@path "config.php"} in Picos root dir, enables the plugins
* {@link PicoParsePagesContent} and {@link PicoExcerpt} and defines some
* deprecated constants (ROOT_DIR, CONTENT_DIR etc.)
*
* @see DummyPlugin::onConfigLoaded()
*/
public function onConfigLoaded(&$config)
{
// CONTENT_DIR constant is deprecated since v0.9,
// ROOT_DIR, LIB_DIR, PLUGINS_DIR, THEMES_DIR and CONTENT_EXT constants since v1.0,
// CONFIG_DIR constant existed just for a short time between v0.9 and v1.0,
// CACHE_DIR constant was dropped with v1.0 without a replacement
if (!defined('ROOT_DIR')) {
define('ROOT_DIR', $this->getRootDir());
}
if (!defined('CONFIG_DIR')) {
define('CONFIG_DIR', $this->getConfigDir());
}
if (!defined('LIB_DIR')) {
$picoReflector = new ReflectionClass('Pico');
define('LIB_DIR', dirname($picoReflector->getFileName() . '/'));
}
if (!defined('PLUGINS_DIR')) {
define('PLUGINS_DIR', $this->getPluginsDir());
}
if (!defined('THEMES_DIR')) {
define('THEMES_DIR', $this->getThemesDir());
}
if (!defined('CONTENT_DIR')) {
define('CONTENT_DIR', $config['content_dir']);
}
if (!defined('CONTENT_EXT')) {
define('CONTENT_EXT', $config['content_ext']);
}
if (file_exists($this->getRootDir() . 'config.php')) {
// config.php in Pico::$rootDir is deprecated; use Pico::$configDir instead
$newConfig = require($this->getRootDir() . 'config.php');
if (is_array($newConfig)) {
$config = $newConfig + $config;
}
}
// enable PicoParsePagesContent and PicoExcerpt
// we can't enable them during onPluginsLoaded because we can't know
// if the user disabled us (PicoDeprecated) manually in the config
$plugins = $this->getPlugins();
if (isset($plugins['PicoParsePagesContent'])) {
// parse all pages content if this plugin hasn't
// be explicitly enabled/disabled yet
if (!$plugins['PicoParsePagesContent']->isStatusChanged()) {
$plugins['PicoParsePagesContent']->setEnabled(true, true, true);
}
}
if (isset($plugins['PicoExcerpt'])) {
// enable excerpt plugin if it hasn't be explicitly enabled/disabled yet
if (!$plugins['PicoExcerpt']->isStatusChanged()) {
$plugins['PicoExcerpt']->setEnabled(true, true, true);
}
}
$this->triggerEvent('config_loaded', array(&$config));
}
/**
* Triggers the deprecated event request_url($url)
*
* @see DummyPlugin::onRequestUrl()
*/
public function onRequestUrl(&$url)
{
$this->triggerEvent('request_url', array(&$url));
}
/**
* Sets {@link PicoDeprecated::$requestFile} to trigger the deprecated
* events after_load_content() and after_404_load_content()
*
* @see DummyPlugin::onRequestFile()
*/
public function onRequestFile(&$file)
{
$this->requestFile = &$file;
}
/**
* Triggers the deprecated before_load_content($file)
*
* @see DummyPlugin::onContentLoading()
*/
public function onContentLoading(&$file)
{
$this->triggerEvent('before_load_content', array(&$file));
}
/**
* Triggers the deprecated event after_load_content($file, $rawContent)
*
* @see DummyPlugin::onContentLoaded()
*/
public function onContentLoaded(&$rawContent)
{
$this->triggerEvent('after_load_content', array(&$this->requestFile, &$rawContent));
}
/**
* Triggers the deprecated before_404_load_content($file)
*
* @see DummyPlugin::on404ContentLoading()
*/
public function on404ContentLoading(&$file)
{
$this->triggerEvent('before_404_load_content', array(&$file));
}
/**
* Triggers the deprecated event after_404_load_content($file, $rawContent)
*
* @see DummyPlugin::on404ContentLoaded()
*/
public function on404ContentLoaded(&$rawContent)
{
$this->triggerEvent('after_404_load_content', array(&$this->requestFile, &$rawContent));
}
/**
* Triggers the deprecated event before_read_file_meta($headers)
*
* @see DummyPlugin::onMetaHeaders()
*/
public function onMetaHeaders(&$headers)
{
$this->triggerEvent('before_read_file_meta', array(&$headers));
}
/**
* Triggers the deprecated event file_meta($meta)
*
* @see DummyPlugin::onMetaParsed()
*/
public function onMetaParsed(&$meta)
{
$this->triggerEvent('file_meta', array(&$meta));
}
/**
* Triggers the deprecated event before_parse_content($rawContent)
*
* @see DummyPlugin::onContentParsing()
*/
public function onContentParsing(&$rawContent)
{
$this->triggerEvent('before_parse_content', array(&$rawContent));
}
/**
* Triggers the deprecated events after_parse_content($content) and
* content_parsed($content)
*
* @see DummyPlugin::onContentParsed()
*/
public function onContentParsed(&$content)
{
$this->triggerEvent('after_parse_content', array(&$content));
// deprecated since v0.8
$this->triggerEvent('content_parsed', array(&$content));
}
/**
* Triggers the deprecated event get_page_data($pages, $meta)
*
* @see DummyPlugin::onSinglePageLoaded()
*/
public function onSinglePageLoaded(&$pageData)
{
$this->triggerEvent('get_page_data', array(&$pageData, $pageData['meta']));
}
/**
* Triggers the deprecated event get_pages($pages, $currentPage, $previousPage, $nextPage)
*
* @see DummyPlugin::onPagesLoaded()
*/
public function onPagesLoaded(&$pages, &$currentPage, &$previousPage, &$nextPage)
{
// remove keys of pages array
$plainPages = array();
foreach ($pages as &$pageData) {
$plainPages[] = &$pageData;
}
unset($pageData);
$this->triggerEvent('get_pages', array(&$plainPages, &$currentPage, &$previousPage, &$nextPage));
// re-index pages array
$pages = array();
foreach ($plainPages as &$pageData) {
if (!isset($pageData['id'])) {
$urlPrefixLength = strlen($this->getBaseUrl()) + intval(!$this->isUrlRewritingEnabled());
$pageData['id'] = substr($pageData['url'], $urlPrefixLength);
}
// prevent duplicates
$id = $pageData['id'];
for ($i = 1; isset($pages[$id]); $i++) {
$id = $pageData['id'] . '~dup' . $i;
}
$pages[$id] = &$pageData;
}
}
/**
* Triggers the deprecated event before_twig_register()
*
* @see DummyPlugin::onTwigRegistration()
*/
public function onTwigRegistration()
{
$this->triggerEvent('before_twig_register');
}
/**
* Triggers the deprecated event before_render($twigVariables, $twig, $templateName)
*
* @see DummyPlugin::onPageRendering()
*/
public function onPageRendering(&$twig, &$twigVariables, &$templateName)
{
// template name contains file extension since Pico 1.0
$fileExtension = '';
if (($fileExtensionPos = strrpos($templateName, '.')) !== false) {
$fileExtension = substr($templateName, $fileExtensionPos);
$templateName = substr($templateName, 0, $fileExtensionPos);
}
$this->triggerEvent('before_render', array(&$twigVariables, &$twig, &$templateName));
// add original file extension
$templateName = $templateName . $fileExtension;
}
/**
* Triggers the deprecated event after_render($output)
*
* @see DummyPlugin::onPageRendered()
*/
public function onPageRendered(&$output)
{
$this->triggerEvent('after_render', array(&$output));
}
/**
* Triggers a deprecated event on all plugins
*
* @param string $eventName event to trigger
* @param array $params parameters to pass
* @return void
*/
protected function triggerEvent($eventName, array $params = array())
{
foreach ($this->getPlugins() as $plugin) {
if (method_exists($plugin, $eventName)) {
call_user_func_array(array($plugin, $eventName), $params);
}
}
}
}