mirror of
https://github.com/silverstripe/silverstripe-cms
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051143465e
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/cms/branches/2.4@103127 467b73ca-7a2a-4603-9d3b-597d59a354a9
139 lines
3.4 KiB
PHP
139 lines
3.4 KiB
PHP
<?php
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/**
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* @package cms
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* @subpackage publishers
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*/
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abstract class StaticPublisher extends DataObjectDecorator {
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/**
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* Defines whether to output information about publishing or not. By
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* default, this is off, and should be turned on when you want debugging
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* (for example, in a cron task)
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*/
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static $echo_progress = false;
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/**
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* Realtime static publishing... the second a page
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* is saved, it is written to the cache
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*/
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static $disable_realtime = false;
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abstract function publishPages($pages);
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abstract function unpublishPages($pages);
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static function echo_progress() {
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return (boolean)self::$echo_progress;
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}
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/**
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* Either turns on (boolean true) or off (boolean false) the progress indicators.
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* @see StaticPublisher::$echo_progress
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*/
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static function set_echo_progress($progress) {
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self::$echo_progress = (boolean)$progress;
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}
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/**
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* Called after a page is published.
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*/
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function onAfterPublish($original) {
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$this->republish($original);
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}
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/**
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* Called after link assets have been renamed, and the live site has been updated, without
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* an actual publish event.
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*
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* Only called if the published content exists and has been modified.
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*/
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function onRenameLinkedAsset($original) {
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$this->republish($original);
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}
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function republish($original) {
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if (self::$disable_realtime) return;
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$urls = array();
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if($this->owner->hasMethod('pagesAffectedByChanges')) {
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$urls = $this->owner->pagesAffectedByChanges($original);
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} else {
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$pages = Versioned::get_by_stage('SiteTree', 'Live', '', '', '', 10);
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if($pages) {
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foreach($pages as $page) {
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$urls[] = $page->AbsoluteLink();
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}
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}
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}
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foreach($urls as $i => $url) {
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if(!is_string($url)) {
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user_error("Bad URL: " . var_export($url, true), E_USER_WARNING);
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continue;
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}
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if(substr($url,-1) == '/') $url = substr($url,0,-1);
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$urls[$i] = $url;
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}
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$urls = array_unique($urls);
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$this->publishPages($urls);
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}
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/**
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* On after unpublish, get changes and hook into underlying
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* functionality
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*/
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function onAfterUnpublish($page) {
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if (self::$disable_realtime) return;
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// Get the affected URLs
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if($this->owner->hasMethod('pagesAffectedByUnpublishing')) {
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$urls = $this->owner->pagesAffectedByUnpublishing();
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$urls = array_unique($urls);
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} else {
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$urls = array($this->owner->AbsoluteLink());
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}
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$legalPages = singleton('Page')->allPagesToCache();
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$urlsToRepublish = array_intersect($urls, $legalPages);
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$urlsToUnpublish = array_diff($urls, $legalPages);
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$this->unpublishPages($urlsToUnpublish);
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$this->publishPages($urlsToRepublish);
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}
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/**
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* Get all external references to CSS, JS,
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*/
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function externalReferencesFor($content) {
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$CLI_content = escapeshellarg($content);
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$tidy = `echo $CLI_content | tidy -numeric -asxhtml`;
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$tidy = preg_replace('/xmlns="[^"]+"/','', $tidy);
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$xContent = new SimpleXMLElement($tidy);
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//Debug::message($xContent->asXML());
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$xlinks = array(
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"//link[@rel='stylesheet']/@href" => false,
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"//script/@src" => false,
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"//img/@src" => false,
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"//a/@href" => true,
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);
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$urls = array();
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foreach($xlinks as $xlink => $assetsOnly) {
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$matches = $xContent->xpath($xlink);
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if($matches) foreach($matches as $item) {
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$url = $item . '';
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if($assetsOnly && substr($url,0,7) != 'assets/') continue;
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$urls[] = $url;
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}
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}
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return $urls;
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}
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}
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?>
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