mirror of
https://github.com/silverstripe/silverstripe-cms
synced 2024-10-22 08:05:56 +02:00
fa4415459a
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/cms/trunk@112176 467b73ca-7a2a-4603-9d3b-597d59a354a9
322 lines
11 KiB
PHP
322 lines
11 KiB
PHP
<?php
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/**
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* Usage: Object::add_extension("SiteTree", "FilesystemPublisher('static-folder', 'html')");
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*
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* Usage: To work with Subsite module you need to:
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* - Add FilesystemPublisher::$domain_based_caching = true; in mysite/_config.php
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* - Added main site host mapping in subsites/host-map.php after everytime a new subsite is created or modified
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*
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* You may also have a method $page->pagesAffectedByUnpublishing() to return other URLS
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* that should be de-cached if $page is unpublished.
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*
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* @see http://doc.silverstripe.com/doku.php?id=staticpublisher
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*
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* @package cms
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* @subpackage publishers
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*/
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class FilesystemPublisher extends StaticPublisher {
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/**
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* @var String
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*/
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protected $destFolder = 'cache';
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/**
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* @var String
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*/
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protected $fileExtension = 'html';
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/**
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* @var String
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*/
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protected static $static_base_url = null;
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/**
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* @var Boolean Use domain based cacheing (put cache files into a domain subfolder)
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* This must be true if you are using this with the "subsites" module.
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* Please note that this form of caching requires all URLs to be provided absolute
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* (not relative to the webroot) via {@link SiteTree->AbsoluteLink()}.
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*/
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public static $domain_based_caching = false;
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/**
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* Set a different base URL for the static copy of the site.
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* This can be useful if you are running the CMS on a different domain from the website.
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*/
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static function set_static_base_url($url) {
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self::$static_base_url = $url;
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}
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/**
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* @param $destFolder The folder to save the cached site into.
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* This needs to be set in sapphire/static-main.php as well through the {@link $cacheBaseDir} variable.
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* @param $fileExtension The file extension to use, e.g 'html'.
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* If omitted, then each page will be placed in its own directory,
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* with the filename 'index.html'. If you set the extension to PHP, then a simple PHP script will
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* be generated that can do appropriate cache & redirect header negotation.
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*/
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function __construct($destFolder, $fileExtension = null) {
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// Remove trailing slash from folder
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if(substr($destFolder, -1) == '/') $destFolder = substr($destFolder, 0, -1);
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$this->destFolder = $destFolder;
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$this->fileExtension = $fileExtension;
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parent::__construct();
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}
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/**
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* Transforms relative or absolute URLs to their static path equivalent.
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* This needs to be the same logic that's used to look up these paths through
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* sapphire/static-main.php. Does not include the {@link $destFolder} prefix.
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* Replaces various special characters in the resulting filename similar to {@link SiteTree::generateURLSegment()}.
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*
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* Examples (without $domain_based_caching):
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* - http://mysite.com/mywebroot/ => /index.html (assuming your webroot is in a subfolder)
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* - http://mysite.com/about-us => /about-us.html
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* - http://mysite.com/parent/child => /parent/child.html
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*
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* Examples (with $domain_based_caching):
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* - http://mysite.com/mywebroot/ => /mysite.com/index.html (assuming your webroot is in a subfolder)
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* - http://mysite.com/about-us => /mysite.com/about-us.html
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* - http://myothersite.com/about-us => /myothersite.com/about-us.html
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* - http://subdomain.mysite.com/parent/child => /subdomain.mysite.com/parent/child.html
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*
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* @param Array $urls Absolute or relative URLs
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* @return Array Map of original URLs to filesystem paths (relative to {@link $destFolder}).
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*/
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function urlsToPaths($urls) {
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$mappedUrls = array();
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foreach($urls as $url) {
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$urlParts = @parse_url($url);
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// Remove base folders from the URL if webroot is hosted in a subfolder (same as static-main.php)
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$path = isset($urlParts['path']) ? $urlParts['path'] : '';
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if(substr(strtolower($path), 0, strlen(BASE_URL)) == strtolower(BASE_URL)) {
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$urlSegment = substr($path, strlen(BASE_URL));
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} else {
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$urlSegment = $path;
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}
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// perform similar transformations to SiteTree::generateURLSegment()
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$urlSegment = str_replace('&','-and-',$urlSegment);
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$urlSegment = str_replace('&','-and-',$urlSegment);
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$urlSegment = ereg_replace('[^A-Za-z0-9\/-]+','-',$urlSegment);
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$urlSegment = ereg_replace('-+','-',$urlSegment);
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$urlSegment = trim($urlSegment, '/');
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$filename = $urlSegment ? "$urlSegment.$this->fileExtension" : "index.$this->fileExtension";
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if (self::$domain_based_caching) {
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if (!$urlParts) continue; // seriously malformed url here...
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$filename = $urlParts['host'] . '/' . $filename;
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}
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$mappedUrls[$url] = ((dirname($filename) == '/') ? '' : (dirname($filename).'/')).basename($filename);
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}
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return $mappedUrls;
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}
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function unpublishPages($urls) {
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// Do we need to map these?
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// Detect a numerically indexed arrays
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if (is_numeric(join('', array_keys($urls)))) $urls = $this->urlsToPaths($urls);
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// This can be quite memory hungry and time-consuming
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// @todo - Make a more memory efficient publisher
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increase_time_limit_to();
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increase_memory_limit_to();
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$cacheBaseDir = $this->getDestDir();
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foreach($urls as $url => $path) {
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if (file_exists($cacheBaseDir.'/'.$path)) {
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@unlink($cacheBaseDir.'/'.$path);
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}
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}
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}
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function publishPages($urls) {
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// Do we need to map these?
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// Detect a numerically indexed arrays
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if (is_numeric(join('', array_keys($urls)))) $urls = $this->urlsToPaths($urls);
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// This can be quite memory hungry and time-consuming
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// @todo - Make a more memory efficient publisher
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increase_time_limit_to();
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increase_memory_limit_to();
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// Set the appropriate theme for this publication batch.
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// This may have been set explicitly via StaticPublisher::static_publisher_theme,
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// or we can use the last non-null theme.
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if(!StaticPublisher::static_publisher_theme())
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SSViewer::set_theme(SSViewer::current_custom_theme());
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else
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SSViewer::set_theme(StaticPublisher::static_publisher_theme());
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$currentBaseURL = Director::baseURL();
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if(self::$static_base_url) Director::setBaseURL(self::$static_base_url);
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if($this->fileExtension == 'php') SSViewer::setOption('rewriteHashlinks', 'php');
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if(StaticPublisher::echo_progress()) echo $this->class.": Publishing to " . self::$static_base_url . "\n";
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$files = array();
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$i = 0;
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$totalURLs = sizeof($urls);
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foreach($urls as $url => $path) {
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if(self::$static_base_url) Director::setBaseURL(self::$static_base_url);
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$i++;
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if($url && !is_string($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(StaticPublisher::echo_progress()) {
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echo " * Publishing page $i/$totalURLs: $url\n";
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flush();
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}
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Requirements::clear();
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if(Director::is_relative_url($url)) $url = Director::absoluteURL($url);
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$response = Director::test(str_replace('+', ' ', $url));
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Requirements::clear();
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singleton('DataObject')->flushCache();
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// Generate file content
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// PHP file caching will generate a simple script from a template
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if($this->fileExtension == 'php') {
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if(is_object($response)) {
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if($response->getStatusCode() == '301' || $response->getStatusCode() == '302') {
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$content = $this->generatePHPCacheRedirection($response->getHeader('Location'));
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} else {
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$content = $this->generatePHPCacheFile($response->getBody(), HTTP::get_cache_age(), date('Y-m-d H:i:s'));
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}
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} else {
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$content = $this->generatePHPCacheFile($response . '', HTTP::get_cache_age(), date('Y-m-d H:i:s'));
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}
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// HTML file caching generally just creates a simple file
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} else {
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if(is_object($response)) {
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if($response->getStatusCode() == '301' || $response->getStatusCode() == '302') {
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$absoluteURL = Director::absoluteURL($response->getHeader('Location'));
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$content = "<meta http-equiv=\"refresh\" content=\"2; URL=$absoluteURL\">";
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} else {
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$content = $response->getBody();
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}
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} else {
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$content = $response . '';
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}
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}
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$files[] = array(
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'Content' => $content,
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'Folder' => dirname($path).'/',
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'Filename' => basename($path),
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);
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// Add externals
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/*
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$externals = $this->externalReferencesFor($content);
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if($externals) foreach($externals as $external) {
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// Skip absolute URLs
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if(preg_match('/^[a-zA-Z]+:\/\//', $external)) continue;
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// Drop querystring parameters
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$external = strtok($external, '?');
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if(file_exists("../" . $external)) {
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// Break into folder and filename
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if(preg_match('/^(.*\/)([^\/]+)$/', $external, $matches)) {
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$files[$external] = array(
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"Copy" => "../$external",
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"Folder" => $matches[1],
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"Filename" => $matches[2],
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);
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} else {
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user_error("Can't parse external: $external", E_USER_WARNING);
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}
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} else {
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$missingFiles[$external] = true;
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}
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}*/
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}
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if(self::$static_base_url) Director::setBaseURL($currentBaseURL);
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if($this->fileExtension == 'php') SSViewer::setOption('rewriteHashlinks', true);
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$base = BASE_PATH . "/$this->destFolder";
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foreach($files as $file) {
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Filesystem::makeFolder("$base/$file[Folder]");
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if(isset($file['Content'])) {
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$fh = fopen("$base/$file[Folder]$file[Filename]", "w");
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fwrite($fh, $file['Content']);
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fclose($fh);
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} else if(isset($file['Copy'])) {
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copy($file['Copy'], "$base/$file[Folder]$file[Filename]");
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}
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}
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}
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/**
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* Generate the templated content for a PHP script that can serve up the given piece of content with the given age and expiry
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*/
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protected function generatePHPCacheFile($content, $age, $lastModified) {
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$template = file_get_contents(BASE_PATH . '/cms/code/staticpublisher/CachedPHPPage.tmpl');
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return str_replace(
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array('**MAX_AGE**', '**LAST_MODIFIED**', '**CONTENT**'),
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array((int)$age, $lastModified, $content),
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$template);
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}
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/**
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* Generate the templated content for a PHP script that can serve up a 301 redirect to the given destionation
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*/
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protected function generatePHPCacheRedirection($destination) {
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$template = file_get_contents(BASE_PATH . '/cms/code/staticpublisher/CachedPHPRedirection.tmpl');
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return str_replace(
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array('**DESTINATION**'),
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array($destination),
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$template);
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}
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public function getDestDir() {
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return BASE_PATH . '/' . $this->destFolder;
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}
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/**
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* Return an array of all the existing static cache files, as a map of URL => file.
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* Only returns cache files that will actually map to a URL, based on urlsToPaths.
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*/
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public function getExistingStaticCacheFiles() {
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$cacheDir = BASE_PATH . '/' . $this->destFolder;
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$urlMapper = array_flip($this->urlsToPaths($this->owner->allPagesToCache()));
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$output = array();
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// Glob each dir, then glob each one of those
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foreach(glob("$cacheDir/*", GLOB_ONLYDIR) as $cacheDir) {
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foreach(glob($cacheDir.'/*') as $cacheFile) {
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$mapKey = str_replace(BASE_PATH . "/cache/","",$cacheFile);
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if(isset($urlMapper[$mapKey])) {
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$url = $urlMapper[$mapKey];
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$output[$url] = $cacheFile;
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}
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}
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}
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return $output;
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}
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}
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?>
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