105 lines
3.1 KiB
PHP
105 lines
3.1 KiB
PHP
<?php
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namespace SilverStripe\Control;
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use InvalidArgumentException;
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use SilverStripe\Core\Config\Config;
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use SilverStripe\Core\Manifest\ModuleResource;
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use SilverStripe\Core\Manifest\ResourceURLGenerator;
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/**
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* Generate URLs assuming that BASE_PATH is also the webroot
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* Standard SilverStripe 3 operation
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*/
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class SimpleResourceURLGenerator implements ResourceURLGenerator
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{
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/**
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* Rewrites applied after generating url.
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* Note: requires either silverstripe/vendor-plugin-helper or silverstripe/vendor-plugin
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* to ensure the file is available.
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*
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* @config
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* @var array
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*/
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private static $url_rewrites = [
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'#^vendor/#i' => 'resources/',
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];
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/*
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* @var string
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*/
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private $nonceStyle;
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/*
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* Get the style of nonce-suffixes to use, or null if disabled
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*
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* @return string|null
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*/
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public function getNonceStyle()
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{
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return $this->nonceStyle;
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}
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/*
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* Set the style of nonce-suffixes to use, or null to disable
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* Currently only "mtime" is allowed
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*
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* @param string|null $nonceStyle The style of nonces to apply, or null to disable
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* @return $this
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*/
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public function setNonceStyle($nonceStyle)
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{
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if ($nonceStyle && $nonceStyle !== 'mtime') {
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throw new InvalidArgumentException('The only allowed NonceStyle is mtime');
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}
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$this->nonceStyle = $nonceStyle;
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return $this;
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}
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/**
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* Return the URL for a resource, prefixing with Director::baseURL() and suffixing with a nonce
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*
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* @param string|ModuleResource $relativePath File or directory path relative to BASE_PATH
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* @return string Doman-relative URL
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* @throws InvalidArgumentException If the resource doesn't exist
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*/
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public function urlForResource($relativePath)
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{
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if ($relativePath instanceof ModuleResource) {
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// Load from module resource
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$resource = $relativePath;
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$relativePath = $resource->getRelativePath();
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$exists = $resource->exists();
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$absolutePath = $resource->getPath();
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} else {
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// Use normal string
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$absolutePath = preg_replace('/\?.*/', '', Director::baseFolder() . '/' . $relativePath);
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$exists = file_exists($absolutePath);
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}
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if (!$exists) {
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throw new InvalidArgumentException("File {$relativePath} does not exist");
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}
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// Apply url rewrites
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$rules = Config::inst()->get(static::class, 'url_rewrites') ?: [];
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foreach ($rules as $from => $to) {
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$relativePath = preg_replace($from, $to, $relativePath);
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}
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// Apply nonce
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$nonce = '';
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// Don't add nonce to directories
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if ($this->nonceStyle && is_file($absolutePath)) {
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$nonce = (strpos($relativePath, '?') === false) ? '?' : '&';
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switch ($this->nonceStyle) {
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case 'mtime':
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$nonce .= "m=" . filemtime($absolutePath);
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break;
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}
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}
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return Director::baseURL() . $relativePath . $nonce;
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}
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}
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