109 lines
2.3 KiB
PHP
109 lines
2.3 KiB
PHP
<?php
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/**
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* Copyright (c) 2014 Robin Appelman <icewind@owncloud.com>
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* This file is licensed under the Licensed under the MIT license:
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* http://opensource.org/licenses/MIT
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*/
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namespace Icewind\Streams;
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/**
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* A string-like object that automatically registers a stream wrapper when used and removes the stream wrapper when no longer used
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*
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* Can optionally pass context options to the stream wrapper
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*/
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class Path {
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/**
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* @var bool
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*/
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protected $registered = false;
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/**
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* @var string
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*/
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protected $protocol;
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/**
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* @var string
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*/
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protected $class;
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/**
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* @var array
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*/
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protected $contextOptions;
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/**
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* @param string $class
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* @param array $contextOptions
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*/
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public function __construct($class, $contextOptions = []) {
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$this->class = $class;
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$this->contextOptions = $contextOptions;
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}
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public function getProtocol() {
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if (!$this->protocol) {
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$this->protocol = 'auto' . uniqid();
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}
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return $this->protocol;
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}
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public function wrapPath($path) {
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return $this->getProtocol() . '://' . $path;
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}
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protected function register() {
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if (!$this->registered) {
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$this->appendDefaultContent($this->contextOptions);
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stream_wrapper_register($this->getProtocol(), $this->class);
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$this->registered = true;
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}
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}
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protected function unregister() {
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stream_wrapper_unregister($this->getProtocol());
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$this->unsetDefaultContent($this->getProtocol());
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$this->registered = false;
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}
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/**
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* Add values to the default stream context
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*
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* @param array $values
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*/
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protected function appendDefaultContent($values) {
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if (!is_array(current($values))) {
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$values = [$this->getProtocol() => $values];
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}
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$context = stream_context_get_default();
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$defaults = stream_context_get_options($context);
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foreach ($values as $key => $value) {
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$defaults[$key] = $value;
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}
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stream_context_set_default($defaults);
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}
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/**
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* Remove values from the default stream context
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*
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* @param string $key
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*/
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protected function unsetDefaultContent($key) {
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$context = stream_context_get_default();
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$defaults = stream_context_get_options($context);
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unset($defaults[$key]);
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stream_context_set_default($defaults);
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}
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public function __toString() {
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$this->register();
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return $this->protocol . '://';
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}
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public function __destruct() {
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$this->unregister();
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}
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}
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