85 lines
3.3 KiB
PHP
85 lines
3.3 KiB
PHP
<?php
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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namespace CloudObjects\SDK\Helpers;
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use Exception;
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use CloudObjects\SDK\NodeReader, CloudObjects\SDK\ObjectRetriever;
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/**
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* The SDKLoader helper allows developers to quickly load common PHP SDKs
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* from API providers and apply configuration stored in CloudObjects.
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*/
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class SDKLoader {
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private $objectRetriever;
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private $reader;
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private $classes = [];
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/**
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* @param ObjectRetriever $objectRetriever An initialized and authenticated object retriever.
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*/
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public function __construct(ObjectRetriever $objectRetriever) {
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$this->objectRetriever = $objectRetriever;
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$this->reader = new NodeReader;
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}
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/**
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* Initialize and return the SDK with the given classname.
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* Throws Exception if the SDK is not supported.
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*
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* @param $classname Classname for the SDK's main class
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* @param array $options Additional options for the SDK (if necessary)
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*/
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public function get($classname, array $options) {
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if (!class_exists($classname))
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throw new Exception("<".$classname."> is not a valid classname.");
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$hashkey = md5($classname.serialize($options));
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if (!isset($this->classes[$hashkey])) {
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$nsNode = $this->objectRetriever->getAuthenticatingNamespaceObject();
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// --- Amazon Web Services (https://aws.amazon.com/) ---
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// has multiple classnames, so check for common superclass
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if (is_a($classname, 'Aws\AwsClient', true)) {
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$class = new $classname(array_merge($options, [
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'credentials' => [
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'key' => $this->reader->getFirstValueString($nsNode, 'coid://aws.3rd-party.co/accessKeyId'),
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'secret' => $this->reader->getFirstValueString($nsNode, 'coid://aws.3rd-party.co/secretAccessKey')
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]
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]));
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} else {
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switch ($classname) {
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// --- stream (https://getstream.io/) ---
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case "GetStream\Stream\Client":
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$class = new $classname(
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$this->reader->getFirstValueString($nsNode, 'coid://getstreamio.3rd-party.co/key'),
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$this->reader->getFirstValueString($nsNode, 'coid://getstreamio.3rd-party.co/secret')
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);
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break;
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// --- Pusher (https://pusher.com/) ---
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case "Pusher":
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$class = new $classname(
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$this->reader->getFirstValueString($nsNode, 'coid://pusher.3rd-party.co/key'),
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$this->reader->getFirstValueString($nsNode, 'coid://pusher.3rd-party.co/secret'),
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$this->reader->getFirstValueString($nsNode, 'coid://pusher.3rd-party.co/appId'),
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$options
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);
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break;
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}
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}
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}
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if (!isset($class))
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throw new Exception("No rules defined to initialize <".$classname.">.");
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$this->classes[$hashkey] = $class;
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return $this->classes[$hashkey];
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}
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} |