gistfile1.aw

<?php

/**
 * 
 *
 * @author Jack Perry, Zach Thayer
 * @version 2.0
 * @copyright Yoshimi Robotics. All rights reserved.
 * @package YRAPI
 **/


error_reporting(E_ALL);

require 'YRAPIMethod.php';


class YRAPIManager {
	
	
	private $_plugins = array();
	private $_data = "";
	private $_apiCall = "";
	private $_apiKey = "";
	
	private $_database = "";
	private $_error = "";
	
	const ERROR_INVALID_APIKEY = "APIKey invalid";
	const ERROR_PLUGIN_NOT_FOUND = "Method not immplemented";
	const ERROR_NO_DATA_PROVIDED = "No data provided";
	const ERROR_JSON_ECODE_FAILED = "Unable to encode JSON data";
	const ERROR_JSON_DECODE_FAILED = "Unable to decode JSON data";
	const ERROR_API_CALL_FAILED = "API plugin returned null value";
	
	
	
	public function addPlugin(&$plugin) {
		
		$this->_plugins[$plugin->name()] = $plugin;
		
	}
	
	
	public function setDatabaseHandler($databaseHandler) {
		
		$this->_database = $databaseHandler;
		
	}
	
	
	public function setErrorHandler($errorHandler) {
		
		$this->_error = $errorHandler;
		
	}
	
	
	public function run() { 
	
		$this->prepareAPIData();
		
		
		if (!$this->validAPIKey($this->_apiKey))
			$this->_error->raiseException('com.frequenciesapp.api', '406,0', YRAPIManager::ERROR_INVALID_APIKEY);
			
			
		$plugin = $this->_apiCall['Action'];
		if (!isset($this->_plugins[$plugin]))
			$this->_error->raiseException('com.frequenciesapp.api', '406,1', YRAPIManager::ERROR_PLUGIN_NOT_FOUND);
		
		
		$this->_data = $this->_apiCall['Data'];
		if ($this->_plugins[$plugin]->requiresData())
			if (!isset($this->_data) || empty($this->_data))
				$this->_error->raiseException('com.frequenciesapp.api', '406,2', YRAPIManager::ERROR_NO_DATA_PROVIDED);		
	
		
		$output = $this->_plugins[$plugin]->invoke($this->_data);
		if (!isset($output))
			$this->_error->raiseException('com.frequenciesapp.api', '406,3', YRAPIManager::ERROR_API_CALL_FAILED);
	
	
		$JSONOutput = json_encode($output);
		if (!isset($JSONOutput))
			$this->_error->raiseException('com.frequenciesapp.api', '406,4', YRAPIManager::ERROR_JSON_ENCODE_FAILED);
	
	
		print($JSONOutput);
	
	}
	
	
	
	
	private function validAPIKey($APIKey) {
		
		$validAPIKey = $this->_database->APIKeyIsValid($APIKey);
		
		return $validAPIKey;
		
	}
	
	private function prepareAPIData() {
		
		if ($_SERVER['REQUEST_METHOD'] == "POST") {
			
			$HTTPBody = @file_get_contents('php://input');
			if (!isset($HTTPBody))
				$this->_error->raiseException('com.frequenciesapp.api', '406,5', YRAPIManager::ERROR_NO_DATA_PROVIDED);
			
			$this->_apiCall = json_decode($HTTPBody, true);
			if (!isset($this->_apiCall))
				$this->_error->raiseException('com.frequenciesapp.api', '409,6', YRAPIManager::ERROR_JSON_DECODE_FAILED);
			
			$this->_apiKey = $this->_apiCall['APIKey'];
			if (!isset($this->_apiKey))
				$this->_error->raiseException('com.frequenciesapp.api', '406,7', YRAPIManager::ERROR_INVALID_APIKEY);
			
		} else if ($_SERVER['REQUEST_METHOD'] == "GET") {
			
			echo 'Using $_GET';
			
			$arguments = split(';', $_GET['Args']);

			$this->_data = array();
			
			if (strlen($arguments[0])) {
				
				foreach ($arguments as $key => $value) {
					
					$argumentSplit = split('=', $value);
					
					$this->_data[$argumentSplit[0]] = $argumentSplit[1];
					
				}
				
			} else 
				$this->_data = null;
				
			$this->_apiCall = array(
					'Action'	=>	$_GET['Action'],
					'APIKey'	=>	$_GET['APIKey'],
					'Data'		=>	$this->_data
			);	
			
				
		} else
			$this->_error->raiseException('com.frequenciesapp.api', '406,8', YRAPIManager::ERROR_NO_DATA_PROVIDED);
			
	}
	
	
	
}


?>