mirror of
https://github.com/pierre42100/ComunicAPI
synced 2024-11-23 22:09:29 +00:00
560 lines
16 KiB
PHP
Executable File
560 lines
16 KiB
PHP
Executable File
<?php
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////////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2009 Jacob Wright
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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////////////////////////////////////////////////////////////////////////////////
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namespace Jacwright\RestServer;
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require(__DIR__ . '/RestFormat.php');
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require(__DIR__ . '/RestException.php');
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use Exception;
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use ReflectionClass;
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use ReflectionObject;
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use ReflectionMethod;
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use DOMDocument;
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////////////////////////////////////////////////////////////////////////////////
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////////// THESE FUNCTIONS FIXE ENCODING ISSUES DUE TO PREVIOUS ENCODING ///////
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/////////// CHOICES ////////////////////////////////////////////////////////////
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//////////// THEY HAVE NOT BEEN TESTED ENOUGH, USE WITH CAUTION !!!!! //////////
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////////////////////////////////////////////////////////////////////////////////
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function do_fix_utf8($input){
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if(\json_encode($input) == FALSE)
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return utf8_encode($input);
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return $input;
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}
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function check_utf8($input) {
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if(is_array($input)) {
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$out = array();
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foreach($input as $key => $value)
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$out[$key] = check_utf8($value);
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return $out;
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}
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else
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return mb_detect_encoding($input) == "UTF-8" ? do_fix_utf8($input) : $input;
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}
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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/**
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* Description of RestServer
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*
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* @author jacob
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*/
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class RestServer
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{
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//@todo add type hint
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public $url;
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public $method;
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public $params;
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public $format;
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public $cacheDir = __DIR__;
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public $realm;
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public $mode;
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public $root;
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public $rootPath;
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public $jsonAssoc = false;
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protected $map = array();
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protected $errorClasses = array();
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protected $cached;
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/**
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* The constructor.
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*
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* @param string $mode The mode, either debug or production
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*/
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public function __construct($mode = 'debug', $realm = 'Rest Server')
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{
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$this->mode = $mode;
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$this->realm = $realm;
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// Set the root
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$dir = str_replace('\\', '/', dirname(str_replace($_SERVER['DOCUMENT_ROOT'], '', $_SERVER['SCRIPT_FILENAME'])));
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if ($dir == '.') {
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$dir = '/';
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} else {
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// add a slash at the beginning and end
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if (substr($dir, -1) != '/') $dir .= '/';
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if (substr($dir, 0, 1) != '/') $dir = '/' . $dir;
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}
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$this->root = $dir;
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}
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public function __destruct()
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{
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if ($this->mode == 'production' && !$this->cached) {
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if (function_exists('apc_store')) {
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apc_store('urlMap', $this->map);
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} else {
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file_put_contents($this->cacheDir . '/urlMap.cache', serialize($this->map));
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}
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}
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}
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public function refreshCache()
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{
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$this->map = array();
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$this->cached = false;
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}
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public function unauthorized($ask = false)
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{
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if ($ask) {
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header("WWW-Authenticate: Basic realm=\"$this->realm\"");
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}
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throw new RestException(401, "You are not authorized to access this resource.");
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}
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public function handle()
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{
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$this->url = $this->getPath();
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$this->method = $this->getMethod();
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$this->format = $this->getFormat();
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if ($this->method == 'PUT' || $this->method == 'POST' || $this->method == 'PATCH') {
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$this->data = $this->getData();
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}
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list($obj, $method, $params, $this->params, $noAuth) = $this->findUrl();
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if ($obj) {
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if (is_string($obj)) {
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if (class_exists($obj)) {
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$obj = new $obj();
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} else {
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throw new Exception("Class $obj does not exist");
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}
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}
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$obj->server = $this;
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try {
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if (method_exists($obj, 'init')) {
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$obj->init();
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}
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if (!$noAuth && method_exists($obj, 'authorize')) {
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if (!$obj->authorize()) {
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$this->sendData($this->unauthorized(true)); //@todo unauthorized returns void
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exit;
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}
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}
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$result = call_user_func_array(array($obj, $method), $params);
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if ($result !== null) {
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$this->sendData($result);
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}
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} catch (RestException $e) {
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$this->handleError($e->getCode(), $e->getMessage());
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}
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} else {
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$this->handleError(404);
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}
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}
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public function setRootPath($path)
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{
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$this->rootPath = '/'.trim($path, '/').'/';
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}
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public function setJsonAssoc($value)
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{
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$this->jsonAssoc = ($value === true);
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}
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public function addClass($class, $basePath = '')
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{
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$this->loadCache();
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if (!$this->cached) {
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if (is_string($class) && !class_exists($class)){
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throw new Exception('Invalid method or class');
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} elseif (!is_string($class) && !is_object($class)) {
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throw new Exception('Invalid method or class; must be a classname or object');
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}
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if (substr($basePath, 0, 1) == '/') {
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$basePath = substr($basePath, 1);
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}
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if ($basePath && substr($basePath, -1) != '/') {
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$basePath .= '/';
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}
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$this->generateMap($class, $basePath);
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}
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}
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public function addErrorClass($class)
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{
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$this->errorClasses[] = $class;
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}
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public function handleError($statusCode, $errorMessage = null)
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{
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$method = "handle$statusCode";
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foreach ($this->errorClasses as $class) {
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if (is_object($class)) {
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$reflection = new ReflectionObject($class);
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} elseif (class_exists($class)) {
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$reflection = new ReflectionClass($class);
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}
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if (isset($reflection))
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{
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if ($reflection->hasMethod($method))
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{
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$obj = is_string($class) ? new $class() : $class;
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$obj->$method();
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return;
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}
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}
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}
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if (!$errorMessage)
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{
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$errorMessage = $this->codes[$statusCode];
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}
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$this->setStatus($statusCode);
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$this->sendData(array('error' => array('code' => $statusCode, 'message' => $errorMessage)));
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}
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protected function loadCache()
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{
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if ($this->cached !== null) {
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return;
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}
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$this->cached = false;
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if ($this->mode == 'production') {
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if (function_exists('apc_fetch')) {
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$map = apc_fetch('urlMap');
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} elseif (file_exists($this->cacheDir . '/urlMap.cache')) {
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$map = unserialize(file_get_contents($this->cacheDir . '/urlMap.cache'));
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}
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if (isset($map) && is_array($map)) {
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$this->map = $map;
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$this->cached = true;
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}
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} else {
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if (function_exists('apc_delete')) {
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apc_delete('urlMap');
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} else {
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@unlink($this->cacheDir . '/urlMap.cache');
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}
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}
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}
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protected function findUrl()
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{
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$urls = $this->map[$this->method];
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if (!$urls) return null;
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foreach ($urls as $url => $call) {
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$args = $call[2];
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if (!strstr($url, '$')) {
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if ($url == $this->url) {
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if (isset($args['data'])) {
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$params = array_fill(0, $args['data'] + 1, null);
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$params[$args['data']] = $this->data; //@todo data is not a property of this class
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$call[2] = $params;
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} else {
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$call[2] = array();
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}
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return $call;
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}
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} else {
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$regex = preg_replace('/\\\\\$([\w\d]+)\.\.\./', '(?P<$1>.+)', str_replace('\.\.\.', '...', preg_quote($url)));
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$regex = preg_replace('/\\\\\$([\w\d]+)/', '(?P<$1>[^\/]+)', $regex);
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if (preg_match(":^$regex$:", urldecode($this->url), $matches)) {
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$params = array();
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$paramMap = array();
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if (isset($args['data'])) {
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$params[$args['data']] = $this->data;
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}
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foreach ($matches as $arg => $match) {
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if (is_numeric($arg)) continue;
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$paramMap[$arg] = $match;
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if (isset($args[$arg])) {
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$params[$args[$arg]] = $match;
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}
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}
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ksort($params);
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// make sure we have all the params we need
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end($params);
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$max = key($params);
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for ($i = 0; $i < $max; $i++) {
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if (!array_key_exists($i, $params)) {
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$params[$i] = null;
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}
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}
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ksort($params);
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$call[2] = $params;
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$call[3] = $paramMap;
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return $call;
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}
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}
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}
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}
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protected function generateMap($class, $basePath)
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{
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if (is_object($class)) {
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$reflection = new ReflectionObject($class);
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} elseif (class_exists($class)) {
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$reflection = new ReflectionClass($class);
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}
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$methods = $reflection->getMethods(ReflectionMethod::IS_PUBLIC); //@todo $reflection might not be instantiated
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foreach ($methods as $method) {
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$doc = $method->getDocComment();
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$noAuth = strpos($doc, '@noAuth') !== false;
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if (preg_match_all('/@url[ \t]+(GET|POST|PUT|PATCH|DELETE|HEAD|OPTIONS)[ \t]+\/?(\S*)/s', $doc, $matches, PREG_SET_ORDER)) {
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$params = $method->getParameters();
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foreach ($matches as $match) {
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$httpMethod = $match[1];
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$url = $basePath . $match[2];
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if ($url && $url[strlen($url) - 1] == '/') {
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$url = substr($url, 0, -1);
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}
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$call = array($class, $method->getName());
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$args = array();
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foreach ($params as $param) {
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$args[$param->getName()] = $param->getPosition();
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}
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$call[] = $args;
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$call[] = null;
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$call[] = $noAuth;
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$this->map[$httpMethod][$url] = $call;
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}
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}
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}
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}
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public function getPath()
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{
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$path = preg_replace('/\?.*$/', '', $_SERVER['REQUEST_URI']);
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// remove root from path
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if ($this->root) $path = preg_replace('/^' . preg_quote($this->root, '/') . '/', '', $path);
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// remove trailing format definition, like /controller/action.json -> /controller/action
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$path = preg_replace('/\.(\w+)$/i', '', $path);
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// remove root path from path, like /root/path/api -> /api
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if ($this->rootPath) $path = str_replace($this->rootPath, '', $path);
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return $path;
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}
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public function getMethod()
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{
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$method = $_SERVER['REQUEST_METHOD'];
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$override = isset($_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE']) ? $_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'] : (isset($_GET['method']) ? $_GET['method'] : '');
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if ($method == 'POST' && strtoupper($override) == 'PUT') {
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$method = 'PUT';
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} elseif ($method == 'POST' && strtoupper($override) == 'DELETE') {
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$method = 'DELETE';
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} elseif ($method == 'POST' && strtoupper($override) == 'PATCH') {
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$method = 'PATCH';
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}
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return $method;
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}
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public function getFormat()
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{
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$format = RestFormat::PLAIN;
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$accept_mod = null;
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if(isset($_SERVER["HTTP_ACCEPT"])) {
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$accept_mod = preg_replace('/\s+/i', '', $_SERVER['HTTP_ACCEPT']); // ensures that exploding the HTTP_ACCEPT string does not get confused by whitespaces
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}
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$accept = explode(',', $accept_mod);
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$override = '';
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if (isset($_REQUEST['format']) || isset($_SERVER['HTTP_FORMAT'])) {
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// give GET/POST precedence over HTTP request headers
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$override = isset($_SERVER['HTTP_FORMAT']) ? $_SERVER['HTTP_FORMAT'] : '';
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$override = isset($_REQUEST['format']) ? $_REQUEST['format'] : $override;
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$override = trim($override);
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}
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// Check for trailing dot-format syntax like /controller/action.format -> action.json
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if(preg_match('/\.(\w+)$/i', strtok($_SERVER["REQUEST_URI"],'?'), $matches)) {
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$override = $matches[1];
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}
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// Give GET parameters precedence before all other options to alter the format
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$override = isset($_GET['format']) ? $_GET['format'] : $override;
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if (isset(RestFormat::$formats[$override])) {
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$format = RestFormat::$formats[$override];
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} elseif (in_array(RestFormat::JSON, $accept)) {
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$format = RestFormat::JSON;
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}
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return $format;
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}
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public function getData()
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{
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$data = file_get_contents('php://input');
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$data = json_decode($data, $this->jsonAssoc);
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return $data;
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}
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public function sendData($data)
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{
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header("Cache-Control: no-cache, must-revalidate");
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header("Expires: 0");
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header('Content-Type: ' . $this->format);
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if ($this->format == RestFormat::XML) {
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if (is_object($data) && method_exists($data, '__keepOut')) {
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$data = clone $data;
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foreach ($data->__keepOut() as $prop) {
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unset($data->$prop);
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}
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}
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$this->xml_encode($data);
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} else {
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if (is_object($data) && method_exists($data, '__keepOut')) {
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$data = clone $data;
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foreach ($data->__keepOut() as $prop) {
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unset($data->$prop);
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}
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}
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$options = 0;
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if ($this->mode == 'debug') {
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$options = JSON_PRETTY_PRINT;
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}
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$options = $options | JSON_UNESCAPED_UNICODE;
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// Return data
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$output = json_encode($data, $options);
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if($output === FALSE)
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$output = json_encode(check_utf8($data), $options);
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echo $output;
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}
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}
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public function setStatus($code)
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{
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if (function_exists('http_response_code')) {
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http_response_code($code);
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} else {
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$protocol = $_SERVER['SERVER_PROTOCOL'] ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0';
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$code .= ' ' . $this->codes[strval($code)];
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header("$protocol $code");
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}
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}
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private function xml_encode($mixed, $domElement=null, $DOMDocument=null) { //@todo add type hint for $domElement and $DOMDocument
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if (is_null($DOMDocument)) {
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$DOMDocument =new DOMDocument;
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$DOMDocument->formatOutput = true;
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$this->xml_encode($mixed, $DOMDocument, $DOMDocument);
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echo $DOMDocument->saveXML();
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}
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else {
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if (is_array($mixed)) {
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foreach ($mixed as $index => $mixedElement) {
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if (is_int($index)) {
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if ($index === 0) {
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$node = $domElement;
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}
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else {
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$node = $DOMDocument->createElement($domElement->tagName);
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$domElement->parentNode->appendChild($node);
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}
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}
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else {
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$plural = $DOMDocument->createElement($index);
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$domElement->appendChild($plural);
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$node = $plural;
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if (!(rtrim($index, 's') === $index)) {
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$singular = $DOMDocument->createElement(rtrim($index, 's'));
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$plural->appendChild($singular);
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$node = $singular;
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}
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}
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$this->xml_encode($mixedElement, $node, $DOMDocument);
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}
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}
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else {
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$domElement->appendChild($DOMDocument->createTextNode($mixed));
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}
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}
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}
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private $codes = array(
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'100' => 'Continue',
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'200' => 'OK',
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'201' => 'Created',
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'202' => 'Accepted',
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'203' => 'Non-Authoritative Information',
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'204' => 'No Content',
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'205' => 'Reset Content',
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'206' => 'Partial Content',
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'300' => 'Multiple Choices',
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'301' => 'Moved Permanently',
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'302' => 'Found',
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'303' => 'See Other',
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'304' => 'Not Modified',
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'305' => 'Use Proxy',
|
|
'307' => 'Temporary Redirect',
|
|
'400' => 'Bad Request',
|
|
'401' => 'Unauthorized',
|
|
'402' => 'Payment Required',
|
|
'403' => 'Forbidden',
|
|
'404' => 'Not Found',
|
|
'405' => 'Method Not Allowed',
|
|
'406' => 'Not Acceptable',
|
|
'409' => 'Conflict',
|
|
'410' => 'Gone',
|
|
'411' => 'Length Required',
|
|
'412' => 'Precondition Failed',
|
|
'413' => 'Request Entity Too Large',
|
|
'414' => 'Request-URI Too Long',
|
|
'415' => 'Unsupported Media Type',
|
|
'416' => 'Requested Range Not Satisfiable',
|
|
'417' => 'Expectation Failed',
|
|
'500' => 'Internal Server Error',
|
|
'501' => 'Not Implemented',
|
|
'503' => 'Service Unavailable'
|
|
);
|
|
}
|