Imitate the REST api using url parameter based implementation
Reason for this implementation is some clients having trouble configuring the rest api either due to not having proper access to the webserver in a shared hosting environment or security restrictions. But still from icehrm frontend we need to consume the backend rest api.
This commit is contained in:
Alan Cell
41
core/api.php
Normal file
41
core/api.php
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@@ -0,0 +1,41 @@
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<?php
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define('CLIENT_PATH',dirname(__FILE__));
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include ("config.base.php");
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include ("include.common.php");
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include("server.includes.inc.php");
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if(\Classes\SettingsManager::getInstance()->getSetting('Api: REST Api Enabled') == '1') {
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\Utils\LogManager::getInstance()->info("Request: " . $_REQUEST);
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if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') {
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http_response_code(200);
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exit();
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}
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define('REST_API_PATH', '/');
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$echoRoute = \Classes\Macaw::get(REST_API_PATH . 'echo', function () {
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echo "Echo " . rand();
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});
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\Utils\LogManager::getInstance()->debug('Api registered URI: '.$echoRoute);
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$moduleManagers = \Classes\BaseService::getInstance()->getModuleManagers();
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foreach ($moduleManagers as $moduleManagerObj) {
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$moduleManagerObj->setupRestEndPoints();
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}
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$method = $_SERVER['REQUEST_METHOD'];
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if (strtoupper($method) === 'GET') {
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\Classes\IceRoute::dispatch($_GET['url'], $method);
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} else {
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$method = strtoupper($_REQUEST['method']);
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\Classes\IceRoute::dispatch($_REQUEST['url'], $method);
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}
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}else{
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echo "REST Api is not enabled. Please set 'Api: REST Api Enabled' setting to true";
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}
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177
core/src/Classes/IceRoute.php
Executable file
177
core/src/Classes/IceRoute.php
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@@ -0,0 +1,177 @@
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<?php
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namespace Classes;
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/**
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* @method static IceRoute get(string $route, Callable $callback)
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* @method static IceRoute post(string $route, Callable $callback)
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* @method static IceRoute put(string $route, Callable $callback)
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* @method static IceRoute delete(string $route, Callable $callback)
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* @method static IceRoute options(string $route, Callable $callback)
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* @method static IceRoute head(string $route, Callable $callback)
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*/
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class IceRoute
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{
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public static $halts = false;
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public static $routes = array();
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public static $methods = array();
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public static $callbacks = array();
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public static $patterns = array(
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':any' => '[^/]+',
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':num' => '[0-9]+',
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':all' => '.*'
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);
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public static $error_callback;
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/**
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* Defines a route w/ callback and method
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*/
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public static function __callstatic($method, $params)
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{
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$uri = $params[0][0];
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$callback = $params[0][1];
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array_push(self::$routes, $uri);
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array_push(self::$methods, strtoupper($method));
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array_push(self::$callbacks, $callback);
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return $uri;
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}
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/**
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* Defines callback if route is not found
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*/
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public static function error($callback)
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{
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self::$error_callback = $callback;
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}
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public static function haltOnMatch($flag = true)
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{
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self::$halts = $flag;
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}
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/**
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* Runs the callback for the given request
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*/
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public static function dispatch($uri, $method)
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{
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$searches = array_keys(static::$patterns);
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$replaces = array_values(static::$patterns);
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$found_route = false;
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self::$routes = str_replace('//', '/', self::$routes);
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// check if route is defined without regex
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if (in_array($uri, self::$routes)) {
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$route_pos = array_keys(self::$routes, $uri);
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foreach ($route_pos as $route) {
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//using an ANY option to match both GET and POST requests
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if (self::$methods[$route] == $method || self::$methods[$route] == 'ANY') {
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$found_route = true;
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//if route is not an object
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if (!is_object(self::$callbacks[$route])) {
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//grab all parts based on a / separator
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$parts = explode('/', self::$callbacks[$route]);
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//collect the last index of the array
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$last = end($parts);
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//grab the controller name and method call
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$segments = explode('@', $last);
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//instanitate controller
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$controller = new $segments[0]();
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//call method
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$controller->$segments[1]();
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if (self::$halts) {
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return;
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}
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} else {
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//call closure
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call_user_func(self::$callbacks[$route]);
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if (self::$halts) {
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return;
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}
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}
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}
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}
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} else {
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// check if defined with regex
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$pos = 0;
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foreach (self::$routes as $route) {
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if (strpos($route, ':') !== false) {
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$route = str_replace($searches, $replaces, $route);
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}
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if (preg_match('#^' . $route . '$#', $uri, $matched)) {
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if (self::$methods[$pos] == $method) {
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$found_route = true;
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array_shift($matched); //remove $matched[0] as [1] is the first parameter.
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if (!is_object(self::$callbacks[$pos])) {
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//grab all parts based on a / separator
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$parts = explode('/', self::$callbacks[$pos]);
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//collect the last index of the array
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$last = end($parts);
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//grab the controller name and method call
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$segments = explode('@', $last);
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//instanitate controller
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$controller = new $segments[0]();
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//fix multi parameters
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if (!method_exists($controller, $segments[1])) {
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echo "controller and action not found";
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} else {
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call_user_func_array(array($controller, $segments[1]), $matched);
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}
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//call method and pass any extra parameters to the method
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// $controller->$segments[1](implode(",", $matched));
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if (self::$halts) {
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return;
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}
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} else {
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call_user_func_array(self::$callbacks[$pos], $matched);
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if (self::$halts) {
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return;
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}
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}
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}
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}
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$pos++;
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}
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}
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// run the error callback if the route was not found
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if ($found_route == false) {
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if (!self::$error_callback) {
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self::$error_callback = function () {
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header($_SERVER['SERVER_PROTOCOL']." 404 Not Found");
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echo '404';
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};
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}
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call_user_func(self::$error_callback);
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}
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}
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}
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@@ -42,6 +42,8 @@ class Macaw
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array_push(self::$methods, strtoupper($method));
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array_push(self::$callbacks, $callback);
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call_user_func('\Classes\IceRoute::'.$method, $params);
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return $uri;
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}
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@@ -420,6 +420,8 @@ class RestEndPoint
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if (preg_match('/Bearer\s(\S+)/', $headers, $matches)) {
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$token = $matches[1];
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}
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} else {
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$token = $_GET['token'];
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}
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if (strlen($token) > 32) {
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