417 lines
10 KiB
PHP
417 lines
10 KiB
PHP
<?php
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class pluginAPI extends Plugin {
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private $method;
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public function init()
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{
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// Generate the API Token
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$token = md5( uniqid().time().DOMAIN );
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$this->dbFields = array(
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'token'=>$token, // API Token
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'numberOfItems'=>15 // Amount of items to return
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);
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}
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public function form()
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{
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global $L;
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$html = '<div class="alert alert-primary" role="alert">';
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$html .= $this->description();
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$html .= '</div>';
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$html .= '<div>';
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$html .= '<label>'.$L->get('URL').'</label>';
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$html .= '<p class="text-muted">'.DOMAIN.'/api/{endpoint}</p>';
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$html .= '</div>';
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$html .= '<div>';
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$html .= '<label>'.$L->get('API Token').'</label>';
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$html .= '<input name="token" type="text" value="'.$this->getValue('token').'">';
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$html .= '<span class="tip">'.$L->get('This token is for read only and is regenerated every time you install the plugin').'</span>';
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$html .= '</div>';
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$html .= '<div>';
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$html .= '<label>'.$L->get('Amount of pages').'</label>';
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$html .= '<input id="jsnumberOfItems" name="numberOfItems" type="text" value="'.$this->getValue('numberOfItems').'">';
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$html .= '<span class="tip">'.$L->get('This is the maximum of pages to return when you call to').'</span>';
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$html .= '</div>';
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return $html;
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}
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// API HOOKS
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// ----------------------------------------------------------------------------
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public function beforeAll()
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{
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global $url;
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global $pages;
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global $users;
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// CHECK URL
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// ------------------------------------------------------------
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$URI = $this->webhook('api', $returnsAfterURI=true, $fixed=false);
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if ($URI===false) {
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return false;
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}
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// METHOD
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// ------------------------------------------------------------
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$method = $this->getMethod();
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// METHOD INPUTS
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// ------------------------------------------------------------
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$inputs = $this->getMethodInputs();
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if (empty($inputs)) {
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$this->response(400, 'Bad Request', array('message'=>'Missing method inputs.'));
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}
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// ENDPOINT PARAMETERS
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// ------------------------------------------------------------
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$parameters = $this->getEndpointParameters($URI);
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if (empty($parameters)) {
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$this->response(400, 'Bad Request', array('message'=>'Missing endpoint parameters.'));
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}
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// API TOKEN
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// ------------------------------------------------------------
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// Token from the plugin, the user can change it on the settings of the plugin
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$tokenAPI = $this->getValue('token');
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// Check empty token
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if (empty($inputs['token'])) {
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$this->response(400, 'Bad Request', array('message'=>'Missing API token.'));
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}
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// Check if the token is valid
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if ($inputs['token']!==$tokenAPI) {
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$this->response(401, 'Unauthorized', array('message'=>'Invalid API token.'));
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}
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// AUTHENTICATION TOKEN
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// ------------------------------------------------------------
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$writePermissions = false;
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if (!empty($inputs['authentication'])) {
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// Get the user with the authentication token, FALSE if doesn't exit
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$username = $users->getByAuthToken($inputs['authentication']);
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if ($username!==false) {
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try {
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$user = new User($username);
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if (($user->role()=='admin') && ($user->enabled())) {
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// Loggin the user to create the session
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$login = new Login();
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$login->setLogin($username, 'admin');
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// Enable write permissions
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$writePermissions = true;
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}
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} catch (Exception $e) {
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// Continue without permissions
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}
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}
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}
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// ENDPOINTS
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// ------------------------------------------------------------
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// (GET) /api/pages
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if ( ($method==='GET') && ($parameters[0]==='pages') && empty($parameters[1]) ) {
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$data = $this->getPages($inputs);
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}
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// (GET) /api/pages/<key>
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elseif ( ($method==='GET') && ($parameters[0]==='pages') && !empty($parameters[1]) ) {
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$pageKey = $parameters[1];
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$data = $this->getPage($pageKey);
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}
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// (PUT) /api/pages/<key>
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elseif ( ($method==='PUT') && ($parameters[0]==='pages') && !empty($parameters[1]) && $writePermissions ) {
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$pageKey = $parameters[1];
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$data = $this->editPage($pageKey, $inputs);
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}
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// (DELETE) /api/pages/<key>
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elseif ( ($method==='DELETE') && ($parameters[0]==='pages') && !empty($parameters[1]) && $writePermissions ) {
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$pageKey = $parameters[1];
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$data = $this->deletePage($pageKey);
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}
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// (POST) /api/pages
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elseif ( ($method==='POST') && ($parameters[0]==='pages') && empty($parameters[1]) && $writePermissions ) {
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$data = $this->createPage($inputs);
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}
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// (GET) /api/tags
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elseif ( ($method==='GET') && ($parameters[0]==='tags') && empty($parameters[1]) ) {
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$data = $this->getTags();
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}
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// (GET) /api/tags/<key>
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elseif ( ($method==='GET') && ($parameters[0]==='tags') && !empty($parameters[1]) ) {
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$tagKey = $parameters[1];
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$data = $this->getTag($tagKey);
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}
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else {
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$this->response(401, 'Unauthorized', array('message'=>'Access denied or invalid endpoint.'));
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}
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$this->response(200, 'OK', $data);
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}
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// PRIVATE METHODS
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// ----------------------------------------------------------------------------
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private function getMethod()
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{
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// METHODS
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// ------------------------------------------------------------
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// GET
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// POST
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// PUT
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// DELETE
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$this->method = $_SERVER['REQUEST_METHOD'];
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return $this->method;
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}
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private function getMethodInputs()
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{
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switch($this->method) {
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case "POST":
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$inputs = $_POST;
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break;
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case "GET":
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case "DELETE":
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$inputs = $_GET;
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break;
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case "PUT":
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$inputs = '';
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break;
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default:
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$inputs = json_encode(array());
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break;
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}
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// Try to get raw/json data
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if (empty($inputs)) {
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$inputs = file_get_contents('php://input');
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}
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return $this->cleanInputs($inputs);
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}
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// Returns an array with key=>value with the inputs
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// If the content is JSON is parsed to array
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private function cleanInputs($inputs)
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{
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$tmp = array();
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if (is_array($inputs)) {
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foreach ($inputs as $key=>$value) {
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$tmp[$key] = Sanitize::html($value);
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}
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} elseif (is_string($inputs)) {
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$tmp = json_decode($inputs, true);
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if (json_last_error()!==JSON_ERROR_NONE) {
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$tmp = array();
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}
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}
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return $tmp;
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}
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private function getEndpointParameters($URI)
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{
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// ENDPOINT Parameters
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// ------------------------------------------------------------
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// /api/pages | GET | returns all pages
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// /api/pages/{key} | GET | returns the page with the {key}
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// /api/pages | POST | create a new page
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$URI = ltrim($URI, '/');
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$parameters = explode('/', $URI);
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// Sanitize parameters
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foreach ($parameters as $key=>$value) {
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$parameters[$key] = Sanitize::html($value);
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}
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return $parameters;
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}
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private function response($code=200, $message='OK', $data=array())
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{
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header('HTTP/1.1 '.$code.' '.$message);
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header('Access-Control-Allow-Origin: *');
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header('Content-Type: application/json');
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$json = json_encode($data);
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exit($json);
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}
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private function getTags()
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{
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global $tags;
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$tmp = array(
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'status'=>'0',
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'message'=>'List of tags.',
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'data'=>array()
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);
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foreach ($tags->keys() as $key) {
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$tag = $tags->getMap($key);
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array_push($tmp['data'], $tag);
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}
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return $tmp;
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}
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// Returns the tag information and the pages releated to the tag
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// The array with the pages has the complete information of each page
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private function getTag($key)
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{
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try {
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$tag = new Tag($key);
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} catch (Exception $e) {
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return array(
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'status'=>'1',
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'message'=>'Tag not found by the tag key: '.$key
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);
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}
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$list = array();
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foreach ($tag->pages() as $pageKey) {
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try {
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$page = new Page($pageKey);
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array_push($list, $page->json($returnsArray=true));
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} catch (Exception $e){}
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}
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$data = $tag->json($returnsArray=true);
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$data['pages'] = $list;
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return array(
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'status'=>'0',
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'message'=>'Tag data and pages related to the tag.',
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'data'=>$data
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);
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}
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private function getPages($args)
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{
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global $pages;
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// Parameters and the default values
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$published = (isset($args['published'])?$args['published']:true);
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$static = (isset($args['static'])?$args['static']:false);
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$draft = (isset($args['draft'])?$args['draft']:false);
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$sticky = (isset($args['sticky'])?$args['sticky']:false);
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$scheduled = (isset($args['scheduled'])?$args['scheduled']:false);
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$untagged = (isset($args['untagged'])?$args['untagged']:false);
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$numberOfItems = $this->getValue('numberOfItems');
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$pageNumber = 1;
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$list = $pages->getList($pageNumber, $numberOfItems, $published, $static, $sticky, $draft, $scheduled);
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$tmp = array(
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'status'=>'0',
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'message'=>'List of pages, number of items: '.$numberOfItems,
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'data'=>array()
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);
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foreach ($list as $pageKey) {
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try {
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// Create the page object from the page key
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$page = new Page($pageKey);
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if ($untagged) {
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if (empty($page->tags())) {
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// Push the page to the data array for the response
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array_push($tmp['data'], $page->json($returnsArray=true));
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}
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} else{
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array_push($tmp['data'], $page->json($returnsArray=true));
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}
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} catch (Exception $e) {
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// Continue
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}
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}
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return $tmp;
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}
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private function getPage($key)
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{
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try {
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$page = new Page($key);
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return array(
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'status'=>'0',
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'message'=>'Page filtered by key: '.$key,
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'data'=>$page->json( $returnsArray=true )
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);
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} catch (Exception $e) {
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return array(
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'status'=>'1',
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'message'=>'Page not found.'
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);
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}
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}
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private function createPage($args)
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{
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// Unsanitize content because all values are sanitized
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if (isset($args['content'])) {
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$args['content'] = Sanitize::htmlDecode($args['content']);
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}
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// This function is defined on functions.php
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$key = createPage($args);
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if ($key===false) {
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return array(
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'status'=>'1',
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'message'=>'Error trying to create the new page.'
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);
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}
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return array(
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'status'=>'0',
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'message'=>'Page created.',
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'data'=>array('key'=>$key)
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);
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}
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private function editPage($key, $args)
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{
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// Unsanitize content because all values are sanitized
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if (isset($args['content'])) {
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$args['content'] = Sanitize::htmlDecode($args['content']);
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}
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$args['key'] = $key;
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$newKey = editPage($args);
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if ($newKey===false) {
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return array(
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'status'=>'1',
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'message'=>'Error trying to edit the page.'
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);
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}
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return array(
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'status'=>'0',
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'message'=>'Page edited.',
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'data'=>array('key'=>$newKey)
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);
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}
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private function deletePage($key)
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{
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if (deletePage($key)) {
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return array(
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'status'=>'0',
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'message'=>'Page deleted.'
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);
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}
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return array(
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'status'=>'1',
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'message'=>'Error trying to delete the page.'
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);
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}
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} |