bludit/bl-plugins/api/plugin.php

345 lines
8.4 KiB
PHP

<?php
class pluginAPI extends Plugin {
private $method;
public function init()
{
// Generate the API Token
$token = md5( uniqid().time().DOMAIN );
$this->dbFields = array(
'token'=>$token, // API Token
'amountOfItems'=>15 // Amount of items to return
);
}
public function form()
{
global $Language;
$html = '<div class="alert alert-primary" role="alert">';
$html .= $this->description();
$html .= '</div>';
$html .= '<div>';
$html .= '<label>'.$Language->get('API Token').'</label>';
$html .= '<input name="token" type="text" value="'.$this->getValue('token').'">';
$html .= '<span class="tip">'.$Language->get('This token is for read only and is regenerated every time you install the plugin').'</span>';
$html .= '</div>';
$html .= '<div>';
$html .= '<label>'.$Language->get('Amount of pages').'</label>';
$html .= '<input id="jsamountOfItems" name="amountOfItems" type="text" value="'.$this->getValue('amountOfItems').'">';
$html .= '<span class="tip">'.$Language->get('This is the maximum of pages to return when you call to').'</span>';
$html .= '</div>';
return $html;
}
// API HOOKS
// ----------------------------------------------------------------------------
public function beforeAll()
{
global $url;
global $dbPages;
global $dbUsers;
// CHECK URL
// ------------------------------------------------------------
$URI = $this->webhook('api', $returnsAfterURI=true, $fixed=false);
if ($URI===false) {
return false;
}
// METHOD
// ------------------------------------------------------------
$method = $this->getMethod();
// METHOD INPUTS
// ------------------------------------------------------------
$inputs = $this->getMethodInputs();
if ( empty($inputs) ) {
$this->response(404, 'Not Found', array('message'=>'Missing method inputs.'));
}
// ENDPOINT PARAMETERS
// ------------------------------------------------------------
$parameters = $this->getEndpointParameters($URI);
if ( empty($parameters) ) {
$this->response(404, 'Not Found', array('message'=>'Missing endpoint parameters.'));
}
// API TOKEN
// ------------------------------------------------------------
// Token from the plugin, the user can change it on the settings of the plugin
$tokenAPI = $this->getValue('token');
// Check empty token
if (empty($inputs['token'])) {
$this->response(404, 'Not Found', array('message'=>'Missing API token.'));
}
// Check if the token is valid
if ($inputs['token']!==$tokenAPI) {
$this->response(401, 'Unauthorized', array('message'=>'Invalid API token.'));
}
// AUTHENTICATION TOKEN
// ------------------------------------------------------------
$writePermissions = false;
if ( !empty($inputs['authentication']) ) {
// Get the user with the authentication token, FALSE if doesn't exit
$username = $dbUsers->getByAuthToken($inputs['authentication']);
if ($username!==false) {
// Get the object user to check the role
$user = $dbUsers->getUser($username);
if (($user->role()=='admin') && ($user->enabled())) {
// Loggin the user to create the session
$login = new Login();
$login->setLogin($username, 'admin');
// Enable write permissions
$writePermissions = true;
}
}
}
// ENDPOINTS
// ------------------------------------------------------------
// (GET) /api/pages
if ( ($method==='GET') && ($parameters[0]==='pages') && empty($parameters[1]) ) {
$data = $this->getPages();
}
// (GET) /api/pages/<key>
elseif ( ($method==='GET') && ($parameters[0]==='pages') && !empty($parameters[1]) ) {
$pageKey = $parameters[1];
$data = $this->getPage($pageKey);
}
// (PUT) /api/pages/<key>
elseif ( ($method==='PUT') && ($parameters[0]==='pages') && !empty($parameters[1]) && $writePermissions ) {
$pageKey = $parameters[1];
$data = $this->editPage($pageKey, $inputs);
}
// (DELETE) /api/pages/<key>
elseif ( ($method==='DELETE') && ($parameters[0]==='pages') && !empty($parameters[1]) && $writePermissions ) {
$pageKey = $parameters[1];
$data = $this->deletePage($pageKey);
}
// (POST) /api/pages
elseif ( ($method==='POST') && ($parameters[0]==='pages') && empty($parameters[1]) && $writePermissions ) {
$data = $this->createPage($inputs);
}
else {
$this->response(401, 'Unauthorized', array('message'=>'Access denied or invalid endpoint.'));
}
$this->response(200, 'OK', $data);
}
// PRIVATE METHODS
// ----------------------------------------------------------------------------
private function getMethod()
{
// METHODS
// ------------------------------------------------------------
// GET
// POST
// PUT
// DELETE
$this->method = $_SERVER['REQUEST_METHOD'];
return $this->method;
}
private function getMethodInputs()
{
switch($this->method) {
case "POST":
$inputs = $_POST;
break;
case "GET":
case "DELETE":
$inputs = $_GET;
break;
case "PUT":
$inputs = '';
break;
default:
$inputs = json_encode(array());
break;
}
// Try to get raw/json data
if (empty($inputs)) {
$inputs = file_get_contents('php://input');
}
return $this->cleanInputs($inputs);
}
// Returns an array with key=>value
// If the content is JSON is parsed to array
private function cleanInputs($inputs)
{
$tmp = array();
if (is_array($inputs)) {
foreach ($inputs as $key=>$value) {
$tmp[$key] = Sanitize::html($value);
}
} elseif (is_string($inputs)) {
$tmp = json_decode($inputs, true);
if (json_last_error()!==JSON_ERROR_NONE) {
$tmp = array();
}
}
return $tmp;
}
private function getEndpointParameters($URI)
{
// ENDPOINT Parameters
// ------------------------------------------------------------
// /api/pages | GET | returns all pages
// /api/pages/{key} | GET | returns the page with the {key}
// /api/pages | POST | create a new page
$URI = ltrim($URI, '/');
$parameters = explode('/', $URI);
// Sanitize parameters
foreach ($parameters as $key=>$value) {
$parameters[$key] = Sanitize::html($value);
}
return $parameters;
}
private function response($code=200, $message='OK', $data=array())
{
header('HTTP/1.1 '.$code.' '.$message);
header('Access-Control-Allow-Origin: *');
header('Content-Type: application/json');
$json = json_encode($data);
exit($json);
}
private function getPages()
{
global $dbPages;
$onlyPublished = true;
$amountOfItems = $this->getValue('amountOfItems');
$pageNumber = 1;
$list = $dbPages->getList($pageNumber, $amountOfItems, $onlyPublished);
$tmp = array(
'status'=>'0',
'message'=>'List of pages, amount of items: '.$amountOfItems,
'data'=>array()
);
// Get keys of pages
foreach ($list as $pageKey) {
try {
// Create the page object from the page key
$page = new Page($pageKey);
array_push($tmp['data'], $page->json( $returnsArray=true ));
} catch (Exception $e) {
// Continue
}
}
return $tmp;
}
private function getPage($key)
{
try {
$page = new Page($key);
return array(
'status'=>'0',
'message'=>'Page filtered by key: '.$key,
'data'=>$page->json( $returnsArray=true )
);
} catch (Exception $e) {
return array(
'status'=>'1',
'message'=>'Page not found.'
);
}
}
private function createPage($args)
{
// Unsanitize content because all values are sanitized
if (isset($args['content'])) {
$args['content'] = Sanitize::htmlDecode($args['content']);
}
// This function is defined on functions.php
$key = createPage($args);
if ($key===false) {
return array(
'status'=>'1',
'message'=>'Error trying to create the new page.'
);
}
return array(
'status'=>'0',
'message'=>'Page created.',
'data'=>array('key'=>$key)
);
}
private function editPage($key, $args)
{
// Unsanitize content because all values are sanitized
if (isset($args['content'])) {
$args['content'] = Text::htmlDecode($args['content']);
}
$args['key'] = $key;
$newKey = editPage($args);
if ($newKey===false) {
return array(
'status'=>'1',
'message'=>'Error trying to edit the page.'
);
}
return array(
'status'=>'0',
'message'=>'Page edited.',
'data'=>array('key'=>$newKey)
);
}
private function deletePage($key)
{
if (deletePage($key)) {
return array(
'status'=>'0',
'message'=>'Page deleted.'
);
}
return array(
'status'=>'1',
'message'=>'Error trying to delete the page.'
);
}
}