bludit/bl-plugins/api/plugin.php

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<?php
class pluginAPI extends Plugin {
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private $method;
public function init()
{
// Generate the API Token
$token = md5( uniqid().time().DOMAIN );
$this->dbFields = array(
'token'=>$token, // API Token
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'amountOfItems'=>15 // Amount of items to return
);
}
public function form()
{
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global $Language;
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$html = '<div>';
$html .= '<label>'.$Language->get('API Token').'</label>';
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$html .= '<input name="token" type="text" value="'.$this->getValue('token').'">';
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$html .= '<span class="tip">'.$Language->get('This token is for read only and is regenerated every time you install the plugin').'</span>';
$html .= '</div>';
$html .= '<div>';
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$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('The amount of pages to return when you call to /api/pages').'</span>';
$html .= '</div>';
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return $html;
}
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// API HOOKS
// ----------------------------------------------------------------------------
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public function beforeAll()
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{
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global $Url;
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global $dbPages;
global $dbUsers;
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// CHECK URL
// ------------------------------------------------------------
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$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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// METHOD
// ------------------------------------------------------------
$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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$this->response(404, 'Not Found', array('message'=>'Missing method inputs.'));
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}
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// ENDPOINT PARAMETERS
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// ------------------------------------------------------------
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$parameters = $this->getEndpointParameters($URI);
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if ( empty($parameters) ) {
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$this->response(404, 'Not Found', array('message'=>'Missing endpoint parameters.'));
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}
// API TOKEN
// ------------------------------------------------------------
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// Token from the plugin, the user can change it on the settings of the plugin
$tokenAPI = $this->getValue('token');
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// Check empty token
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if ( empty($inputs['token']) ) {
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$this->response(404, 'Not Found', array('message'=>'Missing API token.'));
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}
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// Check if the token is valid
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if ($inputs['token']!==$tokenAPI) {
$this->response(401, 'Unauthorized', array('message'=>'Invalid API token.'));
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}
// AUTHENTICATION TOKEN
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// ------------------------------------------------------------
$writePermissions = false;
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if ( !empty($inputs['authentication']) ) {
// Get the user with the authentication token
$username = $dbUsers->getByAuthToken($inputs['authentication']);
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if ($username!==false) {
// Enable write permissions
$writePermissions = true;
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}
}
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// ENDPOINTS
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// ------------------------------------------------------------
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// (GET) /api/pages
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if ( ($method==='GET') && ($parameters[0]==='pages') && empty($parameters[1]) ) {
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$data = $this->getPages();
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}
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// (GET) /api/pages/<key>
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elseif ( ($method==='GET') && ($parameters[0]==='pages') && !empty($parameters[1]) ) {
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$data = $this->getPage($parameters[1]);
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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 = $this->newPage($inputs);
}
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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}
// PRIVATE METHODS
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// ----------------------------------------------------------------------------
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private function getMethod()
{
// METHODS
// ------------------------------------------------------------
// GET
// POST
// PUT
// DELETE
$this->method = $_SERVER['REQUEST_METHOD'];
return $this->method;
}
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private function getMethodInputs()
{
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switch($this->method) {
case "POST":
$inputs = $_POST;
break;
case "GET":
case "DELETE":
$inputs = $_GET;
break;
case "PUT":
$inputs = file_get_contents("php://input");
break;
default:
$inputs = json_encode(array());
break;
}
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return $this->cleanInputs($inputs);
}
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private function getEndpointParameters($URI)
{
// ENDPOINT Parameters
// ------------------------------------------------------------
// /api/pages | GET | returns all pages
// /api/pages/{key} | GET | returns the page with the {key}
// /api/pages | POST | create a new page
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$URI = ltrim($URI, '/');
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$parameters = explode('/', $URI);
// Sanitize parameters
foreach ($parameters as $key=>$value) {
$parameters[$key] = Sanitize::html($value);
}
return $parameters;
}
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private function cleanInputs($inputs)
{
$tmp = array();
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if ( is_array($inputs) ) {
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foreach($inputs as $key=>$value) {
$tmp[$key] = Sanitize::html($value);
}
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} elseif ( is_string($inputs) ) {
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$tmp = json_decode($inputs, true);
if(json_last_error()===0) {
$tmp = array();
}
}
return $tmp;
}
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private function response($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);
}
private function getPage($key)
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{
// Generate the object Page
$Page = buildPage($key);
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if (!$Page) {
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return array(
'status'=>'1',
'message'=>'Page not found.'
);
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}
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$data = array();
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$data['status'] = '0';
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$data['message'] = 'Page filtered by key: '.$key;
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$data['data'] = $Page->json( $returnsArray=true );
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return $data;
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}
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private function getPages()
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{
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global $dbPages;
$onlyPublished = true;
$amountOfItems = $this->getValue('amountOfItems');
$pageNumber = 1;
$list = $dbPages->getList($pageNumber, $amountOfItems, $onlyPublished);
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$tmp = array(
'status'=>'0',
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'message'=>'List of pages, amount of items: '.$amountOfItems,
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'data'=>array()
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);
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// Get keys of pages
$keys = array_keys($list);
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foreach ($keys as $pageKey) {
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// Create the page object from the page key
$page = buildPage($pageKey);
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array_push($tmp['data'], $page->json( $returnsArray=true ));
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}
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return $tmp;
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}
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private function createPage($args)
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{
// This function is defined on functions.php
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return createPage($args);
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}
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}