koblog/bl-plugins/api/plugin.php

766 lines
19 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
'numberOfItems' => 15 // Amount of items to return
);
}
public function getToken()
{
return $this->getValue('token');
}
public function form()
{
global $L;
$html = '<div class="alert alert-primary" role="alert">';
$html .= $this->description();
$html .= '</div>';
$html .= '<div>';
$html .= '<label>' . $L->get('URL') . '</label>';
$html .= '<p class="text-muted">' . DOMAIN_BASE . 'api/{endpoint}</p>';
$html .= '</div>';
$html .= '<div>';
$html .= '<label>' . $L->get('API Token') . '</label>';
$html .= '<input name="token" type="text" dir="auto" value="' . $this->getValue('token') . '">';
$html .= '<span class="tip">' . $L->get('This token is for read only and is regenerated every time you install the plugin') . '</span>';
$html .= '</div>';
$html .= '<div>';
$html .= '<label>' . $L->get('Amount of pages') . '</label>';
$html .= '<input id="jsnumberOfItems" name="numberOfItems" type="text" dir="auto" value="' . $this->getValue('numberOfItems') . '">';
$html .= '<span class="tip">' . $L->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 $pages;
global $users;
// 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(400, 'Bad Request', array('message' => 'Missing method inputs.'));
}
// ENDPOINT PARAMETERS
// ------------------------------------------------------------
$parameters = $this->getEndpointParameters($URI);
if (empty($parameters)) {
$this->response(400, 'Bad Request', 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'])) {
$this->response(400, 'Bad Request', array('message' => 'Missing API token.'));
}
// Check if the token is valid
if ($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 = $users->getByAuthToken($inputs['authentication']);
if ($username !== false) {
try {
$user = new User($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;
}
} catch (Exception $e) {
// Continue without permissions
}
}
}
// Clean inputs
// ------------------------------------------------------------
unset($inputs['token']);
unset($inputs['authentication']);
// ENDPOINTS
// ------------------------------------------------------------
// (GET) /api/pages
if (($method === 'GET') && ($parameters[0] === 'pages') && empty($parameters[1])) {
$data = $this->getPages($inputs);
}
// (GET) /api/pages/<key>
elseif (($method === 'GET') && ($parameters[0] === 'pages') && !empty($parameters[1])) {
$pageKey = $parameters[1];
if (isset($parameters[2])) {
$pageKey = $parameters[1] . '/' . $parameters[2];
}
$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);
}
// (GET) /api/settings
elseif (($method === 'GET') && ($parameters[0] === 'settings') && empty($parameters[1]) && $writePermissions) {
$data = $this->getSettings();
}
// (PUT) /api/settings
elseif (($method === 'PUT') && ($parameters[0] === 'settings') && empty($parameters[1]) && $writePermissions) {
$data = $this->editSettings($inputs);
}
// (POST) /api/images
elseif (($method === 'POST') && ($parameters[0] === 'images') && $writePermissions) {
$data = $this->uploadImage($inputs);
}
// (GET) /api/tags
elseif (($method === 'GET') && ($parameters[0] === 'tags') && empty($parameters[1])) {
$data = $this->getTags();
}
// (GET) /api/tags/<key>
elseif (($method === 'GET') && ($parameters[0] === 'tags') && !empty($parameters[1])) {
$tagKey = $parameters[1];
$data = $this->getTag($tagKey);
}
// (GET) /api/categories
elseif (($method === 'GET') && ($parameters[0] === 'categories') && empty($parameters[1])) {
$data = $this->getCategories();
}
// (GET) /api/categories/<key>
elseif (($method === 'GET') && ($parameters[0] === 'categories') && !empty($parameters[1])) {
$categoryKey = $parameters[1];
$data = $this->getCategory($categoryKey);
}
// (GET) /api/users
elseif (($method === 'GET') && ($parameters[0] === 'users') && empty($parameters[1])) {
$data = $this->getUsers();
}
// (GET) /api/users/<username>
elseif (($method === 'GET') && ($parameters[0] === 'users') && !empty($parameters[1])) {
$username = $parameters[1];
$data = $this->getUser($username);
}
// (GET) /api/files/<page-key>
elseif (($method === 'GET') && ($parameters[0] === 'files') && !empty($parameters[1])) {
$pageKey = $parameters[1];
$data = $this->getFiles($pageKey);
}
// (POST) /api/files/<page-key>
elseif (($method === 'POST') && ($parameters[0] === 'files') && !empty($parameters[1])) {
$pageKey = $parameters[1];
$data = $this->uploadFile($pageKey);
} 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 with the inputs
// 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 getTags()
{
global $tags;
$tmp = array(
'status' => '0',
'message' => 'List of tags.',
'data' => array()
);
foreach ($tags->keys() as $key) {
$tag = $tags->getMap($key);
array_push($tmp['data'], $tag);
}
return $tmp;
}
// Returns the tag information and the pages releated to the tag
// The array with the pages has the complete information of each page
private function getTag($key)
{
try {
$tag = new Tag($key);
} catch (Exception $e) {
return array(
'status' => '1',
'message' => 'Tag not found by the key: ' . $key
);
}
$list = array();
foreach ($tag->pages() as $pageKey) {
try {
$page = new Page($pageKey);
array_push($list, $page->json($returnsArray = true));
} catch (Exception $e) {
}
}
$data = $tag->json($returnsArray = true);
$data['pages'] = $list;
return array(
'status' => '0',
'message' => 'Information about the tag and pages related.',
'data' => $data
);
}
private function getPages($args)
{
global $pages;
// Parameters and the default values
$published = (isset($args['published']) ? $args['published'] == 'true' : true);
$static = (isset($args['static']) ? $args['static'] == 'true' : false);
$draft = (isset($args['draft']) ? $args['draft'] == 'true' : false);
$sticky = (isset($args['sticky']) ? $args['sticky'] == 'true' : false);
$scheduled = (isset($args['scheduled']) ? $args['scheduled'] == 'true' : false);
$untagged = (isset($args['untagged']) ? $args['untagged'] == 'true' : false);
$numberOfItems = (isset($args['numberOfItems']) ? $args['numberOfItems'] : 10);
$pageNumber = (isset($args['pageNumber']) ? $args['pageNumber'] : 1);
$list = $pages->getList($pageNumber, $numberOfItems, $published, $static, $sticky, $draft, $scheduled);
$tmp = array(
'status' => '0',
'message' => 'List of pages',
'numberOfItems' => $numberOfItems,
'data' => array()
);
foreach ($list as $pageKey) {
try {
// Create the page object from the page key
$page = new Page($pageKey);
if ($untagged) {
if (empty($page->tags())) {
// Push the page to the data array for the response
array_push($tmp['data'], $page->json($returnsArray = true));
}
} else {
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'])) {
$args['content'] = Sanitize::htmlDecode($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($key)) {
return array(
'status' => '0',
'message' => 'Page deleted.'
);
}
return array(
'status' => '1',
'message' => 'Error trying to delete the page.'
);
}
/*
| Upload an image and generate the thumbnails
| Returns the image and thumbnail URL
|
| @inputs array
| @inputs['uuid'] string Page UUID
| @_FILE array https://www.php.net/manual/en/reserved.variables.files.php
|
| @return array
*/
private function uploadImage($inputs)
{
// Set upload directory
if (isset($inputs['uuid']) && IMAGE_RESTRICT) {
$imageDirectory = PATH_UPLOADS_PAGES . $inputs['uuid'] . DS;
$thumbnailDirectory = $imageDirectory . 'thumbnails' . DS;
$imageEndpoint = DOMAIN_UPLOADS_PAGES . $inputs['uuid'] . '/';
$thumbnailEndpoint = $imageEndpoint . 'thumbnails' . '/';
if (!Filesystem::directoryExists($thumbnailDirectory)) {
Filesystem::mkdir($thumbnailDirectory, true);
}
} else {
$imageDirectory = PATH_UPLOADS;
$thumbnailDirectory = PATH_UPLOADS_THUMBNAILS;
$imageEndpoint = DOMAIN_UPLOADS;
$thumbnailEndpoint = DOMAIN_UPLOADS_THUMBNAILS;
}
if (!isset($_FILES['image'])) {
return array(
'status' => '1',
'message' => 'No image sent.'
);
}
if ($_FILES['image']['error'] != 0) {
return array(
'status' => '1',
'message' => 'Error uploading the image, maximum load file size allowed: ' . ini_get('upload_max_filesize')
);
}
// Move from PHP tmp file to Bludit tmp directory
Filesystem::mv($_FILES['image']['tmp_name'], PATH_TMP . $_FILES['image']['name']);
// Transform image and create thumbnails
$image = transformImage(PATH_TMP . $_FILES['image']['name'], $imageDirectory, $thumbnailDirectory);
if ($image) {
$filename = Filesystem::filename($image);
return array(
'status' => '0',
'message' => 'Image uploaded.',
'image' => $imageEndpoint . $filename,
'thumbnail' => $thumbnailEndpoint . $filename
);
}
return array(
'status' => '1',
'message' => 'Image extension not allowed.'
);
}
/*
| Get the settings
|
| @args array
|
| @return array
*/
private function getSettings()
{
global $site;
return array(
'status' => '0',
'message' => 'Settings.',
'data' => $site->get()
);
}
/*
| Edit the settings
| You can edit any field defined in the class site.class.php variable $dbFields
|
| @args array
|
| @return array
*/
private function editSettings($args)
{
if (editSettings($args)) {
return array(
'status' => '0',
'message' => 'Settings edited.'
);
}
return array(
'status' => '1',
'message' => 'Error trying to edit the settings.'
);
}
/*
| Returns the categories in the system
| Included the category name, key, description and the list of pages
| The list of pages are the page's key
|
| @return array
*/
private function getCategories()
{
global $categories;
$tmp = array(
'status' => '0',
'message' => 'List of categories.',
'data' => array()
);
foreach ($categories->keys() as $key) {
$category = $categories->getMap($key);
array_push($tmp['data'], $category);
}
return $tmp;
}
/*
| Returns information about the category and pages related
| The pages are expanded which mean the title, content and more fields are returned in the query
| This can degrade the performance
|
| @key string Category key
|
| @return array
*/
private function getCategory($key)
{
try {
$category = new Category($key);
} catch (Exception $e) {
return array(
'status' => '1',
'message' => 'Category not found by the key: ' . $key
);
}
$list = array();
foreach ($category->pages() as $pageKey) {
try {
$page = new Page($pageKey);
array_push($list, $page->json($returnsArray = true));
} catch (Exception $e) {
}
}
$data = $category->json($returnsArray = true);
$data['pages'] = $list;
return array(
'status' => '0',
'message' => 'Information about the category and pages related.',
'data' => $data
);
}
/*
| Returns the user profile
|
| @username string Username
|
| @return array
*/
private function getUser($username)
{
try {
$user = new User($username);
} catch (Exception $e) {
return array(
'status' => '1',
'message' => 'User not found by username: ' . $username
);
}
$data = $user->json($returnsArray = true);
return array(
'status' => '0',
'message' => 'User profile.',
'data' => $data
);
}
/*
| Returns all the users
|
| @return array
*/
private function getUsers()
{
global $users;
$data = array();
foreach ($users->db as $username => $profile) {
try {
$user = new User($username);
$data[$username] = $user->json($returnsArray = true);
} catch (Exception $e) {
continue;
}
}
return array(
'status' => '0',
'message' => 'Users profiles.',
'data' => $data
);
}
/*
| Returns all files uploaded for a specific page, includes any type of file.
|
| @return array
*/
private function getFiles($pageKey)
{
$chunk = false;
$sortByDate = true;
$path = PATH_UPLOADS_PAGES . $pageKey . DS;
$listFiles = Filesystem::listFiles($path, '*', '*', $sortByDate, $chunk);
$files = array();
foreach ($listFiles as $file) {
$info = array('thumbnail' => '');
$info['file'] = $file;
$info['filename'] = basename($file);
$info['mime'] = Filesystem::mimeType($file);
$info['size'] = Filesystem::getSize($file);
// Check if thumbnail exists for the file
$thumbnail = $path . 'thumbnails' . DS . $info['filename'];
if (Filesystem::fileExists($thumbnail)) {
$info['thumbnail'] = $thumbnail;
}
array_push($files, $info);
}
return array(
'status' => '0',
'message' => 'Files for the page key: ' . $pageKey,
'data' => $files
);
}
/*
| Upload a file to a particular page
| Returns the file URL
|
| @inputs array
| @inputs['uuid'] string Page UUID
| @_FILE array https://www.php.net/manual/en/reserved.variables.files.php
|
| @return array
*/
private function uploadFile($pageKey)
{
if (!isset($_FILES['file'])) {
return array(
'status' => '1',
'message' => 'File not sent.'
);
}
if ($_FILES['file']['error'] != 0) {
return array(
'status' => '1',
'message' => 'Error uploading the file.'
);
}
$filename = $_FILES['file']['name'];
$absoluteURL = DOMAIN_UPLOADS_PAGES . $pageKey . DS . $filename;
$absolutePath = PATH_UPLOADS_PAGES . $pageKey . DS . $filename;
if (Filesystem::mv($_FILES['file']['tmp_name'], $absolutePath)) {
return array(
'status' => '0',
'message' => 'File uploaded.',
'filename' => $filename,
'absolutePath' => $absolutePath,
'absoluteURL' => $absoluteURL
);
}
return array(
'status' => '1',
'message' => 'Error moving the file to the final path.'
);
}
}