mirror of
https://github.com/pierre42100/ComunicAPI
synced 2024-11-23 22:09:29 +00:00
480 lines
13 KiB
PHP
480 lines
13 KiB
PHP
<?php
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/**
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* Restserver controller
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*
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* Posts controller
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*
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* @author Pierre HUBERT
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*/
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class postsController {
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/**
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* Visibility levels for the API
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*/
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const VISIBILITY_LEVELS_API = array(
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Posts::VISIBILITY_PUBLIC => "public",
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Posts::VISIBILITY_FRIENDS => "friends",
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Posts::VISIBILITY_USER => "private"
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);
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/**
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* Access levels for the POST for the api
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*/
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const ACCESS_LEVEL_API = array(
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Posts::NO_ACCESS => "no-access",
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Posts::BASIC_ACCESS => "basic",
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Posts::INTERMEDIATE_ACCESS => "intermediate",
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Posts::FULL_ACCESS => "full"
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);
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/**
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* Get user posts
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*
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* @url POST /posts/get_user
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*/
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public function getUserPosts(){
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//Get user ID
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$userID = getPostUserID("userID");
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//Check if user is allowed to access informations or not
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if(!CS::get()->components->user->userAllowed(userID, $userID))
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Rest_fatal_error(401, "You are not allowed to access this user posts !");
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//Check if there is a startpoint for the posts
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if(isset($_POST['startFrom'])){
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$startFrom = toInt($_POST['startFrom']);
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}
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else
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$startFrom = 0; //No start point
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//Get the post of the user
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$posts = CS::get()->components->posts->getUserPosts(userID, $userID, $startFrom);
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//Process the list of posts
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foreach($posts as $num => $infos){
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//Parse post informations
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$posts[$num] = $this->parsePostForAPI($infos);
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}
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return $posts;
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}
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/**
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* Get informations about a single post
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*
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* @url POST /posts/get_single
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*/
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public function get_single_post(){
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//Get the post ID
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$postID = getPostPostIDWithAccess("postID");
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//Get informations about the post
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$postInfos = components()->posts->get_single($postID, false);
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//Check for errors
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if(count($postInfos) == 0)
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Rest_fatal_error(500, "Couldn't retrieve post informations !");
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//Check if we can get the comments of the post
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if(components()->user->allowComments($postInfos['user_page_id']))
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$postInfos['comments'] = components()->comments->get($postInfos["ID"]);
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//Parse post informations
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$postInfos = $this->parsePostForAPI($postInfos);
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//Return informations about the post
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return $postInfos;
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}
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/**
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* Create a post
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*
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* @url POST /posts/create
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*/
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public function createPost(){
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user_login_required(); //Need login
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//Get the kind of page
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if(!isset($_POST['kind-page']) || !isset($_POST['kind-id']))
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Rest_fatal_error(400, "Please specify the kind of target page and its ID !");
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//Make the kind of page match with one of those locally stored
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switch($_POST['kind-page']){
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//In case of user
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case "user":
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//Get the values
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$kind_page = Posts::PAGE_KIND_USER;
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$kind_page_id = getPostUserID('kind-id');
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//Check if user is allowed to create post on user page
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if(!CS::get()->components->user->canCreatePosts(userID, $kind_page_id))
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Rest_fatal_error(401, "You are not allowed to create post on this page !");
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break;
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//Unsupported kind of page
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default:
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Rest_fatal_error(500, "Unsupported kind of page !");
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}
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//Get the kind of post
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if(!isset($_POST['kind']))
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Rest_fatal_error(400, "Please specify the kind of post !");
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$kind = $_POST['kind'];
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//Get the content of the post
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$content = getPostContent("content");
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//Get the visibility of the post
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$visibility = $this->getPostVisibilityLevel("visibility");
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//Act differently depending of the post content
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//For text post
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if($kind === Posts::POST_KIND_TEXT){
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//The post content must be valid
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if(!check_string_before_insert($content))
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Rest_fatal_error(400, "Specified post content invalid !");
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}
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//For image posts
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else if($kind === Posts::POST_KIND_IMAGE){
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//Check if it is a valid file
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if(!check_post_file("image"))
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Rest_fatal_error(400, "An error occured while receiving image !");
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//Save post image
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$file_path = save_post_image("image", userID, "imgpost", 2000, 2000);
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//Save image information
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$file_sys_path = path_user_data($file_path, true);
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$file_type = mime_content_type($file_sys_path);
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$file_size = filesize($file_sys_path);
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}
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//For YouTube posts
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else if($kind === Posts::POST_KIND_YOUTUBE){
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//Check if Youtube ID was specified
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if(!isset($_POST['youtube_id']))
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Rest_fatal_error(400, "Please specify the Youtube video ID in your request !");
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$youtube_id = $_POST['youtube_id'];
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//Check the video ID
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if(!check_youtube_id($youtube_id))
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Rest_fatal_error(400, "Specified YouTube video ID is invalid !");
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//Save video informations
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$file_path = $youtube_id;
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}
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//For personnal movies posts
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else if($kind === Posts::POST_KIND_MOVIE){
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//Get movie ID
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$movieID = getPostMovieID("movieID");
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//Check if the current user is the owner the movie or not
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if(userID != CS::get()->components->movies->get_owner($movieID))
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Rest_fatal_error(400, "You are not allowed to use this movie in your posts !");
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//Save movie informations
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$video_id = $movieID;
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}
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//For weblinks
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else if($kind === Posts::POST_KIND_WEBLINK){
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//Check if we have a valid url
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if(!check_post_url("url"))
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Rest_fatal_error(400, "Invalid URL specified with request !");
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$url = $_POST['url'];
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//Get informations about the webpage
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$page_infos = URLAnalyzer::analyze($url, 15);
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//Save URL informations
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$link_url = $url;
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$link_title = isset($page_infos["title"]) ? $page_infos["title"] : null;
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$link_description = isset($page_infos["description"]) ? $page_infos["description"] : null;
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$link_image = isset($page_infos["image"]) ? $page_infos["image"] : null;
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}
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//For PDFs
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else if($kind === Posts::POST_KIND_PDF){
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//Check if it is a valid file
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if(!check_post_file("pdf"))
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Rest_fatal_error(400, "An error occured while receiving pdf !");
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//Check file type
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if($_FILES['pdf']['type'] != "application/pdf")
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Rest_fatal_error(400, "The file sent is not a PDF !");
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//Generate target file name
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$target_userdata_folder = prepareFileCreation(userID, "post_pdf");
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$target_file_path = $target_userdata_folder.generateNewFileName(path_user_data($target_userdata_folder, true), "pdf");
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$target_file_sys_path = path_user_data($target_file_path, true);
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//Try to move the file to its final location
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if(!move_uploaded_file($_FILES["pdf"]["tmp_name"], $target_file_sys_path))
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Rest_fatal_error(500, "Could save the PDF !");
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//Save pdf information
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$file_type = "application/pdf";
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$file_size = filesize($target_file_sys_path);
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$file_path = $target_file_path;
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}
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//For countdown timer
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else if($kind === Posts::POST_KIND_COUNTDOWN){
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//Get end timestamp
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$time_end = getPostTimeStamp("time-end");
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}
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//For survey
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else if($kind === Posts::POST_KIND_SURVEY){
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//Process the question
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if(!isset($_POST['question']))
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Rest_fatal_error(400, "Please specify the question of the survey !");
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$question = $_POST['question'];
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//Check the length of the question
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if(strlen($question) < 5)
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Rest_fatal_error(400, "Please specify a valid question for the survey !");
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//Process the answers
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if(!isset($_POST['answers']))
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Rest_fatal_error(400, "Please specify the ansers of the survey !");
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$str_answers = $_POST["answers"];
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//Process the ansers
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$answers = explode("<>", $str_answers);
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//Remove empty questions and make other secure to insert
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foreach($answers as $num=>$val){
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if($val == "" || $val == " ")
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unset($answers[$num]);
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else
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$answers[$num] = removeHTMLnodes($val);
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}
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//Check the minimum number of question is valid
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if(count($answers) < 2)
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Rest_fatal_error(400, "Please specify at least two valid answers for the survey !");
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//Save informations about the survey
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$survey_question = removeHTMLnodes($question);
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$survey_answers = $answers;
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}
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//The content type is not supported
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else {
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Rest_fatal_error(500, "This kind of post is not supported !");
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}
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//Create the post
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$postID = CS::get()->components->posts->create(
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//Informations about the kind of page
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$kind_page,
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$kind_page_id,
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//Generic informations about the post
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userID,
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$content,
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$visibility,
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$kind,
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//Specific informations about the post
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//Posts with files
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isset($file_size) ? $file_size : 0,
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isset($file_type) ? $file_type : null,
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isset($file_path) ? $file_path : null,
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//For video post
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isset($video_id) ? $video_id : 0,
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//For countdown post
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isset($time_end) ? $time_end : 0,
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//For weblink posts
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isset($link_url) ? $link_url : null,
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isset($link_title) ? $link_title : null,
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isset($link_description) ? $link_description : null,
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isset($link_image) ? $link_image : null,
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//For survey posts
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isset($survey_question) ? $survey_question : null,
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isset($survey_answers) ? $survey_answers : array()
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);
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//Check for errors
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if($postID < 0)
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Rest_fatal_error(400, "Couldn't create post !");
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//Success
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return array(
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"success" => "The post has been created !",
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"postID" => $postID
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);
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}
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/**
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* Change the visibility level of a post
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*
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* @url POST /posts/set_visibility_level
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*/
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public function set_visibility_level(){
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user_login_required();
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//Get the post ID
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$postID = $this->getFullAccessPostID("postID");
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//Get the visibility level
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$new_visibility = $this->getPostVisibilityLevel("new_level");
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//Try to update visibility level
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if(!CS::get()->components->posts->update_level($postID, $new_visibility))
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Rest_fatal_error(500, "Couldn't update visibility level !");
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//Success
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return array("success" => "The visibility level has been updated !");
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}
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/**
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* Update the content of a post
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*
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* @url POST /posts/update_content
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*/
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public function update_content(){
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user_login_required();
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//Get the post ID
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$postID = $this->getFullAccessPostID("postID");
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//Get the post content
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$new_content = getPostContent("new_content");
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//Try to update post content
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if(!components()->posts->update_content($postID, $new_content))
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Rest_fatal_error(500, "An error occured while trying to update post content !");
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//Success
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return array("success" => "The post content has been updated !");
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}
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/**
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* Delete post
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*
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* @url POST /posts/delete
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*/
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public function delete_post(){
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user_login_required();
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//Get the post ID
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$postID = getPostPostID("postID");
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//Get the user access over the post
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$user_access = CS::get()->components->posts->access_level($postID, userID);
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//Check if the user is allowed to delete the post or not
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if($user_access != Posts::FULL_ACCESS && $user_access != Posts::INTERMEDIATE_ACCESS)
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Rest_fatal_error(401, "You are not allowed to delete this post !");
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//Delete the post
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if(!CS::get()->components->posts->delete($postID))
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Rest_fatal_error(500, "Couldn't delete post!");
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//Success
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return array("success" => "The post has been deleted!");
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}
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/**
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* Get the visibility level specified in a POST request
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*
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* @param string $name The name of the POST parameter
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* @return int The visibility level
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*/
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private function getPostVisibilityLevel(string $name) : int {
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if(!isset($_POST[$name]))
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Rest_fatal_error(400, "Please specify the visibility of the post !");
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$api_visibility = $_POST[$name];
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//Get the visibility levels of the API
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$post_visibility = array_flip($this::VISIBILITY_LEVELS_API);
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//Check for the existence of the visibility level
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if(!isset($post_visibility[$api_visibility]))
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Rest_fatal_error(400, "Specified visibility level not recognized !");
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//Return it
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return $post_visibility[$api_visibility];
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}
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/**
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* This function is called to check if the current user has a full access
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* other a post specified by its ID in a post request
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*
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* @param string $name The name of the POST parameter
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* @return int The ID of the POST (an error is thrown if the user can't be
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* authenticated as post owner)
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*/
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private function getFullAccessPostID(string $name) : int {
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user_login_required();
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//Get the post ID
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$postID = getPostPostID($name);
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//Check if the user is allowed to change the visibility level of the post
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if(CS::get()->components->posts->access_level($postID, userID) != Posts::FULL_ACCESS)
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Rest_fatal_error(401, "You do not the full control of this post !");
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//Return post id
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return $postID;
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}
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/**
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* Parse a post to make it ready to be displayed on the API
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*
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* @param array $infos Source informations
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* @return array Post informations ready to be returned
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*/
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private function parsePostForAPI(array $infos) : array {
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//Get access level to the post
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$access_level = CS::get()->components->posts->access_level_with_infos($infos, userID);
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//Save level access in the response
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$infos["user_access"] = $this::ACCESS_LEVEL_API[$access_level];
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//Update visibility level
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$infos['visibility_level'] = $this::VISIBILITY_LEVELS_API[$infos['visibility_level']];
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//Return the post ready to be shown
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return $infos;
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}
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} |