318 lines
10 KiB
PHP
318 lines
10 KiB
PHP
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<?php
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/**
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* Class: AjaxController
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* The logic controlling AJAX requests.
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*/
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class AjaxController extends Controllers implements Controller {
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# String: $base
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# The base path for this controller.
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public $base = "ajax";
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# Boolean: $clean
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# Does this controller support clean URLs?
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public $clean_urls = false;
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# Boolean: $feed
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# Serve a syndication feed?
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public $feed = false;
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/**
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* Function: parse
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* Route constructor calls this to determine the action in the case of a POST request.
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*/
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public function parse($route): ?string {
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if (
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isset($_SERVER['HTTP_SEC_FETCH_SITE']) and
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$_SERVER['HTTP_SEC_FETCH_SITE'] != "same-origin"
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) {
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show_403();
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}
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if (empty($route->action) and isset($_POST['action']))
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return $route->action = $_POST['action'];
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if (!isset($route->action))
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error(
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__("Error"),
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__("Missing argument."),
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code:400
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);
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return null;
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}
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/**
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* Function: exempt
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* Route constructor calls this to determine "view_site" exemptions.
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*/
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public function exempt($action): bool {
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return false;
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}
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/**
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* Function: ajax_destroy_post
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* Destroys a post.
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*/
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public function ajax_destroy_post(): void {
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if (!isset($_POST['hash']) or !Session::check_token($_POST['hash']))
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show_403(
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__("Access Denied"),
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__("Invalid authentication token.")
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);
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if (empty($_POST['id']) or !is_numeric($_POST['id']))
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error(
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__("No ID Specified"),
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__("An ID is required to delete a post."),
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code:400
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);
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$post = new Post(
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$_POST['id'], array("drafts" => true)
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);
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if ($post->no_results)
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show_404(
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__("Not Found"),
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__("Post not found.")
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);
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if (!$post->deletable())
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show_403(
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__("Access Denied"),
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__("You do not have sufficient privileges to delete this post.")
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);
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Post::delete($post->id);
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json_response(__("Post deleted."), true);
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}
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/**
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* Function: ajax_destroy_page
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* Destroys a page.
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*/
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public function ajax_destroy_page(): void {
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if (!Visitor::current()->group->can("delete_page"))
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show_403(
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__("Access Denied"),
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__("You do not have sufficient privileges to delete pages.")
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);
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if (!isset($_POST['hash']) or !Session::check_token($_POST['hash']))
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show_403(
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__("Access Denied"),
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__("Invalid authentication token.")
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);
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if (empty($_POST['id']) or !is_numeric($_POST['id']))
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error(
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__("No ID Specified"),
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__("An ID is required to delete a page."),
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code:400
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);
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$page = new Page($_POST['id']);
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if ($page->no_results)
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show_404(
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__("Not Found"),
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__("Page not found.")
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);
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Page::delete($page->id, true);
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json_response(__("Page deleted."), true);
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}
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/**
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* Function: ajax_preview_post
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* Previews a post.
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*/
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public function ajax_preview_post(): void {
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if (!isset($_POST['hash']) or !Session::check_token($_POST['hash']))
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show_403(
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__("Access Denied"),
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__("Invalid authentication token.")
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);
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if (!Visitor::current()->group->can("add_post", "add_draft"))
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show_403(
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__("Access Denied"),
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__("You do not have sufficient privileges to add posts.")
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);
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$trigger = Trigger::current();
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$main = MainController::current();
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$class = camelize(fallback($_POST['safename'], "text"));
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$field = fallback($_POST['field'], "body");
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$content = fallback($_POST['content'], "");
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# Custom filters.
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if (isset(Feathers::$custom_filters[$class])) {
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foreach (Feathers::$custom_filters[$class] as $custom_filter) {
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if ($custom_filter["field"] == $field)
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$content = call_user_func_array(
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array(
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Feathers::$instances[$_POST['safename']],
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$custom_filter["name"]
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),
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array($content)
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);
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}
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}
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# Trigger filters.
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if (isset(Feathers::$filters[$class])) {
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foreach (Feathers::$filters[$class] as $filter) {
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if ($filter["field"] == $field and !empty($content))
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$trigger->filter($content, $filter["name"]);
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}
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}
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header("Cache-Control: no-cache, must-revalidate");
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header("Expires: Mon, 03 Jun 1991 05:30:00 GMT");
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$main->display(
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"content".DIR."preview",
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array("content" => $content),
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__("Preview")
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);
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}
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/**
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* Function: ajax_preview_page
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* Previews a page.
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*/
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public function ajax_preview_page(): void {
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if (!isset($_POST['hash']) or !Session::check_token($_POST['hash']))
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show_403(
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__("Access Denied"),
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__("Invalid authentication token.")
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);
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if (!Visitor::current()->group->can("add_page"))
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show_403(
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__("Access Denied"),
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__("You do not have sufficient privileges to add pages.")
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);
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$trigger = Trigger::current();
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$main = MainController::current();
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$field = fallback($_POST['field'], "body");
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$content = fallback($_POST['content'], "");
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# Page title filters.
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if ($field == "title")
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$trigger->filter($content, array("markup_page_title", "markup_title"));
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# Page body filters.
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if ($field == "body")
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$trigger->filter($content, array("markup_page_text", "markup_text"));
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header("Cache-Control: no-cache, must-revalidate");
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header("Expires: Mon, 03 Jun 1991 05:30:00 GMT");
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$main->display(
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"content".DIR."preview",
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array("content" => $content),
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__("Preview")
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);
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}
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/**
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* Function: ajax_file_upload
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* Moves a file to the uploads directory.
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*/
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public function ajax_file_upload(): void {
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if (!isset($_POST['hash']) or !Session::check_token($_POST['hash']))
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show_403(
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__("Access Denied"),
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__("Invalid authentication token.")
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);
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if (
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!Visitor::current()->group->can(
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"add_post",
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"edit_post",
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"add_draft",
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"edit_draft",
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"edit_own_post",
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"edit_own_draft",
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"add_page",
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"edit_page"
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)
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)
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show_403(
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__("Access Denied"),
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__("You do not have sufficient privileges to upload files.")
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);
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if (!isset($_FILES['file']))
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error(
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__("Error"),
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__("Missing argument."),
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code:400
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);
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if (upload_tester($_FILES['file'])) {
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$filename = upload($_FILES['file']);
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$url = Config::current()->chyrp_url.
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"/includes/thumbnail.php?file=".urlencode($filename);
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$data = array("file" => $filename, "url" => $url);
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json_response(__("File uploaded."), $data);
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}
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}
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public function ajax_uploads_modal(): void {
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if (!isset($_POST['hash']) or !Session::check_token($_POST['hash']))
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show_403(
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__("Access Denied"),
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__("Invalid authentication token.")
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);
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if (!Visitor::current()->group->can("edit_post", "edit_page", true))
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show_403(
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__("Access Denied"),
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__("You do not have sufficient privileges to manage uploads.")
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);
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$search = fallback($_POST['search'], "");
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$filter = fallback($_POST['filter'], "");
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$sort = fallback($_SESSION['uploads_sort'], "name");
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$extensions = array();
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$exploded = explode(",", $filter);
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foreach ($exploded as $value) {
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$value = trim($value, " .");
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if ($value != "")
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$extensions[] = $value;
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}
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$uploads = uploaded_search(
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search:$search,
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filter:$extensions,
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sort:$sort
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);
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$admin = AdminController::current();
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$admin->display(
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"partials".DIR."uploads_modal",
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array("uploads" => $uploads)
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);
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}
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/**
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* Function: current
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* Returns a singleton reference to the current class.
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*/
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public static function & current(): self {
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static $instance = null;
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$instance = (empty($instance)) ? new self() : $instance ;
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return $instance;
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}
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}
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