95 lines
3.4 KiB
PHP
95 lines
3.4 KiB
PHP
<?php declare(strict_types=1);
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require_once "events/displaying_image_event.php";
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require_once "events/image_info_box_building_event.php";
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require_once "events/image_info_set_event.php";
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require_once "events/image_admin_block_building_event.php";
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class ViewImage extends Extension
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{
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/** @var ViewImageTheme */
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protected $theme;
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public function onPageRequest(PageRequestEvent $event)
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{
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global $page, $user;
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if ($event->page_matches("post/prev") || $event->page_matches("post/next")) {
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$image_id = int_escape($event->get_arg(0));
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if (isset($_GET['search'])) {
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$search_terms = Tag::explode(Tag::decaret($_GET['search']));
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$query = "#search=".url_escape($_GET['search']);
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} else {
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$search_terms = [];
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$query = null;
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}
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$image = Image::by_id($image_id);
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if (is_null($image)) {
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$this->theme->display_error(404, "Image not found", "Image $image_id could not be found");
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return;
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}
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if ($event->page_matches("post/next")) {
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$image = $image->get_next($search_terms);
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} else {
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$image = $image->get_prev($search_terms);
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}
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if (is_null($image)) {
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$this->theme->display_error(404, "Image not found", "No more images");
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return;
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}
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$page->set_mode(PageMode::REDIRECT);
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$page->set_redirect(make_link("post/view/{$image->id}", $query));
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} elseif ($event->page_matches("post/view")) {
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if (!is_numeric($event->get_arg(0))) {
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// For some reason there exists some very broken mobile client
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// who follows up every request to '/post/view/123' with
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// '/post/view/12300000000000Image 123: tags' which spams the
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// database log with 'integer out of range'
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$this->theme->display_error(404, "Image not found", "Invalid image ID");
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return;
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}
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$image_id = int_escape($event->get_arg(0));
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$image = Image::by_id($image_id);
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if (!is_null($image)) {
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send_event(new DisplayingImageEvent($image));
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$iabbe = new ImageAdminBlockBuildingEvent($image, $user);
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send_event($iabbe);
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ksort($iabbe->parts);
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$this->theme->display_admin_block($page, $iabbe->parts);
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} else {
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$this->theme->display_error(404, "Image not found", "No image in the database has the ID #$image_id");
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}
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} elseif ($event->page_matches("post/set")) {
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if (!isset($_POST['image_id'])) {
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return;
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}
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$image_id = int_escape($_POST['image_id']);
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send_event(new ImageInfoSetEvent(Image::by_id($image_id)));
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$page->set_mode(PageMode::REDIRECT);
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$page->set_redirect(make_link("post/view/$image_id", url_escape(@$_POST['query'])));
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}
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}
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public function onDisplayingImage(DisplayingImageEvent $event)
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{
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global $user;
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$iibbe = new ImageInfoBoxBuildingEvent($event->get_image(), $user);
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send_event($iibbe);
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ksort($iibbe->parts);
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$this->theme->display_meta_headers($event->get_image());
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$this->theme->display_page($event->get_image(), $iibbe->parts);
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}
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}
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