439 lines
13 KiB
PHP
439 lines
13 KiB
PHP
<?php
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/*
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* Name: Image Ratings
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* Author: Shish <webmaster@shishnet.org>
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* Link: http://code.shishnet.org/shimmie2/
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* License: GPLv2
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* Description: Allow users to rate images "safe", "questionable" or "explicit"
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* Documentation:
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* This shimmie extension provides filter:
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* <ul>
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* <li>rating = (safe|questionable|explicit|unknown)
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* <ul>
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* <li>rating=s -- safe images
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* <li>rating=q -- questionable images
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* <li>rating=e -- explicit images
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* <li>rating=u -- Unknown rating
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* <li>rating=sq -- safe and questionable images
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* </ul>
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* </ul>
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*/
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/**
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* @global Rating[] $_shm_ratings
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*/
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global $_shm_ratings;
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$_shm_ratings = [];
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class Rating {
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/**
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* @var string
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*/
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public $name = null;
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/**
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* @var string
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*/
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public $code = null;
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/**
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* @var string
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*/
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public $search_term = null;
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/**
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* @var int
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*/
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public $order = 0;
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public function __construct( string $code, string $name, string $search_term, int $order)
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{
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global $_shm_ratings;
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if(strlen($code)!=1) {
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throw new Exception("Rating code must be exactly one character");
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}
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if($search_term[0]!=$code) {
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throw new Exception("Code must be the same as the first letter of search_term");
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}
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$this->name = $name;
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$this->code = $code;
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$this->search_term = $search_term;
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$this->order = $order;
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if($code=="u"&&array_key_exists("u",$_shm_ratings)) {
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throw new Exception("u is a reserved rating code that cnanot be overridden");
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}
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$_shm_ratings[$code] = $this;
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}
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}
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new Rating("s", "Safe", "safe", 0);
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new Rating("q", "Questionable", "questionable", 500);
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new Rating("e", "Explicit", "explicit", 1000);
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new Rating("u", "Unrated", "unrated", 99999);
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@include_once "data/config/ratings.conf.php";
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class RatingSetEvent extends Event
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{
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/** @var Image */
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public $image;
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/** @var string */
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public $rating;
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public function __construct(Image $image, string $rating)
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{
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global $_shm_ratings;
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assert(in_array($rating, array_keys($_shm_ratings)));
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$this->image = $image;
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$this->rating = $rating;
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}
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}
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class Ratings extends Extension
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{
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protected $db_support = ['mysql','pgsql'];
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private $search_regexp;
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public function __construct() {
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parent::__construct();
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global $_shm_ratings;
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$codes = implode("",array_keys($_shm_ratings));
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$search_terms = [];
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foreach($_shm_ratings as $key=>$rating) {
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array_push($search_terms, $rating->search_term);
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}
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$this->search_regexp = "/^rating[=|:](?:([".$codes."]+)|(".
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implode("|", $search_terms)."|unknown))$/D";
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}
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public function get_priority(): int
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{
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return 50;
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}
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public function onInitExt(InitExtEvent $event)
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{
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global $config, $_shm_user_classes, $_shm_ratings;
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if ($config->get_int("ext_ratings2_version") < 4) {
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$this->install();
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}
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foreach(array_keys($_shm_user_classes) as $key){
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if($key=="base"||$key=="hellbanned") {
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continue;
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}
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$config->set_default_array("ext_rating_".$key."_privs", array_keys($_shm_ratings));
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}
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}
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public function onSetupBuilding(SetupBuildingEvent $event)
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{
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global $config, $_shm_user_classes, $_shm_ratings;
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$ratings = array_values($_shm_ratings);
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usort($ratings, function($a, $b) {
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return $a->order <=> $b->order;
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});
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$options = [];
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foreach($ratings as $key => $rating) {
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$options[$rating->name] = $rating->code;
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}
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$sb = new SetupBlock("Image Ratings");
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foreach(array_keys($_shm_user_classes) as $key){
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if($key=="base"||$key=="hellbanned") {
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continue;
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}
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$sb->add_multichoice_option("ext_rating_".$key."_privs", $options, "<br/>".$key.": ");
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}
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$event->panel->add_block($sb);
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}
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// public function onPostListBuilding(PostListBuildingEvent $event)
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// {
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// global $user;
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// if ($user->is_admin() && !empty($event->search_terms)) {
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// $this->theme->display_bulk_rater(Tag::implode($event->search_terms));
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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, $page;
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/**
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* Deny images upon insufficient permissions.
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**/
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$user_view_level = Ratings::get_user_privs($user);
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if (!in_array($event->image->rating, $user_view_level)) {
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$page->set_mode("redirect");
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$page->set_redirect(make_link("post/list"));
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}
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}
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public function onRatingSet(RatingSetEvent $event)
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{
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if (empty($event->image->rating)) {
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$old_rating = "";
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} else {
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$old_rating = $event->image->rating;
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}
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$this->set_rating($event->image->id, $event->rating, $old_rating);
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}
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public function onImageInfoBoxBuilding(ImageInfoBoxBuildingEvent $event)
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{
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$event->add_part($this->theme->get_rater_html($event->image->id, $event->image->rating, $this->can_rate()), 80);
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}
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public function onImageInfoSet(ImageInfoSetEvent $event)
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{
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if ($this->can_rate() && isset($_POST["rating"])) {
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$rating = $_POST["rating"];
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if (Ratings::rating_is_valid($rating)) {
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send_event(new RatingSetEvent($event->image, $rating));
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}
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}
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}
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public function onParseLinkTemplate(ParseLinkTemplateEvent $event)
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{
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$event->replace('$rating', $this->rating_to_human($event->image->rating));
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}
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public function onSearchTermParse(SearchTermParseEvent $event)
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{
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global $user, $_shm_ratings;
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$matches = [];
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if (is_null($event->term) && $this->no_rating_query($event->context)) {
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$set = Ratings::privs_to_sql(Ratings::get_user_privs($user));
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$event->add_querylet(new Querylet("rating IN ($set)"));
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}
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if (preg_match($this->search_regexp, strtolower($event->term), $matches)) {
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$ratings = $matches[1] ? $matches[1] : $matches[2][0];
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$ratings = array_intersect(str_split($ratings), Ratings::get_user_privs($user));
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$set = "'" . join("', '", $ratings) . "'";
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$event->add_querylet(new Querylet("rating IN ($set)"));
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}
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}
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public function onTagTermParse(TagTermParseEvent $event)
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{
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$matches = [];
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if (preg_match($this->search_regexp, strtolower($event->term), $matches) && $event->parse) {
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$ratings = $matches[1] ? $matches[1] : $matches[2][0];
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$ratings = array_intersect(str_split($ratings), Ratings::get_user_privs($user));
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$rating = $ratings[0];
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$image = Image::by_id($event->id);
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$re = new RatingSetEvent($image, $rating);
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send_event($re);
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}
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if (!empty($matches)) {
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$event->metatag = true;
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}
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}
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public function onBulkActionBlockBuilding(BulkActionBlockBuildingEvent $event)
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{
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global $user;
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if ($user->can("bulk_edit_image_rating")) {
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$event->add_action("bulk_rate","Set Rating","",$this->theme->get_selection_rater_html("bulk_rating"));
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}
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}
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public function onBulkAction(BulkActionEvent $event)
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{
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global $user;
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switch ($event->action) {
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case "bulk_rate":
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if (!isset($_POST['bulk_rating'])) {
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return;
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}
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if ($user->can("bulk_edit_image_rating")) {
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$rating = $_POST['bulk_rating'];
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$total = 0;
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foreach ($event->items as $id) {
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$image = Image::by_id($id);
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if ($image==null) {
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continue;
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}
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send_event(new RatingSetEvent($image, $rating));
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$total++;
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}
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flash_message("Rating set for $total items");
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}
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break;
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}
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}
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public function onPageRequest(PageRequestEvent $event)
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{
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global $user, $page;
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if ($event->page_matches("admin/bulk_rate")) {
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if (!$user->can("bulk_edit_image_rating")) {
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throw new PermissionDeniedException();
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} else {
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$n = 0;
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while (true) {
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$images = Image::find_images($n, 100, Tag::explode($_POST["query"]));
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if (count($images) == 0) {
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break;
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}
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reset($images); // rewind to first element in array.
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foreach ($images as $image) {
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send_event(new RatingSetEvent($image, $_POST['rating']));
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}
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$n += 100;
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}
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#$database->execute("
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# update images set rating=? where images.id in (
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# select image_id from image_tags join tags
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# on image_tags.tag_id = tags.id where tags.tag = ?);
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# ", array($_POST["rating"], $_POST["tag"]));
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$page->set_mode("redirect");
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$page->set_redirect(make_link("post/list"));
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}
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}
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}
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public static function get_user_privs(User $user): array
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{
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global $config, $_shm_ratings;
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return $config->get_array("ext_rating_".$user->class->name."_privs");
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}
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public static function privs_to_sql(array $sqes): string
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{
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$arr = [];
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foreach($sqes as $i) {
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$arr[] = "'" . $i . "'";
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}
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if(sizeof($arr)==0) {
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return "' '";
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}
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$set = join(', ', $arr);
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return $set;
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}
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public static function rating_to_human(string $rating): string
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{
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global $_shm_ratings;
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if(array_key_exists($rating, $_shm_ratings)) {
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return $_shm_ratings[$rating]->name;
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}
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return "Unknown";
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}
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public static function rating_is_valid(string $rating): bool
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{
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global $_shm_ratings;
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return in_array($rating, array_keys($_shm_ratings));
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}
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/**
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* FIXME: this is a bit ugly and guessey, should have proper options
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*/
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private function can_rate(): bool
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{
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global $config, $user;
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if ($user->can("edit_image_rating")) {
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return true;
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}
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return false;
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}
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/**
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* #param string[] $context
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*/
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private function no_rating_query(array $context): bool
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{
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foreach ($context as $term) {
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if (preg_match("/^rating[=|:]/", $term)) {
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return false;
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}
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}
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return true;
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}
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private function install()
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{
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global $database, $config;
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if ($config->get_int("ext_ratings2_version") < 1) {
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$database->Execute("ALTER TABLE images ADD COLUMN rating CHAR(1) NOT NULL DEFAULT 'u'");
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$database->Execute("CREATE INDEX images__rating ON images(rating)");
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$config->set_int("ext_ratings2_version", 3);
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}
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if ($config->get_int("ext_ratings2_version") < 2) {
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$database->Execute("CREATE INDEX images__rating ON images(rating)");
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$config->set_int("ext_ratings2_version", 2);
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}
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if($config->get_int("ext_ratings2_version") < 3) {
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$database->Execute("UPDATE images SET rating = 'u' WHERE rating is null");
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switch ($database->get_driver_name()) {
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case "mysql":
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$database->Execute("ALTER TABLE images CHANGE rating rating CHAR(1) NOT NULL DEFAULT 'u'");
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break;
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case "pgsql":
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$database->Execute("ALTER TABLE images ALTER COLUMN rating SET DEFAULT 'u'");
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$database->Execute("ALTER TABLE images ALTER COLUMN rating SET NOT NULL");
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break;
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}
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$config->set_int("ext_ratings2_version", 3);
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}
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if ($config->get_int("ext_ratings2_version") < 4) {
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$value = $config->get_string("ext_rating_anon_privs");
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$config->set_array("ext_rating_anonymous_privs", str_split($value));
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$value = $config->get_string("ext_rating_user_privs");
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$config->set_array("ext_rating_user_privs", str_split($value));
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$value = $config->get_string("ext_rating_admin_privs");
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$config->set_array("ext_rating_admin_privs", str_split($value));
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$config->set_int("ext_ratings2_version", 4);
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}
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}
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private function set_rating(int $image_id, string $rating, string $old_rating)
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{
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global $database;
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if ($old_rating != $rating) {
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$database->Execute("UPDATE images SET rating=? WHERE id=?", [$rating, $image_id]);
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log_info("rating", "Rating for Image #{$image_id} set to: ".$this->rating_to_human($rating));
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}
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}
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}
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