327 lines
12 KiB
PHP
327 lines
12 KiB
PHP
<?php
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/**
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* Name: Image List
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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: Show a list of uploaded images
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* Documentation:
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* Here is a list of the search methods available out of the box;
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* Shimmie extensions may provide other filters:
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* <ul>
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* <li>by tag, eg
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* <ul>
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* <li>cat
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* <li>pie
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* <li>somethi* -- wildcards are supported
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* </ul>
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* <li>size (=, <, >, <=, >=) width x height, eg
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* <ul>
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* <li>size=1024x768 -- a specific wallpaper size
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* <li>size>=500x500 -- no small images
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* <li>size<1000x1000 -- no large images
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* </ul>
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* <li>width (=, <, >, <=, >=) width, eg
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* <ul>
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* <li>width=1024 -- find images with 1024 width
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* <li>width>2000 -- find images bigger than 2000 width
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* </ul>
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* <li>height (=, <, >, <=, >=) height, eg
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* <ul>
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* <li>height=768 -- find images with 768 height
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* <li>height>1000 -- find images bigger than 1000 height
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* </ul>
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* <li>ratio (=, <, >, <=, >=) width : height, eg
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* <ul>
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* <li>ratio=4:3, ratio=16:9 -- standard wallpaper
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* <li>ratio=1:1 -- square images
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* <li>ratio<1:1 -- tall images
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* <li>ratio>1:1 -- wide images
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* </ul>
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* <li>filesize (=, <, >, <=, >=) size, eg
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* <ul>
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* <li>filesize>1024 -- no images under 1KB
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* <li>filesize<=3MB -- shorthand filesizes are supported too
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* </ul>
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* <li>id (=, <, >, <=, >=) number, eg
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* <ul>
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* <li>id<20 -- search only the first few images
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* <li>id>=500 -- search later images
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* </ul>
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* <li>user=Username & poster=Username, eg
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* <ul>
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* <li>user=Shish -- find all of Shish's posts
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* <li>poster=Shish -- same as above
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* </ul>
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* <li>user_id=userID & poster_id=userID, eg
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* <ul>
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* <li>user_id=2 -- find all posts by user id 2
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* <li>poster_id=2 -- same as above
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* </ul>
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* <li>hash=md5sum & md5=md5sum, eg
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* <ul>
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* <li>hash=bf5b59173f16b6937a4021713dbfaa72 -- find the "Taiga want up!" image
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* <li>md5=bf5b59173f16b6937a4021713dbfaa72 -- same as above
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* </ul>
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* <li>filetype=type & ext=type, eg
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* <ul>
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* <li>filetype=png -- find all PNG images
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* <li>ext=png -- same as above
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* </ul>
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* <li>filename=blah & name=blah, eg
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* <ul>
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* <li>filename=kitten -- find all images with "kitten" in the original filename
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* <li>name=kitten -- same as above
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* </ul>
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* <li>posted (=, <, >, <=, >=) date, eg
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* <ul>
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* <li>posted>=2009-12-25 posted<=2010-01-01 -- find images posted between christmas and new year
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* </ul>
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* <li>tags (=, <, >, <=, >=) count, eg
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* <ul>
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* <li>tags=1 -- search for images with only 1 tag
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* <li>tags>=10 -- search for images with 10 or more tags
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* <li>tags<25 -- search for images with less than 25 tags
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* </ul>
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* <li>source=url, eg
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* <ul>
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* <li>source=http://example.com -- find all images with "http://example.com" in the source
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* </ul>
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* </ul>
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* <p>Search items can be combined to search for images which match both,
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* or you can stick "-" in front of an item to search for things that don't
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* match it.
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* <p>Metatags can be followed by ":" rather than "=" if you prefer.
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* <br />I.E: "posted:2014-01-01", "id:>=500" etc.
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* <p>Some search methods provided by extensions:
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* <ul>
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* <li>Numeric Score
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* <ul>
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* <li>score (=, <, >, <=, >=) number -- seach by score
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* <li>upvoted_by=Username -- search for a user's likes
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* <li>downvoted_by=Username -- search for a user's dislikes
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* </ul>
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* <li>Image Rating
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* <ul>
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* <li>rating=se -- find safe and explicit images, ignore questionable and unknown
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* </ul>
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* <li>Favorites
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* <ul>
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* <li>favorites (=, <, >, <=, >=) number -- search for images favourited a certain number of times
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* <li>favourited_by=Username -- search for a user's choices by username
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* <li>favorited_by_userno=UserID -- search for a user's choice by userID
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* </ul>
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* <li>Notes
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* <ul>
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* <li>notes (=, <, >, <=, >=) number -- search by the number of notes an image has
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* <li>notes_by=Username -- search for a notes created by username
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* <li>notes_by_userno=UserID -- search for a notes created by userID
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* </ul>
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* </ul>
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*/
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/*
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* SearchTermParseEvent:
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* Signal that a search term needs parsing
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*/
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class SearchTermParseEvent extends Event {
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var $term = null;
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var $context = null;
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var $querylets = array();
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public function SearchTermParseEvent($term, $context) {
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$this->term = $term;
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$this->context = $context;
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}
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public function is_querylet_set() {
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return (count($this->querylets) > 0);
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}
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public function get_querylets() {
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return $this->querylets;
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}
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public function add_querylet($q) {
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$this->querylets[] = $q;
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}
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}
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class SearchTermParseException extends SCoreException {
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}
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class PostListBuildingEvent extends Event {
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var $search_terms = null;
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var $parts = array();
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public function __construct($search) {
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$this->search_terms = $search;
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}
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public function add_control(/*string*/ $html, /*int*/ $position=50) {
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while(isset($this->parts[$position])) $position++;
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$this->parts[$position] = $html;
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}
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}
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class Index extends Extension {
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var $stpen = 0; // search term parse event number
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public function onInitExt(InitExtEvent $event) {
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global $config;
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$config->set_default_int("index_images", 24);
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$config->set_default_bool("index_tips", true);
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}
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public function onPageRequest(PageRequestEvent $event) {
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global $config, $database, $page, $user;
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if($event->page_matches("post/list")) {
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if(isset($_GET['search'])) {
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$search = url_escape(Tag::implode(Tag::resolve_aliases(Tag::explode($_GET['search'], false))));
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if(empty($search)) {
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$page->set_mode("redirect");
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$page->set_redirect(make_link("post/list/1"));
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}
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else {
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$page->set_mode("redirect");
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$page->set_redirect(make_link('post/list/'.$search.'/1'));
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}
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return;
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}
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$search_terms = $event->get_search_terms();
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$page_number = $event->get_page_number();
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$page_size = $event->get_page_size();
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$count_search_terms = count($search_terms);
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try {
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#log_debug("index", "Search for ".implode(" ", $search_terms), false, array("terms"=>$search_terms));
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$total_pages = Image::count_pages($search_terms);
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if(SPEED_HAX && $count_search_terms === 0 && ($page_number < 10)) { // extra caching for the first few post/list pages
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$images = $database->cache->get("post-list-$page_number");
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if(!$images) {
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$images = Image::find_images(($page_number-1)*$page_size, $page_size, $search_terms);
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$database->cache->set("post-list-$page_number", $images, 600);
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}
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}
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else {
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$images = Image::find_images(($page_number-1)*$page_size, $page_size, $search_terms);
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}
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}
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catch(SearchTermParseException $stpe) {
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// FIXME: display the error somewhere
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$total_pages = 0;
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$images = array();
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}
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$count_images = count($images);
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if($count_search_terms === 0 && $count_images === 0 && $page_number === 1) {
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$this->theme->display_intro($page);
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send_event(new PostListBuildingEvent($search_terms));
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}
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else if($count_search_terms > 0 && $count_images === 1 && $page_number === 1) {
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$page->set_mode("redirect");
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$page->set_redirect(make_link('post/view/'.$images[0]->id));
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}
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else {
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$plbe = new PostListBuildingEvent($search_terms);
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send_event($plbe);
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$this->theme->set_page($page_number, $total_pages, $search_terms);
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$this->theme->display_page($page, $images);
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if(count($plbe->parts) > 0) {
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$this->theme->display_admin_block($plbe->parts);
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}
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}
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}
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}
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public function onSetupBuilding(SetupBuildingEvent $event) {
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$sb = new SetupBlock("Index Options");
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$sb->position = 20;
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$sb->add_label("Show ");
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$sb->add_int_option("index_images");
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$sb->add_label(" images on the post list");
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$event->panel->add_block($sb);
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}
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public function onImageAddition(ImageAdditionEvent $event) {
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global $database;
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if(SPEED_HAX) {
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for($i=1; $i<10; $i++) {
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$database->cache->delete("post-list-$i");
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}
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}
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}
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public function onImageDeletion(ImageDeletionEvent $event) {
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global $database;
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if(SPEED_HAX) {
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for($i=1; $i<10; $i++) {
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$database->cache->delete("post-list-$i");
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}
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}
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}
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public function onSearchTermParse(SearchTermParseEvent $event) {
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$matches = array();
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// check for tags first as tag based searches are more common.
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if(preg_match("/^tags([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)$/", $event->term, $matches)) {
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$cmp = ltrim($matches[1], ":") ?: "=";
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$tags = $matches[2];
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$event->add_querylet(new Querylet('images.id IN (SELECT DISTINCT image_id FROM image_tags GROUP BY image_id HAVING count(image_id) '.$cmp.' '.$tags.')'));
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}
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else if(preg_match("/^ratio([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+):(\d+)$/", $event->term, $matches)) {
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$cmp = preg_replace('/^:/', '=', $matches[1]);
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$args = array("width{$this->stpen}"=>int_escape($matches[2]), "height{$this->stpen}"=>int_escape($matches[3]));
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$event->add_querylet(new Querylet("width / height $cmp :width{$this->stpen} / :height{$this->stpen}", $args));
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}
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else if(preg_match("/^(filesize|id)([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+[kmg]?b?)$/i", $event->term, $matches)) {
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$col = $matches[1];
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$cmp = ltrim($matches[2], ":") ?: "=";
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$val = parse_shorthand_int($matches[3]);
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$event->add_querylet(new Querylet("images.$col $cmp :val{$this->stpen}", array("val{$this->stpen}"=>$val)));
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}
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else if(preg_match("/^(hash|md5)[=|:]([0-9a-fA-F]*)$/i", $event->term, $matches)) {
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$hash = strtolower($matches[2]);
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$event->add_querylet(new Querylet('images.hash = :hash', array("hash" => $hash)));
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}
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else if(preg_match("/^(filetype|ext)[=|:]([a-zA-Z0-9]*)$/i", $event->term, $matches)) {
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$ext = strtolower($matches[2]);
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$event->add_querylet(new Querylet('images.ext = :ext', array("ext" => $ext)));
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}
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else if(preg_match("/^(filename|name)[=|:]([a-zA-Z0-9]*)$/i", $event->term, $matches)) {
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$filename = strtolower($matches[2]);
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$event->add_querylet(new Querylet("images.filename LIKE :filename{$this->stpen}", array("filename{$this->stpen}"=>"%$filename%")));
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}
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else if(preg_match("/^(source)[=|:]([a-zA-Z0-9]*)$/i", $event->term, $matches)) {
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$source = strtolower($matches[2]);
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$event->add_querylet(new Querylet('images.source LIKE :src', array("src"=>"%$source%")));
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}
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else if(preg_match("/^posted([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])([0-9-]*)$/", $event->term, $matches)) {
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$cmp = ltrim($matches[1], ":") ?: "=";
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$val = $matches[2];
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$event->add_querylet(new Querylet("images.posted $cmp :posted{$this->stpen}", array("posted{$this->stpen}"=>$val)));
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}
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else if(preg_match("/^size([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)x(\d+)$/", $event->term, $matches)) {
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$cmp = ltrim($matches[1], ":") ?: "=";
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$args = array("width{$this->stpen}"=>int_escape($matches[2]), "height{$this->stpen}"=>int_escape($matches[3]));
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$event->add_querylet(new Querylet("width $cmp :width{$this->stpen} AND height $cmp :height{$this->stpen}", $args));
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}
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else if(preg_match("/^width([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)$/", $event->term, $matches)) {
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$cmp = ltrim($matches[1], ":") ?: "=";
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$event->add_querylet(new Querylet("width $cmp :width{$this->stpen}", array("width{$this->stpen}"=>int_escape($matches[2]))));
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}
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else if(preg_match("/^height([:]?<|[:]?>|[:]?<=|[:]?>=|[:|=])(\d+)$/", $event->term, $matches)) {
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$cmp = ltrim($matches[1], ":") ?: "=";
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$event->add_querylet(new Querylet("height $cmp :height{$this->stpen}",array("height{$this->stpen}"=>int_escape($matches[2]))));
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}
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$this->stpen++;
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}
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}
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?>
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