249 lines
6.7 KiB
PHP
249 lines
6.7 KiB
PHP
<?php
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/**
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* Name: Admin Controls
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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: Various things to make admins' lives easier
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* Documentation:
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* <p>Lowercase all tags:
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* <br>Set all tags to lowercase for consistency
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* <p>Recount tag use:
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* <br>If the counts of images per tag get messed up somehow, this will reset them
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* <p>Purge unused tags:
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* <br>Get rid of all the tags that don't have any images associated with
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* them (normally they were created as typos or spam); this is mostly for
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* neatness, the performance gain is tiny...
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* <p>Convert to InnoDB:
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* <br>Convert your database tables to InnoDB, thus allowing shimmie to
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* take advantage of useful InnoDB-only features (this should be done
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* automatically, this button only exists as a backup). This only applies
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* to MySQL -- all other databases come with useful features enabled
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* as standard.
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* <p>Database dump:
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* <br>Download the contents of the database in plain text format, useful
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* for backups.
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*/
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/**
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* Sent when the admin page is ready to be added to
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*/
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class AdminBuildingEvent extends Event {
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var $page;
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public function AdminBuildingEvent(Page $page) {
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$this->page = $page;
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}
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}
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class AdminPage extends Extension {
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public function onPageRequest(PageRequestEvent $event) {
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global $page, $user;
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if($event->page_matches("admin")) {
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if(!$user->is_admin()) {
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$this->theme->display_permission_denied($page);
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}
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else {
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send_event(new AdminBuildingEvent($page));
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}
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}
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if($event->page_matches("admin_utils")) {
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if($user->is_admin() && $user->check_auth_token()) {
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log_info("admin", "Util: {$_POST['action']}");
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set_time_limit(0);
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$redirect = false;
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switch($_POST['action']) {
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case 'delete by query':
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$this->delete_by_query($_POST['query']);
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$redirect = true;
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break;
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case 'lowercase all tags':
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$this->lowercase_all_tags();
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$redirect = true;
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break;
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case 'recount tag use':
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$this->recount_tag_use();
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$redirect = true;
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break;
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case 'purge unused tags':
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$this->purge_unused_tags();
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$redirect = true;
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break;
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case 'convert to innodb':
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$this->convert_to_innodb();
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$redirect = true;
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break;
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case 'database dump':
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$this->dbdump($page);
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break;
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case 'reset image ids':
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$this->reset_imageids();
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$redirect = true;
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break;
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case 'image dump':
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$this->imgdump($page);
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break;
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}
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if($redirect) {
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$page->set_mode("redirect");
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$page->set_redirect(make_link("admin"));
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}
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}
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}
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}
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public function onAdminBuilding(AdminBuildingEvent $event) {
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global $page;
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$this->theme->display_page($page);
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$this->theme->display_form($page);
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}
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public function onUserBlockBuilding(UserBlockBuildingEvent $event) {
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global $user;
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if($user->is_admin()) {
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$event->add_link("Board Admin", make_link("admin"));
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}
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}
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private function delete_by_query(/*array(string)*/ $query) {
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global $page, $user;
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assert(strlen($query) > 1);
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foreach(Image::find_images(0, 1000000, Tag::explode($query)) as $image) {
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send_event(new ImageDeletionEvent($image));
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}
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}
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private function lowercase_all_tags() {
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global $database;
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$database->execute("UPDATE tags SET tag=lower(tag)");
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}
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private function recount_tag_use() {
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global $database;
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$database->Execute("
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UPDATE tags
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SET count = COALESCE(
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(SELECT COUNT(image_id) FROM image_tags WHERE tag_id=tags.id GROUP BY tag_id),
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0
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)");
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}
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private function purge_unused_tags() {
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global $database;
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$this->recount_tag_use();
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$database->Execute("DELETE FROM tags WHERE count=0");
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}
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private function dbdump($page) {
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$matches = array();
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preg_match("#(\w+)://(\w+):(\w+)@([\w\.\-]+)/([\w_]+)(\?.*)?#", DATABASE_DSN, $matches);
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$software = $matches[1];
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$username = $matches[2];
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$password = $matches[3];
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$hostname = $matches[4];
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$database = $matches[5];
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switch($software) {
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case 'mysql':
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$cmd = "mysqldump -h$hostname -u$username -p$password $database";
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break;
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}
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$page->set_mode("data");
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$page->set_type("application/x-unknown");
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$page->set_filename('shimmie-'.date('Ymd').'.sql');
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$page->set_data(shell_exec($cmd));
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}
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private function check_for_orphanned_images() {
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$orphans = array();
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foreach(glob("images/*") as $dir) {
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foreach(glob("$dir/*") as $file) {
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$hash = str_replace("$dir/", "", $file);
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if(!$this->db_has_hash($hash)) {
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$orphans[] = $hash;
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}
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}
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}
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}
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/*
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private function convert_to_innodb() {
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global $database;
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if($database->engine->name == "mysql") {
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$tables = $database->db->MetaTables();
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foreach($tables as $table) {
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log_info("upgrade", "converting $table to innodb");
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$database->execute("ALTER TABLE $table TYPE=INNODB");
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}
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}
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}
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*/
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private function reset_imageids() {
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global $database;
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//This might be a bit laggy on boards with lots of images (?)
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//Seems to work fine with 1.2k~ images though.
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$i = 0;
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$image = $database->get_all("SELECT * FROM images ORDER BY images.id ASC");
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/*$score_log = $database->get_all("SELECT message FROM score_log");*/
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foreach($image as $img){
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$xid = $img[0];
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$i = $i + 1;
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$table = array( //Might be missing some tables?
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"image_tags", "tag_histories", "image_reports", "comments", "user_favorites", "tag_histories",
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"numeric_score_votes", "pool_images", "slext_progress_cache", "notes");
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$sql =
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"SET FOREIGN_KEY_CHECKS=0;
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UPDATE images
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SET id=".$i.
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" WHERE id=".$xid.";"; //id for images
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foreach($table as $tbl){
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$sql .= "
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UPDATE ".$tbl."
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SET image_id=".$i."
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WHERE image_id=".$xid.";";
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}
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/*foreach($score_log as $sl){
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//This seems like a bad idea.
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//TODO: Might be better for log_info to have an $id option (which would then affix the id to the table?)
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preg_replace(".Image \\#[0-9]+.", "Image #".$i, $sl);
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}*/
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$sql .= " SET FOREIGN_KEY_CHECKS=1;";
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$database->execute($sql);
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}
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$count = (count($image)) + 1;
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$database->execute("ALTER TABLE images AUTO_INCREMENT=".$count);
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}
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private function imgdump($page) {
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global $database;
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$zip = new ZipArchive;
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$images = $database->get_all("SELECT * FROM images");
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$filename = 'imgdump-'.date('Ymd').'.zip';
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if($zip->open($filename, 1 ? ZIPARCHIVE::OVERWRITE:ZIPARCHIVE::CREATE)===TRUE){
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foreach($images as $img){
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$hash = $img["hash"];
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preg_match("^[A-Za-z0-9]{2}^", $hash, $matches);
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$img_loc = "images/".$matches[0]."/".$hash;
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if(file_exists($img_loc)){
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$zip->addFile($img_loc, $hash.".".$img["ext"]);
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}
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}
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$zip->close();
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}
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$page->set_mode("redirect");
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$page->set_redirect(make_link($filename)); //Fairly sure there is better way to do this..
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//TODO: Delete file after downloaded?
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}
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}
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?>
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