302 lines
9.8 KiB
PHP
302 lines
9.8 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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* Various moderate-level tools for admins; for advanced, obscure, and
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* possibly dangerous tools see the shimmie2-utils script set
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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
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* reset them, and remove any unused tags
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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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* <p>Image dump:
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* <br>Download all the images as a .zip file (Requires ZipArchive)
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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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{
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/** @var Page */
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public $page;
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public function __construct(Page $page)
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{
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$this->page = $page;
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}
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}
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class AdminActionEvent extends Event
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{
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/** @var string */
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public $action;
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/** @var bool */
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public $redirect = true;
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public function __construct(string $action)
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{
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$this->action = $action;
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}
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}
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class AdminPage extends Extension
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{
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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("admin")) {
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if (!$user->can(Permissions::MANAGE_ADMINTOOLS)) {
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$this->theme->display_permission_denied();
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} else {
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if ($event->count_args() == 0) {
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send_event(new AdminBuildingEvent($page));
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} else {
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$action = $event->get_arg(0);
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$aae = new AdminActionEvent($action);
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if ($user->check_auth_token()) {
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log_info("admin", "Util: $action");
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set_time_limit(0);
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send_event($aae);
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}
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if ($aae->redirect) {
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$page->set_mode(PageMode::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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}
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public function onCommand(CommandEvent $event)
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{
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if ($event->cmd == "help") {
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print "\tget-page [query string]\n";
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print "\t\teg 'get-page post/list'\n\n";
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print "\tregen-thumb [hash]\n";
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print "\t\tregenerate a thumbnail\n\n";
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}
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if ($event->cmd == "get-page") {
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global $page;
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send_event(new PageRequestEvent($event->args[0]));
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$page->display();
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}
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if ($event->cmd == "regen-thumb") {
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$image = Image::by_hash($event->args[0]);
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if ($image) {
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print("Regenerating thumb for image {$image->id} ({$image->hash})\n");
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send_event(new ThumbnailGenerationEvent($image->hash, $image->ext, true));
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} else {
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print("Can't find image with hash {$event->args[0]}\n");
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}
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}
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}
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public function onAdminBuilding(AdminBuildingEvent $event)
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{
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$this->theme->display_page();
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$this->theme->display_form();
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}
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public function onPageSubNavBuilding(PageSubNavBuildingEvent $event)
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{
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global $user;
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if($event->parent==="system") {
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if ($user->can(Permissions::MANAGE_ADMINTOOLS)) {
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$event->add_nav_link("admin", new Link('admin'), "Board Admin");
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}
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}
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}
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public function onUserBlockBuilding(UserBlockBuildingEvent $event)
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{
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global $user;
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if ($user->can(Permissions::MANAGE_ADMINTOOLS)) {
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$event->add_link("Board Admin", make_link("admin"));
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}
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}
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public function onAdminAction(AdminActionEvent $event)
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{
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$action = $event->action;
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if (method_exists($this, $action)) {
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$event->redirect = $this->$action();
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}
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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->can("manage_admintools") && !empty($event->search_terms)) {
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// $event->add_control($this->theme->dbq_html(Tag::implode($event->search_terms)));
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// }
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// }
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private function delete_by_query()
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{
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global $page;
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$query = $_POST['query'];
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$reason = @$_POST['reason'];
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assert(strlen($query) > 1);
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$images = Image::find_images(0, 1000000, Tag::explode($query));
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$count = count($images);
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log_warning("admin", "Mass-deleting $count images from $query", "Mass deleted $count images");
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foreach ($images as $image) {
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if ($reason && class_exists("ImageBan")) {
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send_event(new AddImageHashBanEvent($image->hash, $reason));
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}
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send_event(new ImageDeletionEvent($image, true));
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}
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$page->set_mode(PageMode::REDIRECT);
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$page->set_redirect(make_link("post/list"));
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return false;
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}
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private function set_tag_case()
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{
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global $database;
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$database->execute($database->scoreql_to_sql(
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"UPDATE tags SET tag=:tag1 WHERE SCORE_STRNORM(tag) = SCORE_STRNORM(:tag2)"
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), ["tag1" => $_POST['tag'], "tag2" => $_POST['tag']]);
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log_info("admin", "Fixed the case of ".html_escape($_POST['tag']), "Fixed case");
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return true;
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}
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private function lowercase_all_tags()
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{
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global $database;
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$database->execute("UPDATE tags SET tag=lower(tag)");
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log_warning("admin", "Set all tags to lowercase", "Set all tags to lowercase");
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return true;
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}
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private function recount_tag_use()
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{
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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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$database->Execute("DELETE FROM tags WHERE count=0");
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log_warning("admin", "Re-counted tags", "Re-counted tags");
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return true;
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}
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private function database_dump()
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{
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global $page;
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$matches = [];
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preg_match("#^(?P<proto>\w+)\:(?:user=(?P<user>\w+)(?:;|$)|password=(?P<password>\w*)(?:;|$)|host=(?P<host>[\w\.\-]+)(?:;|$)|dbname=(?P<dbname>[\w_]+)(?:;|$))+#", DATABASE_DSN, $matches);
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$software = $matches['proto'];
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$username = $matches['user'];
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$password = $matches['password'];
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$hostname = $matches['host'];
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$database = $matches['dbname'];
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switch ($software) {
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case DatabaseDriver::MYSQL:
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$cmd = "mysqldump -h$hostname -u$username -p$password $database";
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break;
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case DatabaseDriver::PGSQL:
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putenv("PGPASSWORD=$password");
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$cmd = "pg_dump -h $hostname -U $username $database";
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break;
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case DatabaseDriver::SQLITE:
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$cmd = "sqlite3 $database .dump";
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break;
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default:
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$cmd = false;
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}
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//FIXME: .SQL dump is empty if cmd doesn't exist
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if ($cmd) {
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$page->set_mode(PageMode::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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return false;
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}
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private function download_all_images()
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{
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global $database, $page;
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$images = $database->get_all("SELECT hash, ext FROM images");
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$filename = data_path('imgdump-'.date('Ymd').'.zip');
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$zip = new ZipArchive;
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if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE) === true) {
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foreach ($images as $img) {
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$img_loc = warehouse_path(Image::IMAGE_DIR, $img["hash"], false);
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$zip->addFile($img_loc, $img["hash"].".".$img["ext"]);
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}
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$zip->close();
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}
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$page->set_mode(PageMode::REDIRECT);
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$page->set_redirect(make_link($filename)); //TODO: Delete file after downloaded?
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return false; // we do want a redirect, but a manual one
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}
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private function reset_image_ids()
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{
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global $database;
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//TODO: Make work with PostgreSQL + SQLite
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//TODO: Update score_log (Having an optional ID column for score_log would be nice..)
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preg_match("#^(?P<proto>\w+)\:(?:user=(?P<user>\w+)(?:;|$)|password=(?P<password>\w*)(?:;|$)|host=(?P<host>[\w\.\-]+)(?:;|$)|dbname=(?P<dbname>[\w_]+)(?:;|$))+#", DATABASE_DSN, $matches);
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if ($matches['proto'] == DatabaseDriver::MYSQL) {
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$tables = $database->get_col("SELECT TABLE_NAME
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FROM information_schema.KEY_COLUMN_USAGE
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WHERE TABLE_SCHEMA = :db
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AND REFERENCED_COLUMN_NAME = 'id'
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AND REFERENCED_TABLE_NAME = 'images'", ["db" => $matches['dbname']]);
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$i = 1;
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$ids = $database->get_col("SELECT id FROM images ORDER BY images.id ASC");
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foreach ($ids as $id) {
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$sql = "SET FOREIGN_KEY_CHECKS=0;
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UPDATE images SET id={$i} WHERE image_id={$id};";
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foreach ($tables as $table) {
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$sql .= "UPDATE {$table} SET image_id={$i} WHERE image_id={$id};";
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}
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$sql .= " SET FOREIGN_KEY_CHECKS=1;";
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$database->execute($sql);
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$i++;
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}
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$database->execute("ALTER TABLE images AUTO_INCREMENT=".(count($ids) + 1));
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} elseif ($matches['proto'] == DatabaseDriver::PGSQL) {
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//TODO: Make this work with PostgreSQL
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} elseif ($matches['proto'] == DatabaseDriver::SQLITE) {
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//TODO: Make this work with SQLite
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}
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return true;
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}
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}
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