shimmie2/ext/admin/main.php

291 lines
9.3 KiB
PHP

<?php
/**
* Name: Admin Controls
* Author: Shish <webmaster@shishnet.org>
* Link: http://code.shishnet.org/shimmie2/
* License: GPLv2
* Description: Various things to make admins' lives easier
* Documentation:
* Various moderate-level tools for admins; for advanced, obscure, and
* possibly dangerous tools see the shimmie2-utils script set
* <p>Lowercase all tags:
* <br>Set all tags to lowercase for consistency
* <p>Recount tag use:
* <br>If the counts of images per tag get messed up somehow, this will
* reset them, and remove any unused tags
* <p>Database dump:
* <br>Download the contents of the database in plain text format, useful
* for backups.
* <p>Image dump:
* <br>Download all the images as a .zip file (Requires ZipArchive)
*/
/**
* Sent when the admin page is ready to be added to
*/
class AdminBuildingEvent extends Event
{
/** @var Page */
public $page;
public function __construct(Page $page)
{
$this->page = $page;
}
}
class AdminActionEvent extends Event
{
/** @var string */
public $action;
/** @var bool */
public $redirect = true;
public function __construct(string $action)
{
$this->action = $action;
}
}
class AdminPage extends Extension
{
public function onPageRequest(PageRequestEvent $event)
{
global $page, $user;
if ($event->page_matches("admin")) {
if (!$user->can("manage_admintools")) {
$this->theme->display_permission_denied();
} else {
if ($event->count_args() == 0) {
send_event(new AdminBuildingEvent($page));
} else {
$action = $event->get_arg(0);
$aae = new AdminActionEvent($action);
if ($user->check_auth_token()) {
log_info("admin", "Util: $action");
set_time_limit(0);
send_event($aae);
}
if ($aae->redirect) {
$page->set_mode("redirect");
$page->set_redirect(make_link("admin"));
}
}
}
}
}
public function onCommand(CommandEvent $event)
{
if ($event->cmd == "help") {
print "\tget-page [query string]\n";
print "\t\teg 'get-page post/list'\n\n";
print "\tregen-thumb [hash]\n";
print "\t\tregenerate a thumbnail\n\n";
}
if ($event->cmd == "get-page") {
global $page;
send_event(new PageRequestEvent($event->args[0]));
$page->display();
}
if ($event->cmd == "regen-thumb") {
$image = Image::by_hash($event->args[0]);
if ($image) {
print("Regenerating thumb for image {$image->id} ({$image->hash})\n");
send_event(new ThumbnailGenerationEvent($image->hash, $image->ext, true));
} else {
print("Can't find image with hash {$event->args[0]}\n");
}
}
}
public function onAdminBuilding(AdminBuildingEvent $event)
{
$this->theme->display_page();
$this->theme->display_form();
}
public function onUserBlockBuilding(UserBlockBuildingEvent $event)
{
global $user;
if ($user->can("manage_admintools")) {
$event->add_link("Board Admin", make_link("admin"));
}
}
public function onAdminAction(AdminActionEvent $event)
{
$action = $event->action;
if (method_exists($this, $action)) {
$event->redirect = $this->$action();
}
}
public function onPostListBuilding(PostListBuildingEvent $event)
{
global $user;
if ($user->can("manage_admintools") && !empty($event->search_terms)) {
$event->add_control($this->theme->dbq_html(Tag::implode($event->search_terms)));
}
}
private function delete_by_query()
{
global $page;
$query = $_POST['query'];
$reason = @$_POST['reason'];
assert(strlen($query) > 1);
$images = Image::find_images(0, 1000000, Tag::explode($query));
$count = count($images);
log_warning("admin", "Mass-deleting $count images from $query", "Mass deleted $count images");
foreach ($images as $image) {
if ($reason && class_exists("ImageBan")) {
send_event(new AddImageHashBanEvent($image->hash, $reason));
}
send_event(new ImageDeletionEvent($image));
}
$page->set_mode("redirect");
$page->set_redirect(make_link("post/list"));
return false;
}
private function set_tag_case()
{
global $database;
$database->execute($database->scoreql_to_sql(
"UPDATE tags SET tag=:tag1 WHERE SCORE_STRNORM(tag) = SCORE_STRNORM(:tag2)"
), ["tag1" => $_POST['tag'], "tag2" => $_POST['tag']]);
log_info("admin", "Fixed the case of ".html_escape($_POST['tag']), "Fixed case");
return true;
}
private function lowercase_all_tags()
{
global $database;
$database->execute("UPDATE tags SET tag=lower(tag)");
log_warning("admin", "Set all tags to lowercase", "Set all tags to lowercase");
return true;
}
private function recount_tag_use()
{
global $database;
$database->Execute("
UPDATE tags
SET count = COALESCE(
(SELECT COUNT(image_id) FROM image_tags WHERE tag_id=tags.id GROUP BY tag_id),
0
)
");
$database->Execute("DELETE FROM tags WHERE count=0");
log_warning("admin", "Re-counted tags", "Re-counted tags");
return true;
}
private function database_dump()
{
global $page;
$matches = [];
preg_match("#^(?P<proto>\w+)\:(?:user=(?P<user>\w+)(?:;|$)|password=(?P<password>\w*)(?:;|$)|host=(?P<host>[\w\.\-]+)(?:;|$)|dbname=(?P<dbname>[\w_]+)(?:;|$))+#", DATABASE_DSN, $matches);
$software = $matches['proto'];
$username = $matches['user'];
$password = $matches['password'];
$hostname = $matches['host'];
$database = $matches['dbname'];
switch ($software) {
case 'mysql':
$cmd = "mysqldump -h$hostname -u$username -p$password $database";
break;
case 'pgsql':
putenv("PGPASSWORD=$password");
$cmd = "pg_dump -h $hostname -U $username $database";
break;
case 'sqlite':
$cmd = "sqlite3 $database .dump";
break;
default:
$cmd = false;
}
//FIXME: .SQL dump is empty if cmd doesn't exist
if ($cmd) {
$page->set_mode("data");
$page->set_type("application/x-unknown");
$page->set_filename('shimmie-'.date('Ymd').'.sql');
$page->set_data(shell_exec($cmd));
}
return false;
}
private function download_all_images()
{
global $database, $page;
$images = $database->get_all("SELECT hash, ext FROM images");
$filename = data_path('imgdump-'.date('Ymd').'.zip');
$zip = new ZipArchive;
if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE) === true) {
foreach ($images as $img) {
$img_loc = warehouse_path("images", $img["hash"], false);
$zip->addFile($img_loc, $img["hash"].".".$img["ext"]);
}
$zip->close();
}
$page->set_mode("redirect");
$page->set_redirect(make_link($filename)); //TODO: Delete file after downloaded?
return false; // we do want a redirect, but a manual one
}
private function reset_image_ids()
{
global $database;
//TODO: Make work with PostgreSQL + SQLite
//TODO: Update score_log (Having an optional ID column for score_log would be nice..)
preg_match("#^(?P<proto>\w+)\:(?:user=(?P<user>\w+)(?:;|$)|password=(?P<password>\w*)(?:;|$)|host=(?P<host>[\w\.\-]+)(?:;|$)|dbname=(?P<dbname>[\w_]+)(?:;|$))+#", DATABASE_DSN, $matches);
if ($matches['proto'] == "mysql") {
$tables = $database->get_col("SELECT TABLE_NAME
FROM information_schema.KEY_COLUMN_USAGE
WHERE TABLE_SCHEMA = :db
AND REFERENCED_COLUMN_NAME = 'id'
AND REFERENCED_TABLE_NAME = 'images'", ["db" => $matches['dbname']]);
$i = 1;
$ids = $database->get_col("SELECT id FROM images ORDER BY images.id ASC");
foreach ($ids as $id) {
$sql = "SET FOREIGN_KEY_CHECKS=0;
UPDATE images SET id={$i} WHERE image_id={$id};";
foreach ($tables as $table) {
$sql .= "UPDATE {$table} SET image_id={$i} WHERE image_id={$id};";
}
$sql .= " SET FOREIGN_KEY_CHECKS=1;";
$database->execute($sql);
$i++;
}
$database->execute("ALTER TABLE images AUTO_INCREMENT=".(count($ids) + 1));
} elseif ($matches['proto'] == "pgsql") {
//TODO: Make this work with PostgreSQL
} elseif ($matches['proto'] == "sqlite") {
//TODO: Make this work with SQLite
}
return true;
}
}