<?

//Function used for pagination of peer/snatch/download lists on details.php
function js_pages($Action, $TorrentID, $NumResults, $CurrentPage) {
	$NumPages = ceil($NumResults / 100);
	$PageLinks = array();
	for ($i = 1; $i <= $NumPages; $i++) {
		if ($i == $CurrentPage) {
			$PageLinks[] = $i;
		} else {
			$PageLinks[] = "<a href=\"#\" onclick=\"$Action($TorrentID, $i)\">$i</a>";
		}
	}
	return implode(' | ', $PageLinks);
}

// This gets used in a few places
$ArtistTypes = array(1 => 'Main', 2 => 'Guest', 3 => 'Remixer', 4 => 'Composer', 5 => 'Conductor', 6 => 'DJ/Compiler', 7 => 'Producer');

if (!empty($_REQUEST['action'])) {
	switch ($_REQUEST['action']) {
		case 'edit':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/edit.php');
			break;

		case 'editgroup':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/editgroup.php');
			break;

		case 'editgroupid':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/editgroupid.php');
			break;

		case 'changecategory':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/takechangecategory.php');
			break;

		case 'takeedit':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/takeedit.php');
			break;

		case 'newgroup':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/takenewgroup.php');
			break;

		case 'peerlist':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/peerlist.php');
			break;

		case 'snatchlist':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/snatchlist.php');
			break;

		case 'downloadlist':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/downloadlist.php');
			break;

		case 'redownload':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/redownload.php');
			break;

		case 'revert':
		case 'takegroupedit':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/takegroupedit.php');
			break;

		case 'nonwikiedit':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/nonwikiedit.php');
			break;

		case 'rename':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/rename.php');
			break;

		case 'merge':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/merge.php');
			break;

		case 'add_alias':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/add_alias.php');
			break;

		case 'delete_alias':
			enforce_login();
			authorize();
			include(SERVER_ROOT.'/sections/torrents/delete_alias.php');
			break;

		case 'history':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/history.php');
			break;

		case 'delete':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/delete.php');
			break;

		case 'takedelete':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/takedelete.php');
			break;

		case 'masspm':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/masspm.php');
			break;

		case 'reseed':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/reseed.php');
			break;

		case 'takemasspm':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/takemasspm.php');
			break;

		case 'vote_tag':
			enforce_login();
			authorize();
			include(SERVER_ROOT.'/sections/torrents/vote_tag.php');
			break;

		case 'add_tag':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/add_tag.php');
			break;

		case 'delete_tag':
			enforce_login();
			authorize();
			include(SERVER_ROOT.'/sections/torrents/delete_tag.php');
			break;

		case 'notify':
			enforce_login();
			include(SERVER_ROOT.'/sections/torrents/notify.php');
			break;

		case 'manage_artists':
			enforce_login();
			require(SERVER_ROOT.'/sections/torrents/manage_artists.php');
			break;

		case 'notify_clear':
		case 'notify_clear_item':
		case 'notify_clear_items':
		case 'notify_clearitem':
		case 'notify_clear_filter':
		case 'notify_cleargroup':
		case 'notify_catchup':
		case 'notify_catchup_filter':
			authorize();
			enforce_login();
			require(SERVER_ROOT.'/sections/torrents/notify_actions.php');
			break;

		case 'download':
			require(SERVER_ROOT.'/sections/torrents/download.php');
			break;

		case 'reply':
			enforce_login();
			authorize();

			if (!isset($_POST['groupid']) || !is_number($_POST['groupid']) || trim($_POST['body']) === '' || !isset($_POST['body'])) {
				error(0);
			}
			if ($LoggedUser['DisablePosting']) {
				error('Your posting privileges have been removed.');
			}

			$GroupID = $_POST['groupid'];
			if (!$GroupID) {
				error(404);
			}

			$DB->query("
				SELECT
					CEIL((
						SELECT COUNT(ID) + 1
						FROM torrents_comments AS tc
						WHERE tc.GroupID = '".db_string($GroupID)."'
						) / ".TORRENT_COMMENTS_PER_PAGE.'
					) AS Pages');
			list($Pages) = $DB->next_record();

			$DB->query("
				INSERT INTO torrents_comments
					(GroupID, AuthorID, AddedTime, Body)
				VALUES
					('".db_string($GroupID)."', '".db_string($LoggedUser['ID'])."', '".sqltime()."', '".db_string($_POST['body'])."')");
			$PostID = $DB->inserted_id();

			$CatalogueID = floor((TORRENT_COMMENTS_PER_PAGE * $Pages - TORRENT_COMMENTS_PER_PAGE) / THREAD_CATALOGUE);
			$Cache->begin_transaction("torrent_comments_{$GroupID}_catalogue_$CatalogueID");
			$Post = array(
				'ID' => $PostID,
				'AuthorID' => $LoggedUser['ID'],
				'AddedTime' => sqltime(),
				'Body' => $_POST['body'],
				'EditedUserID' => 0,
				'EditedTime' => '0000-00-00 00:00:00',
				'Username' => ''
				);
			$Cache->insert('', $Post);
			$Cache->commit_transaction(0);
			$Cache->increment("torrent_comments_$GroupID");

			header("Location: torrents.php?id=$GroupID&page=$Pages");
			break;

		case 'get_post':
			enforce_login();
			if (!$_GET['post'] || !is_number($_GET['post'])) {
				error(0);
			}
			$DB->query("
				SELECT Body
				FROM torrents_comments
				WHERE ID = '".db_string($_GET['post'])."'");
			list($Body) = $DB->next_record(MYSQLI_NUM);

			echo trim($Body);
			break;

		case 'takeedit_post':
			enforce_login();
			authorize();

			include(SERVER_ROOT.'/classes/text.class.php'); // Text formatting class
			$Text = new TEXT;

			// Quick SQL injection check
			if (!$_POST['post'] || !is_number($_POST['post'])) {
				error(0);
			}

			// Mainly
			$DB->query("
				SELECT
					tc.Body,
					tc.AuthorID,
					tc.GroupID,
					tc.AddedTime
				FROM torrents_comments AS tc
				WHERE tc.ID = '".db_string($_POST['post'])."'");
			list($OldBody, $AuthorID, $GroupID, $AddedTime) = $DB->next_record();

			$DB->query("
				SELECT ceil(COUNT(ID) / ".TORRENT_COMMENTS_PER_PAGE.") AS Page
				FROM torrents_comments
				WHERE GroupID = $GroupID
					AND ID <= $_POST[post]");
			list($Page) = $DB->next_record();

			if ($LoggedUser['ID'] != $AuthorID && !check_perms('site_moderate_forums')) {
				error(404);
			}
			if ($DB->record_count() == 0) {
				error(404);
			}

			// Perform the update
			$DB->query("
				UPDATE torrents_comments
				SET
					Body = '".db_string($_POST['body'])."',
					EditedUserID = '".db_string($LoggedUser['ID'])."',
					EditedTime = '".sqltime()."'
				WHERE ID = '".db_string($_POST['post'])."'");

			// Update the cache
			$CatalogueID = floor((TORRENT_COMMENTS_PER_PAGE * $Page - TORRENT_COMMENTS_PER_PAGE) / THREAD_CATALOGUE);
			$Cache->begin_transaction("torrent_comments_{$GroupID}_catalogue_$CatalogueID");

			$Cache->update_row($_POST['key'], array(
				'ID' => $_POST['post'],
				'AuthorID' => $AuthorID,
				'AddedTime' => $AddedTime,
				'Body' => $_POST['body'],
				'EditedUserID' => db_string($LoggedUser['ID']),
				'EditedTime' => sqltime(),
				'Username' => $LoggedUser['Username']
			));
			$Cache->commit_transaction(0);

			$DB->query("
				INSERT INTO comments_edits
					(Page, PostID, EditUser, EditTime, Body)
				VALUES
					('torrents', ".db_string($_POST['post']).", ".db_string($LoggedUser['ID']).", '".sqltime()."', '".db_string($OldBody)."')");

			// This gets sent to the browser, which echoes it in place of the old body
			echo $Text->full_format($_POST['body']);
			break;

		case 'delete_post':
			enforce_login();
			authorize();

			// Quick SQL injection check
			if (!$_GET['postid'] || !is_number($_GET['postid'])) {
				error(0);
			}

			// Make sure they are moderators
			if (!check_perms('site_moderate_forums')) {
				error(403);
			}

			// Get topicid, forumid, number of pages
			$DB->query("
				SELECT
					GroupID,
					CEIL(COUNT(tc.ID) / ".TORRENT_COMMENTS_PER_PAGE.") AS Pages,
					CEIL(SUM(IF(tc.ID <= ".$_GET['postid'].", 1, 0)) / ".TORRENT_COMMENTS_PER_PAGE.") AS Page
				FROM torrents_comments AS tc
				WHERE tc.GroupID =
						(SELECT GroupID
						FROM torrents_comments
						WHERE ID = ".$_GET['postid'].')
				GROUP BY tc.GroupID');
			list($GroupID, $Pages, $Page) = $DB->next_record();

			// $Pages = number of pages in the thread
			// $Page = which page the post is on
			// These are set for cache clearing.

			$DB->query("
				DELETE FROM torrents_comments
				WHERE ID = '".db_string($_GET['postid'])."'");

			//We need to clear all subsequential catalogues as they've all been bumped with the absence of this post
			$ThisCatalogue = floor((TORRENT_COMMENTS_PER_PAGE * $Page - TORRENT_COMMENTS_PER_PAGE) / THREAD_CATALOGUE);
			$LastCatalogue = floor((TORRENT_COMMENTS_PER_PAGE * $Pages - TORRENT_COMMENTS_PER_PAGE) / THREAD_CATALOGUE);
			for ($i = $ThisCatalogue; $i <= $LastCatalogue; $i++) {
				$Cache->delete_value("torrent_comments_{$GroupID}_catalogue_$i");
			}

			// Delete thread info cache (e.g. number of pages)
			$Cache->delete_value("torrent_comments_$GroupID");

			break;
		case 'regen_filelist':
			if (check_perms('users_mod') && !empty($_GET['torrentid']) && is_number($_GET['torrentid'])) {
				Torrents::regenerate_filelist($_GET['torrentid']);
				header('Location: torrents.php?torrentid='.$_GET['torrentid']);
				die();
			} else {
				error(403);
			}
			break;
		case 'fix_group':
			if ((check_perms('users_mod') || check_perms('torrents_fix_ghosts')) && authorize() && !empty($_GET['groupid']) && is_number($_GET['groupid'])) {
				$DB->query('
					SELECT COUNT(ID)
					FROM torrents
					WHERE GroupID = '.$_GET['groupid']);
				list($Count) = $DB->next_record();
				if ($Count == 0) {
					Torrents::delete_group($_GET['groupid']);
				} else {
				}
				if (!empty($_GET['artistid']) && is_number($_GET['artistid'])) {
					header('Location: artist.php?id='.$_GET['artistid']);
				} else {
					header('Location: torrents.php?id='.$_GET['groupid']);
				}
			} else {
				error(403);
			}
			break;
		case 'warn':
			include(SERVER_ROOT.'/sections/torrents/warn.php');
			break;
		case 'take_warn':
			include(SERVER_ROOT.'/sections/torrents/take_warn.php');
			break;
		case 'add_cover_art':
			include(SERVER_ROOT.'/sections/torrents/add_cover_art.php');
			break;
		case 'remove_cover_art':
			include(SERVER_ROOT.'/sections/torrents/remove_cover_art.php');
			break;
		case 'autocomplete_tags':
			include(SERVER_ROOT.'/sections/torrents/autocomplete_tags.php');
			break;
		default:
			enforce_login();

			if (!empty($_GET['id'])) {
				include(SERVER_ROOT.'/sections/torrents/details.php');
			} elseif (isset($_GET['torrentid']) && is_number($_GET['torrentid'])) {
				$DB->query('
					SELECT GroupID
					FROM torrents
					WHERE ID = '.$_GET['torrentid']);
				list($GroupID) = $DB->next_record();
				if ($GroupID) {
					header("Location: torrents.php?id=$GroupID&torrentid=".$_GET['torrentid']);
				}
			} else {
				include(SERVER_ROOT.'/sections/torrents/browse2.php');
			}
			break;
	}
} else {
	enforce_login();

	if (!empty($_GET['id'])) {
		include(SERVER_ROOT.'/sections/torrents/details.php');
	} elseif (isset($_GET['torrentid']) && is_number($_GET['torrentid'])) {
		$DB->query("
			SELECT GroupID
			FROM torrents
			WHERE ID = ".$_GET['torrentid']);
		list($GroupID) = $DB->next_record();
		if ($GroupID) {
			header("Location: torrents.php?id=$GroupID&torrentid=".$_GET['torrentid'].'#torrent'.$_GET['torrentid']);
		} else {
			header("Location: log.php?search=Torrent+$_GET[torrentid]");
		}
	} elseif (!empty($_GET['type'])) {
		include(SERVER_ROOT.'/sections/torrents/user.php');
	} elseif (!empty($_GET['groupname']) && !empty($_GET['forward'])) {
		$DB->query("
			SELECT ID
			FROM torrents_group
			WHERE Name LIKE '".db_string($_GET['groupname'])."'");
		list($GroupID) = $DB->next_record();
		if ($GroupID) {
			header("Location: torrents.php?id=$GroupID");
		} else {
			include(SERVER_ROOT.'/sections/torrents/browse2.php');
		}
	} else {
		include(SERVER_ROOT.'/sections/torrents/browse2.php');
	}
}
?>