From 39354a0cc0ef32ddd432d8421dc8483002cd855b Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Mon, 28 Sep 2020 15:25:58 +0200
Subject: [dozmod] Implement deleting orphaned files from vm store

This is the UI part that communicates with dmsd to show or delete all
files on the vm store that don't belong to a known VM.
Might be dangerous, use wisely.

Closes #3321
---
 .../dozmod/pages/expiredimages.inc.php             | 105 +++++++++++++--------
 1 file changed, 68 insertions(+), 37 deletions(-)

(limited to 'modules-available/dozmod/pages/expiredimages.inc.php')

diff --git a/modules-available/dozmod/pages/expiredimages.inc.php b/modules-available/dozmod/pages/expiredimages.inc.php
index 2b5a2274..ffd7b026 100644
--- a/modules-available/dozmod/pages/expiredimages.inc.php
+++ b/modules-available/dozmod/pages/expiredimages.inc.php
@@ -5,40 +5,7 @@ class SubPage
 
 	public static function doPreprocess()
 	{
-		$action = Request::post('action', false, 'string');
 
-		if ($action === 'delimages') {
-			if (User::hasPermission("expiredimages.delete")) {
-				$result = self::handleDeleteImages();
-				if (!empty($result)) {
-					Message::addInfo('delete-images', $result);
-				}
-				Util::redirect('?do=DozMod');
-			}
-		}
-	}
-
-	private static function handleDeleteImages()
-	{
-		$images = Request::post('images', false);
-		if (is_array($images)) {
-			foreach ($images as $image => $val) {
-				if (strtolower($val) !== 'on')
-					continue;
-				Database::exec("UPDATE sat.imageversion SET deletestate = 'WANT_DELETE'"
-					. " WHERE deletestate = 'SHOULD_DELETE' AND imageversionid = :imageversionid", array(
-					'imageversionid' => $image
-				));
-			}
-			if (!empty($images)) {
-				$ret = Download::asStringPost('http://127.0.0.1:9080/do/delete-images', false, 10, $code);
-				if ($code == 999) {
-					$ret .= "\nConnection to DMSD failed.";
-				}
-				return $ret;
-			}
-		}
-		return false;
 	}
 
 	private static function loadExpiredImages()
@@ -80,7 +47,9 @@ class SubPage
 		if (empty($expiredImages)) {
 			Message::addSuccess('no-expired-images');
 		} else {
-			Render::addTemplate('images-delete', array('images' => $expiredImages, 'allowedDelete' => User::hasPermission("expiredimages.delete")));
+			$data = ['images' => $expiredImages];
+			Permission::addGlobalTags($data['perm'], null, ['expiredimages.delete', 'orphaned.scan']);
+			Render::addTemplate('images-delete', $data);
 		}
 	}
 
@@ -88,10 +57,72 @@ class SubPage
 	{
 		$action = Request::post('action');
 		if ($action === 'delimages') {
-			User::assertPermission("expiredimages.delete");
-			die(self::handleDeleteImages());
+			self::handleDeleteImages();
+		} elseif ($action === 'orphaned') {
+			self::handleOrphaned();
+		} else {
+			echo 'Huh?';
+		}
+	}
+
+	private static function handleDeleteImages()
+	{
+		User::assertPermission("expiredimages.delete");
+		$images = Request::post('images', false);
+		$result = false;
+		if (is_array($images)) {
+			foreach ($images as $image => $val) {
+				if (strtolower($val) !== 'on')
+					continue;
+				Database::exec("UPDATE sat.imageversion SET deletestate = 'WANT_DELETE'"
+					. " WHERE deletestate = 'SHOULD_DELETE' AND imageversionid = :imageversionid", array(
+					'imageversionid' => $image
+				));
+			}
+			if (!empty($images)) {
+				$result = Download::asStringPost('http://127.0.0.1:9080/do/delete-images', false, 10, $code);
+				if ($code == 999) {
+					$result .= "\nConnection to DMSD failed.";
+				}
+			}
+		}
+		if (!empty($result)) {
+			echo $result;
+		}
+	}
+
+	private static function handleOrphaned()
+	{
+		if (Request::post('delete', 0, 'int') !== 0) {
+			User::assertPermission("orphaned.delete");
+			$action = 'delete';
+		} else {
+			User::assertPermission("orphaned.scan");
+			$action = 'scan';
+		}
+		// Talk to dmsd
+		$result = Download::asStringPost('http://127.0.0.1:9080/do/scan-orphaned-files', ['action' => $action],
+			10, $code);
+		if ($code == 999) {
+			$result = '<div class="alert alert-warning">'
+				. $result . ' - Connection to DMSD failed.</div>';
+		} else {
+			$json = json_decode($result, true);
+			if (is_array($json)) {
+				$result = [];
+				$showDelete = false;
+				foreach ($json as $k => $v) {
+					$result[] = ['file' => $k, 'status' => $v];
+					if ($v === 'EXISTS') {
+						$showDelete = true;
+					}
+				}
+				$data = ['files' => $result, 'show_delete' => $showDelete];
+				Permission::addGlobalTags($data['perm'], null, ['orphaned.delete']);
+				$result = Render::parse('images-orphaned', $data);
+			}
 		}
-		die('Huh?');
+		echo $result;
 	}
 
 }
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