From beca3a707d741825a0c838ff728dcca767ce38b2 Mon Sep 17 00:00:00 2001
From: wizjany <wizjany@gmail.com>
Date: Sun, 30 Aug 2020 12:11:34 -0400
Subject: [PATCH] Workaround for snapshot files with not-to-spec slashes.

---
 .../world/storage/TrueZipMcRegionChunkStore.java     | 11 ++++++++---
 .../world/storage/ZippedMcRegionChunkStore.java      | 12 +++++++++---
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/world/storage/TrueZipMcRegionChunkStore.java b/worldedit-core/src/main/java/com/sk89q/worldedit/world/storage/TrueZipMcRegionChunkStore.java
index 879410d75..679d7257c 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/world/storage/TrueZipMcRegionChunkStore.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/world/storage/TrueZipMcRegionChunkStore.java
@@ -97,10 +97,15 @@ protected InputStream getInputStream(String name, String worldName) throws IOExc
             for (Enumeration<? extends ZipEntry> e = zip.entries(); e.hasMoreElements(); ) {
                 ZipEntry testEntry = e.nextElement();
                 // Check for world
-                if (worldPattern.matcher(testEntry.getName()).matches()) {
+                String entryName = testEntry.getName();
+                if (worldPattern.matcher(entryName).matches()) {
                     // Check for file
-                    if (pattern.matcher(testEntry.getName()).matches()) {
-                        folder = testEntry.getName().substring(0, testEntry.getName().lastIndexOf('/'));
+                    if (pattern.matcher(entryName).matches()) {
+                        int endIndex = entryName.lastIndexOf('/');
+                        if (endIndex < 0) {
+                            endIndex = entryName.lastIndexOf('\\');
+                        }
+                        folder = entryName.substring(0, endIndex);
                         if (folder.endsWith("poi")) {
                             continue;
                         }
diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/world/storage/ZippedMcRegionChunkStore.java b/worldedit-core/src/main/java/com/sk89q/worldedit/world/storage/ZippedMcRegionChunkStore.java
index 4b0272be0..030004ee3 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/world/storage/ZippedMcRegionChunkStore.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/world/storage/ZippedMcRegionChunkStore.java
@@ -81,12 +81,18 @@ protected InputStream getInputStream(String name, String worldName) throws IOExc
             }
         } else {
             Pattern pattern = Pattern.compile(".*\\.mc[ra]$");
+            Pattern worldPattern = Pattern.compile(worldName + "[\\\\/].*");
             for (Enumeration<? extends ZipEntry> e = zip.entries(); e.hasMoreElements(); ) {
                 ZipEntry testEntry = e.nextElement();
                 // Check for world
-                if (testEntry.getName().startsWith(worldName + "/")) {
-                    if (pattern.matcher(testEntry.getName()).matches()) { // does entry end in .mca
-                        folder = testEntry.getName().substring(0, testEntry.getName().lastIndexOf('/'));
+                String entryName = testEntry.getName();
+                if (worldPattern.matcher(entryName).matches()) {
+                    if (pattern.matcher(entryName).matches()) { // does entry end in .mca
+                        int endIndex = entryName.lastIndexOf('/');
+                        if (endIndex < 0) {
+                            endIndex = entryName.lastIndexOf('\\');
+                        }
+                        folder = entryName.substring(0, endIndex);
                         if (folder.endsWith("poi")) {
                             continue;
                         }