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Fix symlink detection.

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This commit is contained in:
wizjany 2019-03-15 09:10:51 -04:00
parent 4191f017f1
commit 18414fe3b5
1 changed files with 9 additions and 3 deletions
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12
worldedit-core/src/main/java/com/sk89q/worldedit/WorldEdit.java
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@ -284,12 +284,18 @@ public final class WorldEdit {
Path filePath = Paths.get(f.toURI()).normalize();
Path dirPath = Paths.get(dir.toURI()).normalize();
if (!filePath.startsWith(dirPath)
|| (!getConfiguration().allowSymlinks && !filePath.toRealPath().startsWith(dirPath))) {
boolean inDir = filePath.startsWith(dirPath);
Path existingParent = filePath;
do {
existingParent = existingParent.getParent();
} while (existingParent != null && !existingParent.toFile().exists());
boolean isSym = existingParent != null && !existingParent.toRealPath().equals(existingParent);
if (!inDir || (!getConfiguration().allowSymlinks && isSym)) {
throw new FilenameResolutionException(filename, "Path is outside allowable root");
}
return f;
return filePath.toFile();
} catch (IOException e) {
throw new FilenameResolutionException(filename, "Failed to resolve path");
}