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Fix OutOfBoundsException when parsing a single letter path component

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comp500 2022-07-17 01:07:48 +01:00
parent ca172bdefc
commit 783e35cf73
1 changed files with 5 additions and 3 deletions
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2
src/main/kotlin/link/infra/packwiz/installer/target/path/PackwizPath.kt
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@ -43,6 +43,7 @@ abstract class PackwizPath<T: PackwizPath<T>>(path: String? = null) {
} else {
canonicalised += componentNorm
// Don't allow volume letters (allows traversal to the root on Windows)
if (componentNorm.length == 2) {
if (componentNorm[0] in 'a'..'z' || componentNorm[0] in 'A'..'Z') {
if (componentNorm[1] == ':') {
throw RequestException.Validation.PathContainsVolumeLetter(path)
@ -50,6 +51,7 @@ abstract class PackwizPath<T: PackwizPath<T>>(path: String? = null) {
}
}
}
}
if (canonicalised.isEmpty()) {
this.path = null