fix: ensure the matrix is square when decoding QR Code

soya-daizu · Jun 4, 2023 · 3cff113 · 3cff113
1 parent 6a27ed0
commit 3cff113
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/goban/qr/decoder.cr b/src/goban/qr/decoder.cr
@@ -15,6 +15,8 @@ struct Goban::QR < Goban::AbstractQR
     end
 
     def decode(matrix : Matrix(UInt8))
+      raise InputError.new("Matrix not square") unless matrix.size_x == matrix.size_y
+
       version = self.read_version(matrix)
       mask, ecl = self.read_format(matrix)