static File getYkcs11Library()

in jsign-core/src/main/java/net/jsign/YubiKey.java [63:112]
42 lines of code
9 McCabe index (conditional complexity)

    static File getYkcs11Library() {
        String osname = System.getProperty("os.name");
        String arch = System.getProperty("sun.arch.data.model");

        if (osname.contains("Windows")) {
            String programfiles;
            if ("32".equals(arch) && System.getenv("ProgramFiles(x86)") != null) {
                programfiles = System.getenv("ProgramFiles(x86)");
            } else {
                programfiles = System.getenv("ProgramFiles");
            }
            File libykcs11 = new File(programfiles + "/Yubico/Yubico PIV Tool/bin/libykcs11.dll");

            if (!System.getenv("PATH").contains("Yubico PIV Tool\\bin")) {
                System.out.println("WARNING: The YubiKey library path (" + libykcs11.getParentFile().getAbsolutePath().replace('/', '\\') + ") is missing from the PATH environment variable");
            }

            return libykcs11;

        } else if (osname.contains("Mac")) {
            return new File("/usr/local/lib/libykcs11.dylib");

        } else {
            // Linux
            List<String> paths = new ArrayList<>();
            if ("32".equals(arch)) {
                paths.add("/usr/lib/libykcs11.so");
                paths.add("/usr/lib/libykcs11.so.1");
                paths.add("/usr/lib/i386-linux-gnu/libykcs11.so");
                paths.add("/usr/lib/arm-linux-gnueabi/libykcs11.so");
                paths.add("/usr/lib/arm-linux-gnueabihf/libykcs11.so");
            } else {
                paths.add("/usr/lib64/libykcs11.so");
                paths.add("/usr/lib64/libykcs11.so.1");
                paths.add("/usr/lib/x86_64-linux-gnu/libykcs11.so");
                paths.add("/usr/lib/aarch64-linux-gnu/libykcs11.so");
                paths.add("/usr/lib/mips64el-linux-gnuabi64/libykcs11.so");
                paths.add("/usr/lib/riscv64-linux-gnu/libykcs11.so");
            }

            for (String path : paths) {
                File libykcs11 = new File(path);
                if (libykcs11.exists()) {
                    return libykcs11;
                }
            }

            return new File("/usr/local/lib/libykcs11.so");
        }
    }