Example usage for org.eclipse.jgit.util NB encodeInt32

Introduction

In this page you can find the example usage for org.eclipse.jgit.util NB encodeInt32.

Prototype

public static void encodeInt32(final byte[] intbuf, final int offset, int v) 

Source Link

Document

Write a 32 bit integer as a sequence of 4 bytes (network byte order).

Usage

From source file:com.google.gerrit.httpd.raw.CatServlet.java

License:Apache License

private String rand(final HttpServletRequest req, final String suffix) throws UnsupportedEncodingException {
    // Produce a random suffix that is difficult (or nearly impossible)
    // for an attacker to guess in advance. This reduces the risk that
    // an attacker could upload a *.class file and have us send a ZIP
    // that can be invoked through an applet tag in the victim's browser.
    ///*w  w  w .j av a2s. c o m*/
    final MessageDigest md = Constants.newMessageDigest();
    final byte[] buf = new byte[8];

    NB.encodeInt32(buf, 0, req.getRemotePort());
    md.update(req.getRemoteAddr().getBytes("UTF-8"));
    md.update(buf, 0, 4);

    NB.encodeInt64(buf, 0, TimeUtil.nowMs());
    md.update(buf, 0, 8);

    rng.nextBytes(buf);
    md.update(buf, 0, 8);

    return suffix + "-" + ObjectId.fromRaw(md.digest()).name();
}

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