public void ChecksummRoundtip()
{
var b = new byte[255];
var r = new Random();
r.NextBytes(b);
var c = new Checksum();
b[254] = 0;
c.CalcAndApply(b);
Assert.IsTrue(c.Check(b, 0, b.Length));
}
public JobTypeResult GetJob()
{
Assembly jobAssembly = null;
using (WebClient wc = new WebClient()
{
BaseAddress = this.BaseAddress
})
{
byte[] binary = wc.DownloadData(string.Format("{0}/job", MatchersPath));
string checksum = wc.ResponseHeaders["X-Matcher-Job-Checksum"];
logger.Debug("Downloaded matcher job binary with checksum: {0}", checksum);
if (!Checksum.Check(checksum, binary))
{
throw new InvalidJobException("Checksum is different.");
}
jobAssembly = Assembly.Load(binary);
logger.Info("Successfully loaded job assembly into domain.");
}
return(new JobTypeResult(jobAssembly));
}
public void ChecksummDoubleApply()
{
var b = new Byte[] { 1, 2, 3, 4, 5 };
var c = new Checksum();
try
{
c.CalcAndApply(b);
Assert.Fail("Error expected");
} catch (ArgumentException) { }
b[4] = 0;
c.CalcAndApply(b);
Assert.AreEqual(246, b[4]);
try
{
c.CalcAndApply(b);
Assert.Fail("Error expected");
} catch (ArgumentException) { }
Assert.IsTrue(c.Check(b, 0, b.Length));
}