/// <inheritdoc />
public Type Decode(IMessageEnvelope storage)
{
storage = Arguments.EnsureNotNull(storage, nameof(storage));
var header = storage.Headers["AssemblyQualifiedName"];
string aqn;
if (header is byte[] headerBytes)
{
aqn = Encoding.ASCII.GetString(headerBytes);
}
else
{
aqn = (string)header;
}
if (aqn == null)
{
throw new AbbotwareException("Message header is missing Assembly Qualified Name");
}
var type = Type.GetType(aqn, false);
if (type == null)
{
throw AbbotwareException.Create("unable to load assembly containing type info:{0}", aqn);
}
return(type);
}
public static ushort?ToUInt16(char[] buffer, int start, int end)
{
if (buffer == null)
{
return(null);
}
if (start == end)
{
return(null);
}
ushort output = 0;
var basePos = 0;
for (var j = end; j >= start; --j)
{
var digit = buffer[j] - 48;
if (digit > 9 || digit < 0)
{
throw AbbotwareException.Create("Parse Error:buffer[{0}]={1}", j, buffer[j]);
}
output += (ushort)(digit * UInt16MultiplicationTable[basePos]);
++basePos;
}
return(output);
}
/// <summary>
/// Reboot implementation on UNIX Operating System
/// </summary>
public void Reboot()
{
var pathToShutdown = Path.Combine(Path.DirectorySeparatorChar.ToString(CultureInfo.InvariantCulture), "sbin", "shutdown");
var shutdownArgs = string.Format(CultureInfo.InvariantCulture, "{0} -r now", pathToShutdown);
var cfg = new ShellCommandOptions("sudo", shutdownArgs);
using var process = new AbbotwareShellCommand(cfg, NullLogger.Instance);
var result = process.Execute();
// If there is data from standard error then the command
// didn't work because we are not executing as root
if (!result.StartInfo.Started)
{
throw AbbotwareException.Create("Error during shell command {0}", result.ErrorOutput.FirstOrDefault().Message);
}
if (!result.Exited)
{
throw AbbotwareException.Create("Error during shell command {0}", result.ErrorOutput.FirstOrDefault().Message);
}
if (result.ExitCode != 0)
{
throw AbbotwareException.Create("Error during shell command {0}", result.ErrorOutput.FirstOrDefault().Message);
}
}
/// <inheritdoc />
public virtual TMessage Decode <TMessage>(IMessageEnvelope storage)
{
storage = Arguments.EnsureNotNull(storage, nameof(storage));
var type = this.TypeEncoder.Decode(storage);
if (type != null && type != typeof(TMessage))
{
throw AbbotwareException.Create($"Message type Mismatch! Message Contains:{type.AssemblyQualifiedName} Caller Expects:{typeof(TMessage).AssemblyQualifiedName} maybe you should call the non generic decode, or use a MessageGetter / Cosumer that supports callback's per message type");
}
return(this.BinaryEncoder.Decode <TMessage>(storage.Body.ToArray()));
}
/// <summary>
/// Initializes a new instance of the <see cref="Hash"/> class.
/// </summary>
/// <param name="hashType">hash algorithm to use</param>
/// <param name="data">binary data to hash</param>
public Hash(HashAlgorithm hashType, byte[] data)
{
Arguments.NotNull(data, nameof(data));
switch (hashType)
{
case HashAlgorithm.Sha1:
{
#pragma warning disable CA5350 // Do Not Use Weak Cryptographic Algorithms
using var sha1 = SHA1.Create();
#pragma warning restore CA5350 // Do Not Use Weak Cryptographic Algorithms
this.data = sha1.ComputeHash(data);
break;
}
case HashAlgorithm.MD5:
{
#pragma warning disable CA5351 // Do Not Use Broken Cryptographic Algorithms
using var md5 = MD5.Create();
#pragma warning restore CA5351 // Do Not Use Broken Cryptographic Algorithms
this.data = md5.ComputeHash(data);
break;
}
case HashAlgorithm.OnesCompliment:
{
byte val = 0xff;
foreach (var b in data)
{
val = (byte)(val ^ b);
}
this.data = new byte[1]
{
val,
};
break;
}
default:
{
throw AbbotwareException.Create("Unexpected Switch Case:{0} Should not reach this code", hashType);
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Hash"/> class.
/// </summary>
/// <param name="hashType">hash algorithm to use</param>
/// <param name="data">binary data to hash</param>
/// <param name="key">binary key to use in hash algorithm</param>
public Hash(HashAlgorithmWithKey hashType, byte[] data, byte[] key)
{
Arguments.NotNull(data, nameof(data));
Arguments.NotNull(key, nameof(key));
switch (hashType)
{
case HashAlgorithmWithKey.HmacSha256:
{
using var h = HMAC.Create("System.Security.Cryptography.HMACSHA256") !;
h.Key = key;
this.data = h.ComputeHash(data);
break;
}
case HashAlgorithmWithKey.HmacOnesCompliment:
{
byte val = 0;
foreach (var b in key)
{
val = (byte)(val ^ b);
}
foreach (var b in data)
{
val = (byte)(val ^ b);
}
this.data = new byte[1] {
val
};
break;
}
default:
{
throw AbbotwareException.Create("Unexpected Switch Case:{0} Should not reach this code", hashType);
}
}
}
/// <summary>
/// callback for Kernel32's SetConsoleCtrlHandler
/// </summary>
/// <param name="ctrlType">the control event received</param>
/// <returns>true if the callback handled the event</returns>
private bool OnConsoleCtrlEvent(ConsoleCtrlType ctrlType)
{
switch (ctrlType)
{
case ConsoleCtrlType.CtrlCEvent:
case ConsoleCtrlType.CtrlBreakEvent:
case ConsoleCtrlType.CloseEvent:
case ConsoleCtrlType.LogOffEvent:
case ConsoleCtrlType.ShutdownEvent:
{
this.ShutdownSignal.TrySetResult(true);
return(false);
}
default:
{
throw AbbotwareException.Create("Unexpected Shutdown Event Recieved: {0} Should not reach this code", ctrlType);
}
}
}
/// <inheritdoc />
public Type Decode(IMessageEnvelope storage)
{
storage = Arguments.EnsureNotNull(storage, nameof(storage));
if (string.IsNullOrWhiteSpace(storage.PublishProperties.RoutingKey))
{
throw new AbbotwareException("Topic is empty, can't resolve type info");
}
var typeName = storage.PublishProperties.RoutingKey;
var type = Type.GetType(typeName, false);
if (type == null)
{
throw AbbotwareException.Create("unable to load assembly containing type:{0}", typeName);
}
return(type);
}
public void Exceptions()
{
var a1 = new AbbotwareException();
Assert.IsNotNull(a1);
var a2 = new AbbotwareException("test");
Assert.IsNotNull(a2);
var a3 = AbbotwareException.Create(new Exception(), "test");
Assert.IsNotNull(a3);
var a4 = AbbotwareException.Create("test {0}", "test");
Assert.AreEqual("test test", a4.Message);
var a5 = AbbotwareException.Create(new Exception(), "test {0}", "test");
Assert.AreEqual("test test", a5.Message);
}
