/// <summary>
/// Creates instance of identity client from snapshot.
/// </summary>
/// <param name="Snapshot">Identity client snapshot.</param>
/// <param name="Images">Hexadecimal image data mapping to SHA256 hash.</param>
/// <param name="ProfileServer">Profile server that hosts identity's profile.</param>
/// <returns>New identity client instance.</returns>
public static IdentityClient CreateFromSnapshot(IdentitySnapshot Snapshot, Dictionary <string, string> Images, ProfileServer ProfileServer)
{
IdentityClient res = new IdentityClient();
res.challenge = Crypto.FromHex(Snapshot.Challenge);
res.clientChallenge = Crypto.FromHex(Snapshot.ClientChallenge);
res.keys = new KeysEd25519();
res.keys.ExpandedPrivateKeyHex = Snapshot.ExpandedPrivateKeyHex;
res.keys.PublicKeyHex = Snapshot.PublicKeyHex;
res.keys.PrivateKeyHex = Snapshot.PrivateKeyHex;
res.keys.ExpandedPrivateKey = Crypto.FromHex(res.keys.ExpandedPrivateKeyHex);
res.keys.PublicKey = Crypto.FromHex(res.keys.PublicKeyHex);
res.keys.PrivateKey = Crypto.FromHex(res.keys.PrivateKeyHex);
res.extraData = Snapshot.ExtraData;
res.hostingActive = Snapshot.HostingActive;
res.identityId = Crypto.FromHex(Snapshot.IdentityId);
res.imageFileName = Snapshot.ImageFileName != null?Path.Combine(CommandProcessor.ImagesDirectory, Snapshot.ImageFileName) : null;
res.location = new GpsLocation(Snapshot.LocationLatitude, Snapshot.LocationLongitude);
res.name = Snapshot.Name;
res.profileInitialized = Snapshot.ProfileInitialized;
res.profileImage = Snapshot.ProfileImageHash != null?Crypto.FromHex(Images[Snapshot.ProfileImageHash]) : null;
res.thumbnailImage = Snapshot.ThumbnailImageHash != null?Crypto.FromHex(Images[Snapshot.ThumbnailImageHash]) : null;
res.profileServerKey = Crypto.FromHex(Snapshot.ProfileServerKey);
res.type = Snapshot.Type;
res.version = Snapshot.Version;
res.profileServer = ProfileServer;
res.log = new PrefixLogger("ProfileServerSimulator.IdentityClient", "[" + res.Name + "] ");
res.messageBuilder = new MessageBuilder(0, new List <SemVer>()
{
SemVer.V100
}, res.keys);
res.InitializeTcpClient();
return(res);
}
/// <summary>
/// Creates identity client snapshot.
/// </summary>
/// <returns>Identity client snapshot.</returns>
public IdentitySnapshot CreateSnapshot()
{
IdentitySnapshot res = new IdentitySnapshot()
{
Challenge = Crypto.ToHex(this.challenge),
ClientChallenge = Crypto.ToHex(this.clientChallenge),
ExpandedPrivateKeyHex = this.keys.ExpandedPrivateKeyHex,
ExtraData = this.extraData,
HostingActive = this.hostingActive,
IdentityId = Crypto.ToHex(this.identityId),
ImageFileName = Path.GetFileName(imageFileName),
LocationLatitude = this.location.Latitude,
LocationLongitude = this.location.Longitude,
Name = this.name,
PrivateKeyHex = this.keys.PrivateKeyHex,
ProfileInitialized = this.profileInitialized,
ProfileImageHash = null,
ProfileServerKey = Crypto.ToHex(this.profileServerKey),
ProfileServerName = this.profileServer.Name,
PublicKeyHex = this.keys.PublicKeyHex,
ThumbnailImageHash = null,
Type = this.type,
Version = this.version
};
if (this.profileImage != null)
{
byte[] profileImageHash = Crypto.Sha256(profileImage);
string profileImageHashHex = Crypto.ToHex(profileImageHash);
res.ProfileImageHash = profileImageHashHex;
}
if (this.thumbnailImage != null)
{
byte[] thumbnailImageHash = Crypto.Sha256(thumbnailImage);
string thumbnailImageHashHex = Crypto.ToHex(thumbnailImageHash);
res.ThumbnailImageHash = thumbnailImageHashHex;
}
return(res);
}
/// <summary>
/// Stops all running profile servers and takes snapshot of the simulation.
/// <para>All profile servers are expected to be stopped when this method is called.</para>
/// </summary>
/// <param name="RunningServerNames">List of servers that were running before the snapshot was taken.</param>
/// <param name="ProfileServers">List of simulation profile servers.</param>
/// <param name="IdentityClients">List of simulation identities.</param>
/// <returns>true if the function succeeds, false otherwise.</returns>
public bool Take(HashSet <string> RunningServerNames, Dictionary <string, ProfileServer> ProfileServers, Dictionary <string, IdentityClient> IdentityClients)
{
log.Trace("()");
foreach (ProfileServer server in ProfileServers.Values)
{
ProfileServerSnapshot serverSnapshot = server.CreateSnapshot();
serverSnapshot.IsRunning = RunningServerNames.Contains(server.Name);
this.ProfileServers.Add(serverSnapshot);
}
foreach (IdentityClient identity in IdentityClients.Values)
{
IdentitySnapshot identitySnapshot = identity.CreateSnapshot();
if (identitySnapshot.ProfileImageHash != null)
{
if (!this.Images.ContainsKey(identitySnapshot.ProfileImageHash))
{
string imageDataHex = Crypto.ToHex(identity.ProfileImage);
this.Images.Add(identitySnapshot.ProfileImageHash, imageDataHex);
}
}
if (identitySnapshot.ThumbnailImageHash != null)
{
if (!this.Images.ContainsKey(identitySnapshot.ThumbnailImageHash))
{
string imageDataHex = Crypto.ToHex(identity.ThumbnailImage);
this.Images.Add(identitySnapshot.ThumbnailImageHash, imageDataHex);
}
}
this.Identities.Add(identitySnapshot);
}
bool error = false;
try
{
if (Directory.Exists(snapshotDirectory))
{
Directory.Delete(snapshotDirectory, true);
}
Directory.CreateDirectory(snapshotDirectory);
}
catch (Exception e)
{
log.Error("Exception occurred while trying to delete and recreate '{0}': {1}", snapshotDirectory, e.ToString());
error = true;
}
if (!error)
{
try
{
string serializedProfileServers = JsonConvert.SerializeObject(this.ProfileServers, Formatting.Indented);
string serializedIdentities = JsonConvert.SerializeObject(this.Identities, Formatting.Indented);
string serializedImages = JsonConvert.SerializeObject(this.Images, Formatting.Indented);
File.WriteAllText(profileServersFile, serializedProfileServers);
File.WriteAllText(identitiesFile, serializedIdentities);
File.WriteAllText(imagesFile, serializedImages);
}
catch (Exception e)
{
log.Error("Exception occurred while trying to save serialized simulation information: {0}", e.ToString());
error = true;
}
}
if (!error)
{
foreach (ProfileServer server in ProfileServers.Values)
{
string serverInstanceDirectory = server.GetInstanceDirectoryName();
string snapshotInstanceDirectory = Path.Combine(new string[] { snapshotDirectory, "bin", server.Name });
if (!Helpers.DirectoryCopy(serverInstanceDirectory, snapshotInstanceDirectory, true, new string[] { "logs", "tmp" }))
{
log.Error("Unable to copy files from directory '{0}' to '{1}'.", serverInstanceDirectory, snapshotInstanceDirectory);
error = true;
break;
}
string logsDirectory = Path.Combine(snapshotInstanceDirectory, "Logs");
try
{
if (Directory.Exists(logsDirectory))
{
Directory.Delete(logsDirectory, true);
}
}
catch (Exception e)
{
log.Error("Exception occurred while trying to delete directory '{0}': {1}", logsDirectory, e.ToString());
error = true;
break;
}
}
}
bool res = !error;
log.Trace("(-):{0}", res);
return(res);
}