public async Task <bool> Handle(DataAccessRequest <IEnvironment> message, IOutboundPort <GenericDataResponse <IEnvironment> > outputPort)
        {
            switch (message.Strategy)
            {
            case DataAccessRequest <IEnvironment> .AcquisitionStrategy.All:
                // Acquire all associated environments, null-cascade throughout
                var user = await _userStore.GetUserById(message.UserId);

                if (user != null)
                {
                    await _userStore.LoadEnvironments(user);
                }
                var envs = user?.Environments;

                foreach (var env in envs)
                {
                    await _envStore.LoadControllerFor(env);

                    await _envStore.LoadPetFor(env);
                }

                // Compose a response.
                var response = new GenericDataResponse <IEnvironment>
                {
                    Result = envs?.ToList()
                };

                outputPort.Handle(response);
                return(envs != null);

            default:
                throw new ArgumentOutOfRangeException(nameof(message.Strategy));
            }
        }
示例#2
0
        public async Task <bool> Handle(MigratePetRequest message, IOutboundPort <BlankResponse> outputPort)
        {
            // load user - verify they have access to both env and pet specified.
            var user = await _userStore.GetUserById(message.UserId);

            if (user == null)
            {
                return(false);
            }

            await _userStore.LoadEnvironments(user);

            await _userStore.LoadPets(user);

            var canProceed =
                user.Pets.Select(p => p.Id).Contains(message.PetId) &&
                user.Environments.Select(e => e.Id).Contains(message.EnvId);

            if (!canProceed)
            {
                return(false);
            }

            var pet       = user.Pets.First(p => p.Id == message.PetId);
            var targetEnv = user.Environments.First(env => env.Id == message.EnvId);
            await _petStore.MigratePet(pet, targetEnv);

            return(true);
        }
示例#3
0
        public async Task <bool> Handle(CreatePetRequest message, IOutboundPort <NewEntityResponse <int> > outputPort)
        {
            var user = await _userStore.GetUserById(message.User);

            if (user == null)
            {
                return(false);
            }

            // Compose a new Pet instance:
            var pet = _entityFactory.GetPetBuilder()
                      .SetName(message.Name)
                      .SetSpecies(await _store.GetSpeciesById(message.SpeciesType))
                      .SetMorph(message.Morph)
                      .SetOwner(user)
                      .Build();

            var id = await _store.Create(pet);

            var response = new NewEntityResponse <int> {
                Id = id
            };

            outputPort.Handle(response);
            return(true);
        }
示例#4
0
        public async Task <bool> Handle(CreateSpeciesRequest message, IOutboundPort <NewEntityResponse <int> > outputPort)
        {
            var species = _entityFactory.GetSpeciesBuilder()
                          .SetName(message.Name)
                          .SetScientificName(message.ScientificName)
                          .SetLatitude(message.Latitude)
                          .SetLongitude(message.Longitude)
                          .Build();

            // validate some stuff:
            if (string.IsNullOrWhiteSpace(species.Name) ||
                string.IsNullOrEmpty(species.ScientificName) ||
                Math.Abs(species.DefaultLatitude) > 90.0 ||
                Math.Abs(species.DefaultLongitude) > 180.0)
            {
                return(false);
            }

            var response = new NewEntityResponse <int>
            {
                Id = await _petStore.Create(species)
            };

            outputPort.Handle(response);
            return(true);
        }
        public async Task <bool> Handle(DataAccessRequest <ISpecies> message, IOutboundPort <GenericDataResponse <ISpecies> > outputPort)
        {
            // no need to validate user - species data not user specific.
            var response = new GenericDataResponse <ISpecies>();

            switch (message.Strategy)
            {
            case DataAccessRequest <ISpecies> .AcquisitionStrategy.All:
                response.Result = await _petStore.GetSpeciesInfo();

                break;

            case DataAccessRequest <ISpecies> .AcquisitionStrategy.Range:
                response.Result = (await _petStore.GetSpeciesInfo())
                                  .Where(message.SelectionPredicate)
                                  .ToArray();
                break;

            case DataAccessRequest <ISpecies> .AcquisitionStrategy.Single:
                response.Result = new[]
                { (await _petStore.GetSpeciesInfo()).FirstOrDefault(message.SelectionPredicate) };
                break;

            default:
                throw new ArgumentOutOfRangeException(nameof(message));
            }

            outputPort.Handle(response);
            return(true);
        }
示例#6
0
        public async Task <bool> Handle(ModifyUserRolesRequest message, IOutboundPort <BlankResponse> outputPort)
        {
            // fetch the user instance.
            var user = await _userStore.GetUserById(message.UserId);

            if (user == null)
            {
                return(false);
            }

            switch (message.Mode)
            {
            case ModifyUserRolesRequest.ModificationMode.Add:
                await _userStore.AddToRoles(user, message.DesiredRoles);

                return(true);

            case ModifyUserRolesRequest.ModificationMode.Set:
                await _userStore.RemoveRolesFromUser(user);

                await _userStore.AddToRoles(user, message.DesiredRoles);

                return(true);

            default:
                return(false);
            }
        }
        public async Task <bool> Handle(DataAccessRequest <IEnvDataSample> message, IOutboundPort <GenericDataResponse <IEnvDataSample> > outputPort)
        {
            // verify the user exists:
            var user = await _userStore.GetUserById(message.UserId);

            if (user == null)
            {
                return(false);
            }

            await _userStore.LoadEnvironments(user);

            var response = new GenericDataResponse <IEnvDataSample>();

            var samples = new List <IEnvDataSample>();

            foreach (var env in user.Environments)
            {
                await _environmentStore.LoadSamplesFor(env);

                switch (message.Strategy)
                {
                case DataAccessRequest <IEnvDataSample> .AcquisitionStrategy.All:
                    samples.AddRange(env.EnvDataSamples);
                    break;

                case DataAccessRequest <IEnvDataSample> .AcquisitionStrategy.Range:
                    samples.AddRange(env.EnvDataSamples.Where(message.SelectionPredicate));
                    break;

                case DataAccessRequest <IEnvDataSample> .AcquisitionStrategy.Single:
                    // this one is a bit different, if we find a match amongst any environments,
                    // shortcut a return after processing it.
                    var sample = env.EnvDataSamples.FirstOrDefault(message.SelectionPredicate);
                    if (sample != null)
                    {
                        response.Result = new[] { sample };
                        outputPort.Handle(response);
                        return(true);
                    }
                    break;

                default:
                    throw new ArgumentOutOfRangeException(nameof(message), "Strategy not recognized.");
                }
            }

            // in the event of strategy being single, samples will be empty, which is a suitable response.
            response.Result = samples;
            outputPort.Handle(response);
            return(true);
        }
示例#8
0
        public async Task <bool> Handle(SampleAccessRequest message, IOutboundPort <GenericDataResponse <IEnvDataSample> > outputPort)
        {
            var response = new GenericDataResponse <IEnvDataSample>();
            var user     = await _userStore.GetUserById(message.UserId);

            switch (message.Selector)
            {
            case SampleAccessRequest.SelectionCriteria.User:
                if (user == null)
                {
                    return(false);
                }

                response.Result = await _sampleStore.GetRangeByUser(user, message.RangeStart, message.RangeEnd);

                break;

            case SampleAccessRequest.SelectionCriteria.Environment:
                // ensure the user has access to see this environment's data:
                await _userStore.LoadEnvironments(user);

                var env = user.Environments.FirstOrDefault(e => e.Id == message.EnvId);
                if (env == null)
                {
                    return(false);                 // env doesn't exist or user can't access it.
                }
                response.Result = await _sampleStore.GetRangeByEnv(env, message.RangeStart, message.RangeEnd);

                break;

            case SampleAccessRequest.SelectionCriteria.Pet:
                // ensure the user owns the pet in question:
                await _userStore.LoadPets(user);

                var pet = user.Pets.FirstOrDefault(p => p.Id == message.PetId);
                if (pet == null)
                {
                    return(false);                 // pet doesn't exist or user can't access its data.
                }
                response.Result = await _sampleStore.GetRangeByPet(pet, message.RangeStart, message.RangeEnd);

                break;

            default:
                throw new ArgumentException("Invalid selection mode", nameof(message));
            }

            outputPort.Handle(response);
            return(true);
        }
示例#9
0
        public async Task <bool> Handle(BlobStorageRequest message, IOutboundPort <BlobUriResponse> outputPort)
        {
            // Trust user guid? Ideally only authenticated controllers are getting here.
            if (message.UserId == Guid.Empty)
            {
                return(false);
            }

            // compose blob name if necessary
            if (string.IsNullOrWhiteSpace(message.BlobName) && message.Mode == BlobStorageRequest.Operation.Write)
            {
                message.BlobName = $"{message.UserId}_{DateTime.UtcNow}_{Guid.NewGuid()}";
            }

            //  can't read a non-existent blob.
            if (string.IsNullOrWhiteSpace(message.BlobName))
            {
                return(false);
            }

            if (message.Mode == BlobStorageRequest.Operation.Write)
            {
                if (message.Content == null)
                {
                    return(false);                         // can't write with no content.
                }
                await _blobStore.WriteBlob(message.Category, message.BlobName, null, message.Content);
            }

            var uri = await _blobStore.GetBlobReadUri(message.Category, message.BlobName, 60, 60);

            // call through to blob store method.
            var response = new BlobUriResponse
            {
                Uri       = uri,
                ExpiresIn = 60
            };

            // send back response
            outputPort.Handle(response);
            return(true);
        }
示例#10
0
        public async Task <bool> Handle(LoginRequest message, IOutboundPort <LoginResponse> outputPort)
        {
            var user = await _userStore.GetUserByName(message.Username);

            if (user == null ||
                !await _userStore.CheckPassword(user, message.Password))
            {
                return(false);
            }

            var roles = await _userStore.GetRoles(user);

            var roleClaims = new List <Claim>();

            roleClaims.AddRange(roles.Select(r => new Claim(ClaimTypes.Role, r)));

            var identity = _claimsComposer.ComposeIdentity(user, roleClaims);
            var response = new LoginResponse
            {
                UserName    = user.Name,
                AccessToken = new AccessToken
                {
                    Token     = _minter.Mint(identity, TokenType.UserAccess),
                    ExpiresIn = _minter.Options.TokenLifespan,
                },
                RefreshToken = new RefreshToken
                {
                    Token          = _minter.Mint(identity, TokenType.Refresh),
                    ExpiresAt      = (DateTime.UtcNow + TimeSpan.FromSeconds(_minter.Options.RefreshTokenLifespan)),
                    IssuedTo       = user.Guid,
                    IssuedBy       = Dns.GetHostName(),
                    AccessCapacity = RoleValues.User
                }
            };

            // Push the new refresh token to data store
            user.RefreshTokens.Add(response.RefreshToken);
            await _userStore.UpdateUser(user);

            outputPort.Handle(response);
            return(true);
        }
        public async Task <bool> Handle(DataAccessRequest <IController> message, IOutboundPort <GenericDataResponse <IController> > outputPort)
        {
            // Load user, verify they exist.
            var user = await _userStore.GetUserById(message.UserId);

            if (user == null)
            {
                return(false);
            }

            // pipe on back through the port.
            var response = new GenericDataResponse <IController>
            {
                // Load controllers (Note: userStore impls must include controller.Environments relation here)
                // associated to that user.
                Result = await _userStore.LoadControllers(user)
            };

            outputPort.Handle(response);
            return(true);
        }
示例#12
0
        public async Task <bool> Handle(DataAccessRequest <IPet> message, IOutboundPort <GenericDataResponse <IPet> > outputPort)
        {
            var user = await _userStore.GetUserById(message.UserId);

            if (user == null)
            {
                return(false);
            }

            await _userStore.LoadPets(user);

            // Load species data - its trivial to include.
            foreach (var pet in user.Pets)
            {
                await _petStore.LoadSpecies(pet);
            }

            var response = new GenericDataResponse <IPet>();

            switch (message.Strategy)
            {
            case DataAccessRequest <IPet> .AcquisitionStrategy.All:
                response.Result = user.Pets.ToImmutableList();
                outputPort.Handle(response);
                return(true);

            case DataAccessRequest <IPet> .AcquisitionStrategy.Range:
                response.Result = user.Pets.Where(message.SelectionPredicate).ToImmutableList();
                outputPort.Handle(response);
                return(true);

            case DataAccessRequest <IPet> .AcquisitionStrategy.Single:
                response.Result = new List <IPet>(new[] { user.Pets.FirstOrDefault(message.SelectionPredicate) });
                outputPort.Handle(response);
                return(true);

            default:
                throw new ArgumentOutOfRangeException(nameof(message), "Unrecognized strategy");
            }
        }
示例#13
0
        public async Task <bool> Handle(NewSampleRequest message, IOutboundPort <BlankResponse> outputPort)
        {
            // Verify that the specified user maps to the sample's environment. (e.g., can this user add samples to that
            // environment?)
            var user = await _userStore.GetUserById(message.UserId);

            if (user != null)
            {
                await _userStore.LoadEnvironments(user);
            }

            var env = user?.Environments.FirstOrDefault(e => e.Id == message.Sample.Environment);

            if (env == null)
            {
                return(false);             // environment not owned by user or user not found.
            }
            await _envStore.LoadPetFor(env);

            // Fill in EnvDataSample entity instance.
            var sample = _entityFactory.GetSampleBuilder()
                         .AddHotGlassMeasurement(message.Sample.HotGlass ?? 0)
                         .AddHotMatMeasurement(message.Sample.HotMat ?? 0)
                         .AddMidGlassMeasurement(message.Sample.MidGlass ?? 0)
                         .AddColdGlassMeasurement(message.Sample.ColdGlass ?? 0)
                         .AddColdMatMeasurement(message.Sample.ColdMat ?? 0)
                         .SetInhabitant(env.Inhabitant)
                         .SetEnvironment(env)
                         .Build();

            await _envStore.AddSample(sample);

            if (env.Inhabitant != null)
            {
                await _petStore.UpdateLatestSample(env.Inhabitant, sample);
            }

            return(true);
        }
示例#14
0
        public async Task <bool> Handle(ProviderGrantRequest message, IOutboundPort <LoginResponse> outputPort)
        {
            // Verify the user is valid
            var user = await _userStore.GetUserById(message.OnBehalfOf);

            if (user == null)
            {
                return(false);
            }

            // TODO: verify - in some manner - that this action request is valid beyond 'has a real user'

            // Mint a data access token.
            var response = new LoginResponse
            {
                UserName    = null, // not necessary for Daemons
                AccessToken = new AccessToken
                {
                    Token     = _minter.Mint(_claimsComposer.ComposeIdentity(user), TokenType.DaemonAccess),
                    ExpiresIn = _minter.Options.TokenLifespan
                },
                RefreshToken = new RefreshToken
                {
                    Token          = _minter.Mint(_claimsComposer.ComposeIdentity(user), TokenType.Refresh),
                    ExpiresAt      = (DateTime.UtcNow + TimeSpan.FromSeconds(_minter.Options.RefreshTokenLifespan)),
                    IssuedTo       = user.Guid,
                    IssuedBy       = Dns.GetHostName(),
                    AccessCapacity = AccessLevelValues.Daemon
                }
            };

            user.RefreshTokens.Add(response.RefreshToken);
            await _userStore.UpdateUser(user);

            // signal success
            outputPort.Handle(response);
            return(true);
        }
示例#15
0
        public async Task <bool> Handle(CreateUserRequest message, IOutboundPort <NewUserResponse> outputPort)
        {
            // ensure username, email, are unused.
            if (await _userStore.GetUserByName(message.UserName) != null)
            {
                return(false);
            }

            // create a new entity instance.
            var user = _entityFactory.GetUserBuilder()
                       .AddName(message.UserName)
                       .AddEmail(message.Email)
                       .Build();

            var guid = await _userStore.CreateUser(user, message.Password);

            // use backing store to persist.
            NewUserResponse response = new NewUserResponse();

            response.Id = (guid == Guid.Empty) ? null : guid.ToString();

            outputPort.Handle(response);
            return(true);
        }
        public async Task <bool> Handle(RegisterEnvironmentRequest message, IOutboundPort <NewEntityResponse <Guid> > outputPort)
        {
            var response = new NewEntityResponse <Guid>();
            var user     = await _userStore.GetUserById(message.Owner);

            if (user != null)
            {
                await _userStore.LoadEnvironments(user);
            }

            switch (message.CreateMode)
            {
            case RegisterEnvironmentRequest.Mode.Touch:
                // Check if user already has it:
                var env = user?.Environments?.FirstOrDefault(e => e.Id == message.MfgId);

                // check if we have this environment already - and that its associated to user
                // if not, we'll fall through to Create logic where we'll attempt creating it - erroring if already
                // present.
                if (env != null)
                {
                    // This next line should be impossible - its just here to keep linting happy.
                    if (env.Id == null)
                    {
                        throw new Exception("Malformed input on this entity");
                    }

                    // we already have it and its associated to user.
                    // should be same as message.MfgId
                    response.Id = env.Id.Value;
                    break;
                }
                else if (user == null)
                {
                    return(false);                       // nothing to do, this is a mis-use.
                }
                else
                {
                    // Apparently we gotta explicitly mimic fallthrough...
                    goto case RegisterEnvironmentRequest.Mode.Create;
                }

            case RegisterEnvironmentRequest.Mode.Create:
                // Environments need an initial user:
                if (user == null)
                {
                    return(false);
                }

                // check if it exists (blind firing a create call
                // may be a pretty hard crash.)
                var searchResult = await _envStore.GetById(message.MfgId);

                if (searchResult != null)
                {
                    return(false);
                }

                // Compose a new entry entity
                var envEntity = _entityFactory.GetEnvironmentBuilder()
                                .SetId(message.MfgId)
                                .SetDescription(message.Description)
                                .SetModelInfo(message.Model)
                                .Build();

                response.Id = await _envStore.Create(envEntity);

                // Associate to user:
                await _userStore.AddAssociationToEnv(user, envEntity);

                break;

            default:
                throw new ArgumentOutOfRangeException(nameof(message));
            }

            outputPort.Handle(response);
            return(true);
        }
示例#17
0
        public async Task <bool> Handle(NodeUpdateRequest message, IOutboundPort <GenericDataResponse <IController> > outputPort)
        {
            var user = await _userStore.GetUserById(message.UserId);

            if (user == null)
            {
                return(false);              // specified user doesn't exist, do nothing on their behalf.
            }
            var controller = await _controllerStore.GetById(message.ControllerId);

            if (message.Operation == NodeUpdateRequest.Mode.Create)
            {
                // if the controller exists - then it was owned by another user
                // if they haven't relinquished it then we don't want to re-author its owner.
                if (controller?.Owner != null)
                {
                    if (controller.Owner != user)
                    {
                        return(false);
                    }
                }


                // add controller (or a new instance) to the user:
                controller ??= _entityFactory.GetControllerBuilder()
                .SetId(message.ControllerId)
                .Build();

                await _userStore.AddAssociationToController(user, controller);
            }
            else if (message.Operation == NodeUpdateRequest.Mode.PeerUpdate)
            {
                if (controller == null)
                {
                    return(false);
                }

                // call through to RegisterEnvironmentUseCase?
                foreach (Guid envId in message.PeerIds)
                {
                    // try loading the environment, update its association
                    var env = await _environmentStore.GetById(envId);

                    // Behavior here is TBD. Should environment devices just be 'whoever has posession it'
                    // if so, should existing data associated to that environment be dumped?
                    // if not, hos should we permit giving them out? etc.
                    // Point is, I have some system-level planning to do here, but I need *something*
                    // here for the time being:
                    if (env == null)
                    {
                        continue;
                    }
                    if (env.Controller != controller)
                    {
                        await _controllerStore.ReParentEnvironment(controller, env);
                    }

                    // for now: not creating new Env entities in this use case. Expect it to be
                    // handled separately
                }
            }

            var response = new GenericDataResponse <IController>
            {
                Result = new[] { controller }
            };

            outputPort.Handle(response);
            return(true);
        }
示例#18
0
        public async Task <bool> Handle(PetImageRequest message, IOutboundPort <BlobUriResponse> outputPort)
        {
            // verify that the user has access to the specified pet:
            var user = await _userStore.GetUserById(message.UserId);

            if (user == null)
            {
                return(false);
            }

            await _userStore.LoadPets(user);

            var pet = user.Pets.FirstOrDefault(p => p.Id == message.PetId);

            if (pet == null)
            {
                return(false);
            }

            // All pet images go to the image container/category.
            const string category = Constants.StorageCategories.Images;
            string       blobName; // set based on execution path.

            if (message.Update)
            {
                // Generate a new blob name (always) for pet images - ensures no conflict.
                blobName = $"{message.UserId}_{message.PetId}_{Guid.NewGuid()}";

                // upload the blob to storage.
                await _blobStore.WriteBlob(category, blobName, message.MimeType, message.Content);

                // associate a new blob entry to the pet
                var entity = _entityFactory.GetBlobRecordBuilder()
                             .SetCategory(category)
                             .SetName(blobName)
                             .Build();

                await _petStore.UpdateImage(pet, entity);
            }
            else
            {
                // load the current record from pet:
                await _petStore.LoadImageRecord(pet);

                blobName = pet.ProfileImage?.BlobName;
            }

            // check that there exists a blob associated to pet by this point.
            if (blobName == null)
            {
                return(false);
            }

            var response = new BlobUriResponse
            {
                Uri       = await _blobStore.GetBlobReadUri(category, blobName, 10, 30),
                ExpiresIn = 10
            };

            outputPort.Handle(response);
            return(true);
        }
示例#19
0
        public async Task <bool> Handle(TokenExchangeRequest message, IOutboundPort <LoginResponse> outputPort)
        {
            // Verify user exists.
            var user = await _store.GetUserById(Guid.Parse(message.UserId));

            if (user == null)
            {
                return(false);
            }

            await _store.LoadRefreshTokens(user);

            // Verify refresh token specified by message is associated to user.
            var persistedToken = user.RefreshTokens
                                 .FirstOrDefault(rt => String.Compare(rt.Token, message.EncodedRefreshToken, StringComparison.Ordinal) == 0);

            if (persistedToken == null)
            {
                return(false);
            }

            var roles = await _store.GetRoles(user);

            var roleClaims = new List <Claim>();

            roleClaims.AddRange(roles.Select(r => new Claim(ClaimTypes.Role, r)));

            // Mint a new access token based on the access capacity specified by the refresh token.
            string mintedAccessToken;

            if (persistedToken.AccessCapacity == AccessLevelValues.User)
            {
                mintedAccessToken = _minter.Mint(_claimsComposer.ComposeIdentity(user, roleClaims), TokenType.UserAccess);
            }
            else if (persistedToken.AccessCapacity == AccessLevelValues.Daemon)
            {
                mintedAccessToken = _minter.Mint(_claimsComposer.ComposeIdentity(user), TokenType.DaemonAccess);
            }
            else
            {
                // Malformed?
                return(false);
            }

            // if a new refresh token is needed, mint a new one.
            var mintedRefreshToken = message.EncodedRefreshToken;

            // compose and submit response.
            var response = new LoginResponse
            {
                UserName    = (persistedToken.AccessCapacity == AccessLevelValues.User) ? user.Name: null,
                AccessToken = new AccessToken
                {
                    Token     = mintedAccessToken,
                    ExpiresIn = _minter.Options.TokenLifespan,
                },
                RefreshToken = new RefreshToken
                {
                    Token     = mintedRefreshToken,
                    ExpiresAt = (DateTime.UtcNow + TimeSpan.FromSeconds(_minter.Options.RefreshTokenLifespan)),
                    IssuedTo  = user.Guid,
                    IssuedBy  = Dns.GetHostName()
                }
            };

            // TODO: if a new refresh token was issued, then push it to data store.

            outputPort.Handle(response);
            return(true);
        }