Examples with HttpResponder co.cask.http.HttpResponder used on opensource projects

Example 1 with HttpResponder

use of co.cask.http.HttpResponder in project cdap by caskdata.

the class AppLifecycleHttpHandler method deployApplication.

private BodyConsumer deployApplication(final HttpResponder responder, final NamespaceId namespace, final String appId, final String archiveName, final String configString, @Nullable final String ownerPrincipal, final boolean updateSchedules) throws IOException {
    Id.Namespace idNamespace = namespace.toId();
    Location namespaceHomeLocation = namespacedLocationFactory.get(namespace);
    if (!namespaceHomeLocation.exists()) {
        String msg = String.format("Home directory %s for namespace %s not found", namespaceHomeLocation, namespace.getNamespace());
        LOG.error(msg);
        responder.sendString(HttpResponseStatus.NOT_FOUND, msg);
        return null;
    }
    if (archiveName == null || archiveName.isEmpty()) {
        responder.sendString(HttpResponseStatus.BAD_REQUEST, String.format("%s header not present. Please include the header and set its value to the jar name.", ARCHIVE_NAME_HEADER), ImmutableMultimap.of(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.CLOSE));
        return null;
    }
    // TODO: (CDAP-3258) error handling needs to be refactored here, should be able just to throw the exception,
    // but the caller catches all exceptions and responds with a 500
    final Id.Artifact artifactId;
    try {
        artifactId = Id.Artifact.parse(idNamespace, archiveName);
    } catch (IllegalArgumentException e) {
        responder.sendString(HttpResponseStatus.BAD_REQUEST, e.getMessage());
        return null;
    }
    KerberosPrincipalId ownerPrincipalId = ownerPrincipal == null ? null : new KerberosPrincipalId(ownerPrincipal);
    // Store uploaded content to a local temp file
    String namespacesDir = configuration.get(Constants.Namespace.NAMESPACES_DIR);
    File localDataDir = new File(configuration.get(Constants.CFG_LOCAL_DATA_DIR));
    File namespaceBase = new File(localDataDir, namespacesDir);
    File tempDir = new File(new File(namespaceBase, namespace.getNamespace()), configuration.get(Constants.AppFabric.TEMP_DIR)).getAbsoluteFile();
    if (!DirUtils.mkdirs(tempDir)) {
        throw new IOException("Could not create temporary directory at: " + tempDir);
    }
    final KerberosPrincipalId finalOwnerPrincipalId = ownerPrincipalId;
    return new AbstractBodyConsumer(File.createTempFile("app-", ".jar", tempDir)) {

        @Override
        protected void onFinish(HttpResponder responder, File uploadedFile) {
            try {
                // deploy app
                ApplicationWithPrograms app = applicationLifecycleService.deployAppAndArtifact(namespace, appId, artifactId, uploadedFile, configString, finalOwnerPrincipalId, createProgramTerminator(), updateSchedules);
                LOG.info("Successfully deployed app {} in namespace {} from artifact {} with configuration {} and " + "principal {}", app.getApplicationId().getApplication(), namespace.getNamespace(), artifactId, configString, finalOwnerPrincipalId);
                responder.sendString(HttpResponseStatus.OK, String.format("Successfully deployed app %s", app.getApplicationId().getApplication()));
            } catch (InvalidArtifactException e) {
                responder.sendString(HttpResponseStatus.BAD_REQUEST, e.getMessage());
            } catch (ArtifactAlreadyExistsException e) {
                responder.sendString(HttpResponseStatus.CONFLICT, String.format("Artifact '%s' already exists. Please use the API that creates an application from an existing artifact. " + "If you are trying to replace the artifact, please delete it and then try again.", artifactId));
            } catch (WriteConflictException e) {
                // don't really expect this to happen. It means after multiple retries there were still write conflicts.
                LOG.warn("Write conflict while trying to add artifact {}.", artifactId, e);
                responder.sendString(HttpResponseStatus.INTERNAL_SERVER_ERROR, "Write conflict while adding artifact. This can happen if multiple requests to add " + "the same artifact occur simultaneously. Please try again.");
            } catch (UnauthorizedException e) {
                responder.sendString(HttpResponseStatus.FORBIDDEN, e.getMessage());
            } catch (ConflictException e) {
                responder.sendString(HttpResponseStatus.CONFLICT, e.getMessage());
            } catch (Exception e) {
                LOG.error("Deploy failure", e);
                responder.sendString(HttpResponseStatus.BAD_REQUEST, e.getMessage());
            }
        }
    };
}

Example 2 with HttpResponder

use of co.cask.http.HttpResponder in project cdap by caskdata.

the class DatasetTypeService method createModuleConsumer.

private AbstractBodyConsumer createModuleConsumer(final DatasetModuleId datasetModuleId, final String className, final boolean forceUpdate, final Principal principal) throws IOException, NotFoundException {
    final NamespaceId namespaceId = datasetModuleId.getParent();
    final Location namespaceHomeLocation;
    try {
        namespaceHomeLocation = impersonator.doAs(namespaceId, new Callable<Location>() {

            @Override
            public Location call() throws Exception {
                return namespacedLocationFactory.get(namespaceId);
            }
        });
    } catch (Exception e) {
        // the only checked exception that the callable throws is IOException
        Throwables.propagateIfInstanceOf(e, IOException.class);
        throw Throwables.propagate(e);
    }
    // verify namespace directory exists
    if (!namespaceHomeLocation.exists()) {
        String msg = String.format("Home directory %s for namespace %s not found", namespaceHomeLocation, namespaceId);
        LOG.debug(msg);
        throw new NotFoundException(msg);
    }
    // Store uploaded content to a local temp file
    String namespacesDir = cConf.get(Constants.Namespace.NAMESPACES_DIR);
    File localDataDir = new File(cConf.get(Constants.CFG_LOCAL_DATA_DIR));
    File namespaceBase = new File(localDataDir, namespacesDir);
    File tempDir = new File(new File(namespaceBase, datasetModuleId.getNamespace()), cConf.get(Constants.AppFabric.TEMP_DIR)).getAbsoluteFile();
    if (!DirUtils.mkdirs(tempDir)) {
        throw new IOException("Could not create temporary directory at: " + tempDir);
    }
    return new AbstractBodyConsumer(File.createTempFile("dataset-", ".jar", tempDir)) {

        @Override
        protected void onFinish(HttpResponder responder, File uploadedFile) throws Exception {
            if (className == null) {
                // We have to delay until body upload is completed due to the fact that not all client is
                // requesting with "Expect: 100-continue" header and the client library we have cannot handle
                // connection close, and yet be able to read response reliably.
                // In longer term we should fix the client, as well as the netty-http server. However, since
                // this handler will be gone in near future, it's ok to have this workaround.
                responder.sendString(HttpResponseStatus.BAD_REQUEST, "Required header 'class-name' is absent.");
                return;
            }
            LOG.debug("Adding module {}, class name: {}", datasetModuleId, className);
            String dataFabricDir = cConf.get(Constants.Dataset.Manager.OUTPUT_DIR);
            String moduleName = datasetModuleId.getModule();
            Location archiveDir = namespaceHomeLocation.append(dataFabricDir).append(moduleName).append(Constants.ARCHIVE_DIR);
            String archiveName = moduleName + ".jar";
            Location archive = archiveDir.append(archiveName);
            // Copy uploaded content to a temporary location
            Location tmpLocation = archive.getTempFile(".tmp");
            try {
                Locations.mkdirsIfNotExists(archiveDir);
                LOG.debug("Copy from {} to {}", uploadedFile, tmpLocation);
                Files.copy(uploadedFile, Locations.newOutputSupplier(tmpLocation));
                // Finally, move archive to final location
                LOG.debug("Storing module {} jar at {}", datasetModuleId, archive);
                if (tmpLocation.renameTo(archive) == null) {
                    throw new IOException(String.format("Could not move archive from location: %s, to location: %s", tmpLocation, archive));
                }
                typeManager.addModule(datasetModuleId, className, archive, forceUpdate);
                // todo: response with DatasetModuleMeta of just added module (and log this info)
                // Ideally this should have been done before, but we cannot grant privileges on types until they've been
                // added to the type MDS. First revoke any orphaned privileges for types left behind by past failed revokes
                revokeAllPrivilegesOnModule(datasetModuleId);
                grantAllPrivilegesOnModule(datasetModuleId, principal);
                LOG.info("Added module {}", datasetModuleId);
                responder.sendStatus(HttpResponseStatus.OK);
            } catch (Exception e) {
                // There was a problem in deploying the dataset module. so revoke the privileges.
                revokeAllPrivilegesOnModule(datasetModuleId);
                // In case copy to temporary file failed, or rename failed
                try {
                    tmpLocation.delete();
                } catch (IOException ex) {
                    LOG.warn("Failed to cleanup temporary location {}", tmpLocation);
                }
                if (e instanceof DatasetModuleConflictException) {
                    responder.sendString(HttpResponseStatus.CONFLICT, e.getMessage());
                } else {
                    throw e;
                }
            }
        }
    };
}

Example 3 with HttpResponder

use of co.cask.http.HttpResponder in project cdap by caskdata.

the class AppLifecycleHttpHandler method deployAppFromArtifact.

// normally we wouldn't want to use a body consumer but would just want to read the request body directly
// since it wont be big. But the deploy app API has one path with different behavior based on content type
// the other behavior requires a BodyConsumer and only have one method per path is allowed,
// so we have to use a BodyConsumer
private BodyConsumer deployAppFromArtifact(final ApplicationId appId) throws IOException {
    // createTempFile() needs a prefix of at least 3 characters
    return new AbstractBodyConsumer(File.createTempFile("apprequest-" + appId, ".json", tmpDir)) {

        @Override
        protected void onFinish(HttpResponder responder, File uploadedFile) {
            try (FileReader fileReader = new FileReader(uploadedFile)) {
                AppRequest<?> appRequest = GSON.fromJson(fileReader, AppRequest.class);
                ArtifactSummary artifactSummary = appRequest.getArtifact();
                KerberosPrincipalId ownerPrincipalId = appRequest.getOwnerPrincipal() == null ? null : new KerberosPrincipalId(appRequest.getOwnerPrincipal());
                // if we don't null check, it gets serialized to "null"
                String configString = appRequest.getConfig() == null ? null : GSON.toJson(appRequest.getConfig());
                applicationLifecycleService.deployApp(appId.getParent(), appId.getApplication(), appId.getVersion(), artifactSummary, configString, createProgramTerminator(), ownerPrincipalId, appRequest.canUpdateSchedules());
                responder.sendString(HttpResponseStatus.OK, "Deploy Complete");
            } catch (ArtifactNotFoundException e) {
                responder.sendString(HttpResponseStatus.NOT_FOUND, e.getMessage());
            } catch (ConflictException e) {
                responder.sendString(HttpResponseStatus.CONFLICT, e.getMessage());
            } catch (UnauthorizedException e) {
                responder.sendString(HttpResponseStatus.FORBIDDEN, e.getMessage());
            } catch (InvalidArtifactException e) {
                responder.sendString(HttpResponseStatus.BAD_REQUEST, e.getMessage());
            } catch (IOException e) {
                LOG.error("Error reading request body for creating app {}.", appId);
                responder.sendString(HttpResponseStatus.INTERNAL_SERVER_ERROR, String.format("Error while reading json request body for app %s.", appId));
            } catch (Exception e) {
                LOG.error("Deploy failure", e);
                responder.sendString(HttpResponseStatus.BAD_REQUEST, e.getMessage());
            }
        }
    };
}

Example 4 with HttpResponder

use of co.cask.http.HttpResponder in project cdap by caskdata.

the class ArtifactHttpHandler method addArtifact.

@POST
@Path("/namespaces/{namespace-id}/artifacts/{artifact-name}")
@AuditPolicy(AuditDetail.HEADERS)
public BodyConsumer addArtifact(HttpRequest request, HttpResponder responder, @PathParam("namespace-id") final String namespaceId, @PathParam("artifact-name") final String artifactName, @HeaderParam(VERSION_HEADER) final String artifactVersion, @HeaderParam(EXTENDS_HEADER) final String parentArtifactsStr, @HeaderParam(PLUGINS_HEADER) String pluginClasses) throws NamespaceNotFoundException, BadRequestException {
    final NamespaceId namespace = validateAndGetNamespace(namespaceId);
    // and validated there
    if (artifactVersion != null && !artifactVersion.isEmpty()) {
        validateAndGetArtifactId(namespace, artifactName, artifactVersion);
    }
    final Set<ArtifactRange> parentArtifacts = parseExtendsHeader(namespace, parentArtifactsStr);
    final Set<PluginClass> additionalPluginClasses;
    if (pluginClasses == null) {
        additionalPluginClasses = ImmutableSet.of();
    } else {
        try {
            additionalPluginClasses = GSON.fromJson(pluginClasses, PLUGINS_TYPE);
        } catch (JsonParseException e) {
            responder.sendString(HttpResponseStatus.BAD_REQUEST, String.format("%s header '%s' is invalid: %s", PLUGINS_HEADER, pluginClasses, e.getMessage()));
            return null;
        }
    }
    try {
        // copy the artifact contents to local tmp directory
        final File destination = File.createTempFile("artifact-", ".jar", tmpDir);
        return new AbstractBodyConsumer(destination) {

            @Override
            protected void onFinish(HttpResponder responder, File uploadedFile) {
                try {
                    String version = (artifactVersion == null || artifactVersion.isEmpty()) ? getBundleVersion(uploadedFile) : artifactVersion;
                    Id.Artifact artifactId = validateAndGetArtifactId(namespace, artifactName, version);
                    // add the artifact to the repo
                    artifactRepository.addArtifact(artifactId, uploadedFile, parentArtifacts, additionalPluginClasses);
                    responder.sendString(HttpResponseStatus.OK, "Artifact added successfully");
                } catch (ArtifactRangeNotFoundException e) {
                    responder.sendString(HttpResponseStatus.NOT_FOUND, e.getMessage());
                } catch (ArtifactAlreadyExistsException e) {
                    responder.sendString(HttpResponseStatus.CONFLICT, e.getMessage());
                } catch (WriteConflictException e) {
                    responder.sendString(HttpResponseStatus.INTERNAL_SERVER_ERROR, "Conflict while writing artifact, please try again.");
                } catch (IOException e) {
                    LOG.error("Exception while trying to write artifact {}-{}-{}.", namespaceId, artifactName, artifactVersion, e);
                    responder.sendString(HttpResponseStatus.INTERNAL_SERVER_ERROR, "Error performing IO while writing artifact.");
                } catch (BadRequestException e) {
                    responder.sendString(HttpResponseStatus.BAD_REQUEST, e.getMessage());
                } catch (UnauthorizedException e) {
                    responder.sendString(HttpResponseStatus.FORBIDDEN, e.getMessage());
                } catch (Exception e) {
                    LOG.error("Error while writing artifact {}-{}-{}", namespaceId, artifactName, artifactVersion, e);
                    responder.sendString(HttpResponseStatus.INTERNAL_SERVER_ERROR, "Error while adding artifact.");
                }
            }

            private String getBundleVersion(File file) throws BadRequestException, IOException {
                try (JarFile jarFile = new JarFile(file)) {
                    Manifest manifest = jarFile.getManifest();
                    if (manifest == null) {
                        throw new BadRequestException("Unable to derive version from artifact because it does not contain a manifest. " + "Please package the jar with a manifest, or explicitly specify the artifact version.");
                    }
                    Attributes attributes = manifest.getMainAttributes();
                    String version = attributes == null ? null : attributes.getValue(ManifestFields.BUNDLE_VERSION);
                    if (version == null) {
                        throw new BadRequestException("Unable to derive version from artifact because manifest does not contain Bundle-Version attribute. " + "Please include Bundle-Version in the manifest, or explicitly specify the artifact version.");
                    }
                    return version;
                } catch (ZipException e) {
                    throw new BadRequestException("Artifact is not in zip format. Please make sure it is a jar file.");
                }
            }
        };
    } catch (IOException e) {
        LOG.error("Exception creating temp file to place artifact {} contents", artifactName, e);
        responder.sendString(HttpResponseStatus.INTERNAL_SERVER_ERROR, "Server error creating temp file for artifact.");
        return null;
    }
}

Example 5 with HttpResponder

use of co.cask.http.HttpResponder in project cdap by caskdata.

the class MessagingHttpService method startUp.

@Override
protected void startUp() throws Exception {
    httpService = new CommonNettyHttpServiceBuilder(cConf, Constants.Service.MESSAGING_SERVICE).setHost(cConf.get(Constants.MessagingSystem.HTTP_SERVER_BIND_ADDRESS)).setHandlerHooks(ImmutableList.of(new MetricsReporterHook(metricsCollectionService, Constants.Service.MESSAGING_SERVICE))).setWorkerThreadPoolSize(cConf.getInt(Constants.MessagingSystem.HTTP_SERVER_WORKER_THREADS)).setExecThreadPoolSize(cConf.getInt(Constants.MessagingSystem.HTTP_SERVER_EXECUTOR_THREADS)).setHttpChunkLimit(cConf.getInt(Constants.MessagingSystem.HTTP_SERVER_MAX_REQUEST_SIZE_MB) * 1024 * 1024).setExceptionHandler(new HttpExceptionHandler() {

        @Override
        public void handle(Throwable t, HttpRequest request, HttpResponder responder) {
            // TODO: CDAP-7688. Override the handling to return 400 on IllegalArgumentException
            if (t instanceof IllegalArgumentException) {
                logWithTrace(request, t);
                responder.sendString(HttpResponseStatus.BAD_REQUEST, t.getMessage());
            } else {
                super.handle(t, request, responder);
            }
        }

        private void logWithTrace(HttpRequest request, Throwable t) {
            LOG.trace("Error in handling request={} {} for user={}:", request.getMethod().getName(), request.getUri(), Objects.firstNonNull(SecurityRequestContext.getUserId(), "<null>"), t);
        }
    }).addHttpHandlers(handlers).build();
    httpService.startAndWait();
    cancelDiscovery = discoveryService.register(new Discoverable(Constants.Service.MESSAGING_SERVICE, httpService.getBindAddress()));
    LOG.info("Messaging HTTP server started on {}", httpService.getBindAddress());
}