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The "SessionSource" has nothing to do with sessions (and it's often used in sessionless contexts). What it does indicate is the endpoint used to make the request. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=125295224
116 lines
4.4 KiB
Java
116 lines
4.4 KiB
Java
// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.flows;
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import static google.registry.flows.EppXmlTransformer.marshalWithLenientRetry;
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import static google.registry.flows.EppXmlTransformer.unmarshal;
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import static google.registry.flows.picker.FlowPicker.getFlowClass;
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import com.google.common.annotations.VisibleForTesting;
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import com.google.common.base.Joiner;
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import com.google.common.collect.ImmutableList;
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import google.registry.model.eppcommon.Trid;
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import google.registry.model.eppinput.EppInput;
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import google.registry.model.eppoutput.EppOutput;
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import google.registry.model.eppoutput.EppResponse;
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import google.registry.model.eppoutput.Result;
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import google.registry.model.eppoutput.Result.Code;
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import google.registry.monitoring.whitebox.EppMetrics;
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import google.registry.util.Clock;
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import google.registry.util.FormattingLogger;
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import javax.inject.Inject;
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/**
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* An implementation of the EPP command/response protocol.
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*
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* @see "http://tools.ietf.org/html/rfc5730"
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*/
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public final class EppController {
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private static final FormattingLogger logger = FormattingLogger.getLoggerForCallerClass();
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@Inject Clock clock;
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@Inject EppMetrics metrics;
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@Inject EppController() {}
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/**
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* Read an EPP envelope from the client, find the matching flow, execute it, and return
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* the response marshalled to a byte array.
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*/
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public byte[] handleEppCommand(
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SessionMetadata sessionMetadata,
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TransportCredentials credentials,
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EppRequestSource eppRequestSource,
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boolean isDryRun,
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boolean isSuperuser,
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byte[] inputXmlBytes) {
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Trid trid = null;
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try {
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EppInput eppInput = unmarshal(EppInput.class, inputXmlBytes);
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trid = Trid.create(eppInput.getCommandWrapper().getClTrid());
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ImmutableList<String> targetIds = eppInput.getTargetIds();
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metrics.setCommandName(eppInput.getCommandName());
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metrics.setClientId(sessionMetadata.getClientId());
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metrics.setPrivilegeLevel(isSuperuser ? "SUPERUSER" : "NORMAL");
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if (!targetIds.isEmpty()) {
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metrics.setEppTarget(Joiner.on(",").join(targetIds));
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}
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FlowRunner flowRunner = new FlowRunner(
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getFlowClass(eppInput),
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eppInput,
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trid,
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sessionMetadata,
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credentials,
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eppRequestSource,
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isDryRun,
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isSuperuser,
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inputXmlBytes,
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metrics,
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clock);
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EppOutput eppOutput = flowRunner.run();
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if (eppOutput.isResponse()) {
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metrics.setEppStatus(eppOutput.getResponse().getResult().getCode());
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}
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return marshalWithLenientRetry(eppOutput);
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} catch (EppException e) {
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// The command failed. Send the client an error message.
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metrics.setEppStatus(e.getResult().getCode());
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return marshalWithLenientRetry(getErrorResponse(clock, e.getResult(), trid));
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} catch (Throwable e) {
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// Something bad and unexpected happened. Send the client a generic error, and log it.
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logger.severe(e, "Unexpected failure");
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metrics.setEppStatus(Code.CommandFailed);
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return marshalWithLenientRetry(
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getErrorResponse(clock, Result.create(Code.CommandFailed), trid));
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} finally {
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metrics.export();
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}
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}
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/** Create a response indicating an Epp failure. */
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@VisibleForTesting
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static EppOutput getErrorResponse(Clock clock, Result result, Trid trid) {
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// Create TRID (without a clTRID) if one hasn't been created yet, as it's necessary to construct
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// a valid response. This can happen if the error occurred before we could even parse out the
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// clTRID (e.g. if a syntax error occurred parsing the supplied XML).
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return EppOutput.create(new EppResponse.Builder()
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.setTrid(trid == null ? Trid.create(null) : trid)
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.setResult(result)
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.setExecutionTime(clock.nowUtc())
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.build());
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}
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}
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