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// Copyright (C) 2014 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.gerrit.server.git.validators;
import com.google.gerrit.extensions.annotations.ExtensionPoint;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gerrit.server.validators.ValidationException;
import java.util.Collection;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.transport.UploadPack;
/**
* Listener to provide validation for upload operations.
*
* <p>Invoked by Gerrit before it begins to send a pack to the client.
*
* <p>Implementors can block the upload operation by throwing a ValidationException. The exception's
* message text will be reported to the end-user over the client's protocol connection.
*/
@ExtensionPoint
public interface UploadValidationListener {
/**
* Validate an upload before it begins.
*
* @param repository The repository
* @param project The project
* @param remoteHost Remote address/hostname of the user
* @param up the UploadPack instance being processed.
* @param wants The list of wanted objects. These may be RevObject or RevCommit if the processor
* parsed them. Implementors should not rely on the values being parsed.
* @param haves The list of common objects. Empty on an initial clone request. These may be
* RevObject or RevCommit if the processor parsed them. Implementors should not rely on the
* values being parsed.
* @throws ValidationException to block the upload and send a message back to the end-user over
* the client's protocol connection.
*/
default void onPreUpload(
Repository repository,
Project project,
String remoteHost,
UploadPack up,
Collection<? extends ObjectId> wants,
Collection<? extends ObjectId> haves)
throws ValidationException {}
/**
* Invoked before negotiation round is started.
*
* @param repository The repository
* @param project The project
* @param remoteHost Remote address/hostname of the user
* @param up the UploadPack instance being processed
* @param wants The list of wanted objects. These may be RevObject or RevCommit if the processor
* parsed them. Implementors should not rely on the values being parsed.
* @param cntOffered number of objects the client has offered.
* @throws ValidationException to block the upload and send a message back to the end-user over
* the client's protocol connection.
*/
default void onBeginNegotiate(
Repository repository,
Project project,
String remoteHost,
UploadPack up,
Collection<? extends ObjectId> wants,
int cntOffered)
throws ValidationException {}
}
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