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- /*
- * Copyright (C) 2014, Matthias Sohn <matthias.sohn@sap.com>
- * and other copyright owners as documented in the project's IP log.
- *
- * This program and the accompanying materials are made available
- * under the terms of the Eclipse Distribution License v1.0 which
- * accompanies this distribution, is reproduced below, and is
- * available at http://www.eclipse.org/org/documents/edl-v10.php
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * - Neither the name of the Eclipse Foundation, Inc. nor the
- * names of its contributors may be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- package org.eclipse.jgit.transport;
-
- import java.util.ArrayList;
- import java.util.Arrays;
- import java.util.List;
-
- import org.eclipse.jgit.errors.UnsupportedCredentialItem;
-
- /**
- * A credentials provider chaining multiple credentials providers
- *
- * @since 3.5
- */
- public class ChainingCredentialsProvider extends CredentialsProvider {
-
- private List<CredentialsProvider> credentialProviders;
-
- /**
- * Create a new chaining credential provider. This provider tries to
- * retrieve credentials from the chained credential providers in the order
- * they are given here. If multiple providers support the requested items
- * and have non-null credentials the first of them will be used.
- *
- * @param providers
- * credential providers asked for credentials in the order given
- * here
- */
- public ChainingCredentialsProvider(CredentialsProvider... providers) {
- this.credentialProviders = new ArrayList<CredentialsProvider>(
- Arrays.asList(providers));
- for (CredentialsProvider p : providers)
- credentialProviders.add(p);
- }
-
- /**
- * @return {@code true} if any of the credential providers in the list is
- * interactive, otherwise {@code false}
- * @see org.eclipse.jgit.transport.CredentialsProvider#isInteractive()
- */
- @Override
- public boolean isInteractive() {
- for (CredentialsProvider p : credentialProviders)
- if (p.isInteractive())
- return true;
- return false;
- }
-
- /**
- * @return {@code true} if any of the credential providers in the list
- * supports the requested items, otherwise {@code false}
- * @see org.eclipse.jgit.transport.CredentialsProvider#supports(org.eclipse.jgit.transport.CredentialItem[])
- */
- @Override
- public boolean supports(CredentialItem... items) {
- for (CredentialsProvider p : credentialProviders)
- if (p.supports(items))
- return true;
- return false;
- }
-
- /**
- * Populates the credential items with the credentials provided by the first
- * credential provider in the list which populates them with non-null values
- *
- * @return {@code true} if any of the credential providers in the list
- * supports the requested items, otherwise {@code false}
- * @see org.eclipse.jgit.transport.CredentialsProvider#supports(org.eclipse.jgit.transport.CredentialItem[])
- */
- @Override
- public boolean get(URIish uri, CredentialItem... items)
- throws UnsupportedCredentialItem {
- for (CredentialsProvider p : credentialProviders) {
- if (p.supports(items)) {
- if (!p.get(uri, items)) {
- if (p.isInteractive()) {
- return false; // user cancelled the request
- }
- continue;
- }
- if (isAnyNull(items)) {
- continue;
- }
- return true;
- }
- }
- return false;
- }
-
- private boolean isAnyNull(CredentialItem... items) {
- for (CredentialItem i : items)
- if (i == null)
- return true;
- return false;
- }
- }
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