| /* |
| * Copyright (C) 2010, Christian Halstrick <christian.halstrick@sap.com>, |
| * Copyright (C) 2010, Stefan Lay <stefan.lay@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.List; |
| |
| import org.eclipse.jgit.errors.UnsupportedCredentialItem; |
| |
| /** |
| * Provide credentials for use in connecting to Git repositories. |
| * |
| * Implementors are strongly encouraged to support at least the minimal |
| * {@link CredentialItem.Username} and {@link CredentialItem.Password} items. |
| * More sophisticated implementors may implement additional types, such as |
| * {@link CredentialItem.StringType}. |
| * |
| * CredentialItems are usually presented in bulk, allowing implementors to |
| * combine them into a single UI widget and streamline the authentication |
| * process for an end-user. |
| * |
| * @see UsernamePasswordCredentialsProvider |
| */ |
| public abstract class CredentialsProvider { |
| private static volatile CredentialsProvider defaultProvider; |
| |
| /** @return the default credentials provider, or null. */ |
| public static CredentialsProvider getDefault() { |
| return defaultProvider; |
| } |
| |
| /** |
| * Set the default credentials provider. |
| * |
| * @param p |
| * the new default provider, may be null to select no default. |
| */ |
| public static void setDefault(CredentialsProvider p) { |
| defaultProvider = p; |
| } |
| |
| /** |
| * @param items |
| * credential items to check |
| * @return {@code true} if any of the passed items is null, {@code false} |
| * otherwise |
| * @since 4.2 |
| */ |
| protected static boolean isAnyNull(CredentialItem... items) { |
| for (CredentialItem i : items) |
| if (i == null) |
| return true; |
| return false; |
| } |
| |
| /** |
| * Check if the provider is interactive with the end-user. |
| * |
| * An interactive provider may try to open a dialog box, or prompt for input |
| * on the terminal, and will wait for a user response. A non-interactive |
| * provider will either populate CredentialItems, or fail. |
| * |
| * @return {@code true} if the provider is interactive with the end-user. |
| */ |
| public abstract boolean isInteractive(); |
| |
| /** |
| * Check if the provider can supply the necessary {@link CredentialItem}s. |
| * |
| * @param items |
| * the items the application requires to complete authentication. |
| * @return {@code true} if this {@link CredentialsProvider} supports all of |
| * the items supplied. |
| */ |
| public abstract boolean supports(CredentialItem... items); |
| |
| /** |
| * Ask for the credential items to be populated. |
| * |
| * @param uri |
| * the URI of the remote resource that needs authentication. |
| * @param items |
| * the items the application requires to complete authentication. |
| * @return {@code true} if the request was successful and values were |
| * supplied; {@code false} if the user canceled the request and did |
| * not supply all requested values. |
| * @throws UnsupportedCredentialItem |
| * if one of the items supplied is not supported. |
| */ |
| public abstract boolean get(URIish uri, CredentialItem... items) |
| throws UnsupportedCredentialItem; |
| |
| /** |
| * Ask for the credential items to be populated. |
| * |
| * @param uri |
| * the URI of the remote resource that needs authentication. |
| * @param items |
| * the items the application requires to complete authentication. |
| * @return {@code true} if the request was successful and values were |
| * supplied; {@code false} if the user canceled the request and did |
| * not supply all requested values. |
| * @throws UnsupportedCredentialItem |
| * if one of the items supplied is not supported. |
| */ |
| public boolean get(URIish uri, List<CredentialItem> items) |
| throws UnsupportedCredentialItem { |
| return get(uri, items.toArray(new CredentialItem[items.size()])); |
| } |
| |
| /** |
| * Reset the credentials provider for the given URI |
| * |
| * @param uri |
| */ |
| public void reset(URIish uri) { |
| // default does nothing |
| } |
| } |