Implement command line support for CredentialsProvider

Instead of configuring the JSch session factory, configure a more
generic CredentialsProvider, which will work for other transport
types such as http, in addition to the existing ssh.

Change-Id: I22b13303c17e654ba6720edf4be2ef15fe29537a
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

3 files changed, 206 insertions, 186 deletions

diff --git a/org.eclipse.jgit.ui/META-INF/MANIFEST.MF b/org.eclipse.jgit.ui/META-INF/MANIFEST.MF
index a3afa6772f..36fbae9f3c 100644
--- a/org.eclipse.jgit.ui/META-INF/MANIFEST.MF
+++ b/org.eclipse.jgit.ui/META-INF/MANIFEST.MF
@@ -7,7 +7,8 @@ Bundle-Version: 0.10.0.qualifier
 Bundle-Vendor: %provider_name
 Bundle-RequiredExecutionEnvironment: J2SE-1.5
 Export-Package: org.eclipse.jgit.awtui;version="0.10.0"
-Import-Package: org.eclipse.jgit.lib;version="[0.10.0,0.11.0)",
+Import-Package: org.eclipse.jgit.errors;version="[0.10.0,0.11.0)", 
+ org.eclipse.jgit.lib;version="[0.10.0,0.11.0)",
  org.eclipse.jgit.nls;version="[0.10.0,0.11.0)",
  org.eclipse.jgit.revplot;version="[0.10.0,0.11.0)",
  org.eclipse.jgit.revwalk;version="[0.10.0,0.11.0)",
diff --git a/org.eclipse.jgit.ui/src/org/eclipse/jgit/awtui/AwtCredentialsProvider.java b/org.eclipse.jgit.ui/src/org/eclipse/jgit/awtui/AwtCredentialsProvider.java
new file mode 100644
index 0000000000..0e6f78ab49
--- /dev/null
+++ b/org.eclipse.jgit.ui/src/org/eclipse/jgit/awtui/AwtCredentialsProvider.java
@@ -0,0 +1,204 @@
+/*
+ * Copyright (C) 2010, Google Inc.
+ * Copyright (C) 2008, Robin Rosenberg <robin.rosenberg@dewire.com>
+ * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
+ * 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.awtui;
+
+import java.awt.GridBagConstraints;
+import java.awt.GridBagLayout;
+import java.awt.Insets;
+
+import javax.swing.JLabel;
+import javax.swing.JOptionPane;
+import javax.swing.JPanel;
+import javax.swing.JPasswordField;
+import javax.swing.JTextField;
+
+import org.eclipse.jgit.errors.UnsupportedCredentialItem;
+import org.eclipse.jgit.transport.CredentialItem;
+import org.eclipse.jgit.transport.CredentialsProvider;
+import org.eclipse.jgit.transport.URIish;
+
+/** Interacts with the user during authentication by using AWT/Swing dialogs. */
+public class AwtCredentialsProvider extends CredentialsProvider {
+	/** Install this implementation as the default. */
+	public static void install() {
+		CredentialsProvider.setDefault(new AwtCredentialsProvider());
+	}
+
+	@Override
+	public boolean isInteractive() {
+		return true;
+	}
+
+	@Override
+	public boolean supports(CredentialItem... items) {
+		for (CredentialItem i : items) {
+			if (i instanceof CredentialItem.StringType)
+				continue;
+
+			else if (i instanceof CredentialItem.CharArrayType)
+				continue;
+
+			else if (i instanceof CredentialItem.YesNoType)
+				continue;
+
+			else if (i instanceof CredentialItem.InformationalMessage)
+				continue;
+
+			else
+				return false;
+		}
+		return true;
+	}
+
+	@Override
+	public boolean get(URIish uri, CredentialItem... items)
+			throws UnsupportedCredentialItem {
+		if (items.length == 0) {
+			return true;
+
+		} else if (items.length == 1) {
+			final CredentialItem item = items[0];
+
+			if (item instanceof CredentialItem.InformationalMessage) {
+				JOptionPane.showMessageDialog(null, item.getPromptText(),
+						UIText.get().warning, JOptionPane.INFORMATION_MESSAGE);
+				return true;
+
+			} else if (item instanceof CredentialItem.YesNoType) {
+				CredentialItem.YesNoType v = (CredentialItem.YesNoType) item;
+				int r = JOptionPane.showConfirmDialog(null, v.getPromptText(),
+						UIText.get().warning, JOptionPane.YES_NO_OPTION);
+				switch (r) {
+				case JOptionPane.YES_OPTION:
+					v.setValue(true);
+					return true;
+
+				case JOptionPane.NO_OPTION:
+					v.setValue(false);
+					return true;
+
+				case JOptionPane.CANCEL_OPTION:
+				case JOptionPane.CLOSED_OPTION:
+				default:
+					return false;
+				}
+
+			} else {
+				return interactive(uri, items);
+			}
+
+		} else {
+			return interactive(uri, items);
+		}
+	}
+
+	private boolean interactive(URIish uri, CredentialItem[] items) {
+		final GridBagConstraints gbc = new GridBagConstraints(0, 0, 1, 1, 1, 1,
+				GridBagConstraints.NORTHWEST, GridBagConstraints.NONE,
+				new Insets(0, 0, 0, 0), 0, 0);
+		final JPanel panel = new JPanel();
+		panel.setLayout(new GridBagLayout());
+
+		final JTextField[] texts = new JTextField[items.length];
+		for (int i = 0; i < items.length; i++) {
+			CredentialItem item = items[i];
+
+			if (item instanceof CredentialItem.StringType
+					|| item instanceof CredentialItem.CharArrayType) {
+				gbc.fill = GridBagConstraints.NONE;
+				gbc.gridwidth = GridBagConstraints.RELATIVE;
+				gbc.gridx = 0;
+				panel.add(new JLabel(item.getPromptText()), gbc);
+
+				gbc.fill = GridBagConstraints.HORIZONTAL;
+				gbc.gridwidth = GridBagConstraints.RELATIVE;
+				gbc.gridx = 1;
+				if (item.isValueSecure())
+					texts[i] = new JPasswordField(20);
+				else
+					texts[i] = new JTextField(20);
+				panel.add(texts[i], gbc);
+				gbc.gridy++;
+
+			} else if (item instanceof CredentialItem.InformationalMessage) {
+				gbc.fill = GridBagConstraints.NONE;
+				gbc.gridwidth = GridBagConstraints.REMAINDER;
+				gbc.gridx = 0;
+				panel.add(new JLabel(item.getPromptText()), gbc);
+				gbc.gridy++;
+
+			} else {
+				throw new UnsupportedCredentialItem(uri, item.getPromptText());
+			}
+		}
+
+		if (JOptionPane.showConfirmDialog(null, panel,
+				UIText.get().authenticationRequired,
+				JOptionPane.OK_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE) != JOptionPane.OK_OPTION)
+			return false; // cancel
+
+		for (int i = 0; i < items.length; i++) {
+			CredentialItem item = items[i];
+			JTextField f = texts[i];
+
+			if (item instanceof CredentialItem.StringType) {
+				CredentialItem.StringType v = (CredentialItem.StringType) item;
+				if (f instanceof JPasswordField)
+					v.setValue(new String(((JPasswordField) f).getPassword()));
+				else
+					v.setValue(f.getText());
+
+			} else if (item instanceof CredentialItem.CharArrayType) {
+				CredentialItem.CharArrayType v = (CredentialItem.CharArrayType) item;
+				if (f instanceof JPasswordField)
+					v.setValueNoCopy(((JPasswordField) f).getPassword());
+				else
+					v.setValueNoCopy(f.getText().toCharArray());
+			}
+		}
+		return true;
+	}
+}
diff --git a/org.eclipse.jgit.ui/src/org/eclipse/jgit/awtui/AwtSshSessionFactory.java b/org.eclipse.jgit.ui/src/org/eclipse/jgit/awtui/AwtSshSessionFactory.java
deleted file mode 100644
index f0de7ceb70..0000000000
--- a/org.eclipse.jgit.ui/src/org/eclipse/jgit/awtui/AwtSshSessionFactory.java
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- * Copyright (C) 2008, Robin Rosenberg <robin.rosenberg@dewire.com>
- * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
- * 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.awtui;
-
-import java.awt.Container;
-import java.awt.GridBagConstraints;
-import java.awt.GridBagLayout;
-import java.awt.Insets;
-
-import javax.swing.JLabel;
-import javax.swing.JOptionPane;
-import javax.swing.JPanel;
-import javax.swing.JPasswordField;
-import javax.swing.JTextField;
-
-import org.eclipse.jgit.transport.OpenSshConfig;
-import org.eclipse.jgit.transport.SshConfigSessionFactory;
-import org.eclipse.jgit.transport.SshSessionFactory;
-
-import com.jcraft.jsch.Session;
-import com.jcraft.jsch.UIKeyboardInteractive;
-import com.jcraft.jsch.UserInfo;
-
-/**
- * Loads known hosts and private keys from <code>$HOME/.ssh</code>.
- * <p>
- * This is the default implementation used by JGit and provides most of the
- * compatibility necessary to match OpenSSH, a popular implementation of SSH
- * used by C Git.
- * <p>
- * If user interactivity is required by SSH (e.g. to obtain a password) AWT is
- * used to display a password input field to the end-user.
- */
-public class AwtSshSessionFactory extends SshConfigSessionFactory {
-	/** Install this session factory implementation into the JVM. */
-	public static void install() {
-		SshSessionFactory.setInstance(new AwtSshSessionFactory());
-	}
-
-	@Override
-	protected void configure(final OpenSshConfig.Host hc, final Session session) {
-		if (!hc.isBatchMode())
-			session.setUserInfo(new AWT_UserInfo());
-	}
-
-	private static class AWT_UserInfo implements UserInfo,
-			UIKeyboardInteractive {
-		private String passwd;
-
-		private String passphrase;
-
-		public void showMessage(final String msg) {
-			JOptionPane.showMessageDialog(null, msg);
-		}
-
-		public boolean promptYesNo(final String msg) {
-			return JOptionPane.showConfirmDialog(null, msg, UIText.get().warning,
-					JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION;
-		}
-
-		public boolean promptPassword(final String msg) {
-			passwd = null;
-			final JPasswordField passwordField = new JPasswordField(20);
-			final int result = JOptionPane.showConfirmDialog(null,
-					new Object[] { passwordField }, msg,
-					JOptionPane.OK_CANCEL_OPTION);
-			if (result == JOptionPane.OK_OPTION) {
-				passwd = new String(passwordField.getPassword());
-				return true;
-			}
-			return false;
-		}
-
-		public boolean promptPassphrase(final String msg) {
-			passphrase = null;
-			final JPasswordField passwordField = new JPasswordField(20);
-			final int result = JOptionPane.showConfirmDialog(null,
-					new Object[] { passwordField }, msg,
-					JOptionPane.OK_CANCEL_OPTION);
-			if (result == JOptionPane.OK_OPTION) {
-				passphrase = new String(passwordField.getPassword());
-				return true;
-			}
-			return false;
-		}
-
-		public String getPassword() {
-			return passwd;
-		}
-
-		public String getPassphrase() {
-			return passphrase;
-		}
-
-		public String[] promptKeyboardInteractive(final String destination,
-				final String name, final String instruction,
-				final String[] prompt, final boolean[] echo) {
-			final GridBagConstraints gbc = new GridBagConstraints(0, 0, 1, 1,
-					1, 1, GridBagConstraints.NORTHWEST,
-					GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0);
-			final Container panel = new JPanel();
-			panel.setLayout(new GridBagLayout());
-
-			gbc.weightx = 1.0;
-			gbc.gridwidth = GridBagConstraints.REMAINDER;
-			gbc.gridx = 0;
-			panel.add(new JLabel(instruction), gbc);
-			gbc.gridy++;
-
-			gbc.gridwidth = GridBagConstraints.RELATIVE;
-
-			final JTextField[] texts = new JTextField[prompt.length];
-			for (int i = 0; i < prompt.length; i++) {
-				gbc.fill = GridBagConstraints.NONE;
-				gbc.gridx = 0;
-				gbc.weightx = 1;
-				panel.add(new JLabel(prompt[i]), gbc);
-
-				gbc.gridx = 1;
-				gbc.fill = GridBagConstraints.HORIZONTAL;
-				gbc.weighty = 1;
-				if (echo[i]) {
-					texts[i] = new JTextField(20);
-				} else {
-					texts[i] = new JPasswordField(20);
-				}
-				panel.add(texts[i], gbc);
-				gbc.gridy++;
-			}
-
-			if (JOptionPane.showConfirmDialog(null, panel, destination + ": "
-					+ name, JOptionPane.OK_CANCEL_OPTION,
-					JOptionPane.QUESTION_MESSAGE) == JOptionPane.OK_OPTION) {
-				String[] response = new String[prompt.length];
-				for (int i = 0; i < prompt.length; i++) {
-					response[i] = texts[i].getText();
-				}
-				return response;
-			}
-			return null; // cancel
-		}
-	}
-}