added ssh-key based authentication for clone

app/src/main/java/com/zeapo/pwdstore/GitHandler.java

@@ -26,6 +26,7 @@ import android.widget.TextView;
 import com.jcraft.jsch.JSch;
 import com.jcraft.jsch.JSchException;
 import com.jcraft.jsch.Session;
+import com.jcraft.jsch.UserInfo;
 import com.zeapo.pwdstore.crypto.PgpHandler;
 import com.zeapo.pwdstore.utils.PasswordRepository;
 
@@ -36,10 +37,15 @@ import org.apache.commons.io.FileUtils;
 import org.eclipse.jgit.api.errors.InvalidRemoteException;
 import org.eclipse.jgit.api.errors.JGitInternalException;
 import org.eclipse.jgit.api.errors.TransportException;
+import org.eclipse.jgit.errors.UnsupportedCredentialItem;
 import org.eclipse.jgit.merge.MergeStrategy;
+import org.eclipse.jgit.transport.CredentialItem;
+import org.eclipse.jgit.transport.CredentialsProvider;
+import org.eclipse.jgit.transport.CredentialsProviderUserInfo;
 import org.eclipse.jgit.transport.JschConfigSessionFactory;
 import org.eclipse.jgit.transport.OpenSshConfig;
 import org.eclipse.jgit.transport.SshSessionFactory;
+import org.eclipse.jgit.transport.URIish;
 import org.eclipse.jgit.transport.UsernamePasswordCredentialsProvider;
 import org.eclipse.jgit.util.FS;
 
@@ -128,21 +134,6 @@ public class GitHandler extends Activity {
                     @Override
                     public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
                         String selection = ((Spinner) findViewById(R.id.connection_mode)).getSelectedItem().toString();
-
-                        if (selection.equalsIgnoreCase("ssh-key (not yet implemented)")) {
-                            new AlertDialog.Builder(activity)
-                                    .setMessage("Authentication method not implemented yet")
-                                    .setPositiveButton("OK",
-                                            new DialogInterface.OnClickListener() {
-                                                public void onClick(DialogInterface dialog, int id) {
-                                                    dialog.cancel();
-                                                }
-                                            }
-                                    ).show();
-                            ((Button) findViewById(R.id.clone_button)).setEnabled(false);
-                        } else {
-                            ((Button) findViewById(R.id.clone_button)).setEnabled(true);
-                        }
                         connectionMode = selection;
                     }
 
@@ -506,7 +497,112 @@ public class GitHandler extends Activity {
     private void invokeWithAuthentication(final GitHandler activity, final Method method) {
 
         if (connectionMode.equalsIgnoreCase("ssh-key")) {
+            final File sshKey = new File(getFilesDir() + "/.ssh_key");
+            if (!sshKey.exists()) {
+                new AlertDialog.Builder(this)
+                        .setMessage("Please import your SSH key file in the preferences")
+                        .setTitle("No SSH key")
+                        .setPositiveButton("OK", new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int id) {
+                                try {
+                                    Intent intent = new Intent(getApplicationContext(), UserPreference.class);
+                                    startActivity(intent);
+                                } catch (Exception e) {
+                                    System.out.println("Exception caught :(");
+                                    e.printStackTrace();
+                                }
+                            }
+                        }).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int id) {
+                        // Do nothing...
+                    }
+                }).show();
+            } else {
+                final EditText passphrase = new EditText(activity);
+                passphrase.setHint("Passphrase");
+                passphrase.setWidth(LinearLayout.LayoutParams.MATCH_PARENT);
+                passphrase.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 
+                new AlertDialog.Builder(activity)
+                        .setTitle("Authenticate")
+                        .setMessage("Please provide the passphrase for your SSH key. Leave it empty if there is no passphrase.")
+                        .setView(passphrase)
+                        .setPositiveButton("OK", new DialogInterface.OnClickListener() {
+                            public void onClick(DialogInterface dialog, int whichButton) {
+
+                                SshSessionFactory.setInstance(new GitConfigSessionFactory());
+                                try {
+
+                                    JschConfigSessionFactory sessionFactory = new JschConfigSessionFactory() {
+
+                                        @Override
+                                        protected JSch
+                                        getJSch(final OpenSshConfig.Host hc, FS fs) throws JSchException {
+                                            JSch jsch = super.getJSch(hc, fs);
+                                            jsch.removeAllIdentity();
+                                            jsch.addIdentity(sshKey.getAbsolutePath());
+                                            return jsch;
+                                        }
+
+                                        @Override
+                                        protected void configure(OpenSshConfig.Host hc, Session session) {
+                                            session.setConfig("StrictHostKeyChecking", "no");
+
+                                            CredentialsProvider provider = new CredentialsProvider() {
+                                                @Override
+                                                public boolean isInteractive() {
+                                                    return false;
+                                                }
+
+                                                @Override
+                                                public boolean supports(CredentialItem... items) {
+                                                    return true;
+                                                }
+
+                                                @Override
+                                                public boolean get(URIish uri, CredentialItem... items) throws UnsupportedCredentialItem {
+                                                    for (CredentialItem item : items) {
+                                                        if (item instanceof CredentialItem.Username) {
+                                                            ((CredentialItem.Username) item).setValue(settings.getString("git_remote_username", "git"));
+                                                            continue;
+                                                        }
+                                                        if (item instanceof CredentialItem.StringType) {
+                                                            ((CredentialItem.StringType) item).setValue(passphrase.getText().toString());
+                                                        }
+                                                    }
+                                                    return true;
+                                                }
+                                            };
+                                            UserInfo userInfo = new CredentialsProviderUserInfo(session, provider);
+                                            session.setUserInfo(userInfo);
+                                        }
+                                    };
+
+                                    SshSessionFactory.setInstance(sessionFactory);
+
+
+                                    CloneCommand cmd = Git.cloneRepository()
+                                            .setDirectory(localDir)
+                                            .setURI(hostname)
+                                            .setBare(false)
+                                            .setNoCheckout(false)
+                                            .setCloneAllBranches(true);
+
+                                    new CloneTask(activity).execute(cmd);
+
+                                } catch (Exception e){
+                                    e.printStackTrace();
+                                }
+
+                            }
+                        }).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int whichButton) {
+                        // Do nothing.
+                    }
+                }).show();
+            }
         } else {
             if (protocol.equals("ssh://")) {
                 final EditText password = new EditText(activity);

app/src/main/java/com/zeapo/pwdstore/UserPreference.java

@@ -1,9 +1,13 @@
 package com.zeapo.pwdstore;
 
 import android.content.Intent;
+import android.content.SharedPreferences;
+import android.net.Uri;
 import android.os.Bundle;
 import android.preference.Preference;
 import android.preference.PreferenceActivity;
+import android.preference.PreferenceManager;
+import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
 
@@ -12,6 +16,9 @@ import com.zeapo.pwdstore.utils.PasswordRepository;
 
 import org.apache.commons.io.FileUtils;
 
+import java.io.File;
+import java.net.URI;
+
 public class UserPreference extends PreferenceActivity implements Preference.OnPreferenceClickListener {
 
     @Override
@@ -19,6 +26,7 @@ public class UserPreference extends PreferenceActivity implements Preference.OnP
         super.onCreate(savedInstanceState);
         addPreferencesFromResource(R.xml.preference);
         findPreference("openpgp_key_id").setOnPreferenceClickListener(this);
+        findPreference("ssh_key").setOnPreferenceClickListener(this);
 
         getActionBar().setDisplayHomeAsUpEnabled(true);
     }
@@ -46,6 +54,10 @@ public class UserPreference extends PreferenceActivity implements Preference.OnP
             Intent intent = new Intent(this, PgpHandler.class);
             intent.putExtra("Operation", "GET_KEY_ID");
             startActivityForResult(intent, 0);
+        } else if (pref.getKey().equals("ssh_key")) {
+            Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
+            intent.setType("file/*");
+            startActivityForResult(intent, 1);
         }
         return true;
     }
@@ -53,6 +65,14 @@ public class UserPreference extends PreferenceActivity implements Preference.OnP
     protected void onActivityResult(int requestCode, int resultCode,
                                     Intent data) {
         if (resultCode == RESULT_OK) {
+            if (requestCode == 1) {
+                Uri sshFile = data.getData();
+                try {
+                    FileUtils.copyFile(new File(sshFile.getPath()), new File(getFilesDir() + "/.ssh_key"));
+                } catch (Exception e) {
+
+                }
+            }
         }
     }
 }

app/src/main/res/layout/activity_git_clone.xml

@@ -15,7 +15,8 @@
         android:layout_height="match_parent">
         <LinearLayout
             android:layout_width="match_parent"
-            android:layout_height="wrap_content">
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
             <Spinner
                 android:id="@+id/clone_protocol"
                 android:layout_width="wrap_content"
@@ -24,8 +25,9 @@
                 android:hint="Repository URI"
                 android:id="@+id/clone_uri"
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content" />
+                android:layout_height="wrap_content"
-            </LinearLayout>
+                android:inputType="textUri"/>
+        </LinearLayout>
 
         <Spinner
             android:layout_width="match_parent"

app/src/main/res/xml/preference.xml

@@ -10,6 +10,9 @@
         <EditTextPreference android:title="Username"
             android:key="git_remote_username"
             android:hint="username"/>
+        <Preference
+            android:title="SSH Key"
+            android:key="ssh_key"/>
     </PreferenceCategory>
 
     <PreferenceCategory android:title="Crypto">