Make git username and email configurable (#289)

* Gather git config data and save in preferences

* Align text box properly

* Apply git configs from settings

* Validate email address

6 files changed, 204 insertions, 3 deletions

diff --git a/app/src/main/java/com/zeapo/pwdstore/UserPreference.java b/app/src/main/java/com/zeapo/pwdstore/UserPreference.java
index 126aa18d..f17f52a4 100644
--- a/app/src/main/java/com/zeapo/pwdstore/UserPreference.java
+++ b/app/src/main/java/com/zeapo/pwdstore/UserPreference.java
@@ -59,6 +59,7 @@ public class UserPreference extends AppCompatActivity {
     private final static int EDIT_GIT_INFO = 3;
     private final static int SELECT_GIT_DIRECTORY = 4;
     private final static int EXPORT_PASSWORDS = 5;
+    private final static int EDIT_GIT_CONFIG = 6;
     private final static int REQUEST_EXTERNAL_STORAGE = 50;
     private PrefsFragment prefsFragment;
 
@@ -117,7 +118,17 @@ public class UserPreference extends AppCompatActivity {
                 }
             });
 
-            findPreference("git_delete_repo").setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
+            findPreference("git_config").setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
+                @Override
+                public boolean onPreferenceClick(Preference preference) {
+                    Intent intent = new Intent(callingActivity, GitActivity.class);
+                    intent.putExtra("Operation", GitActivity.EDIT_GIT_CONFIG);
+                    startActivityForResult(intent, EDIT_GIT_CONFIG);
+                    return true;
+                }
+            });
+
+           findPreference("git_delete_repo").setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
                 @Override
                 public boolean onPreferenceClick(Preference preference) {
                     new AlertDialog.Builder(callingActivity).
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/GitActivity.java b/app/src/main/java/com/zeapo/pwdstore/git/GitActivity.java
index faea01aa..48dd9602 100644
--- a/app/src/main/java/com/zeapo/pwdstore/git/GitActivity.java
+++ b/app/src/main/java/com/zeapo/pwdstore/git/GitActivity.java
@@ -36,6 +36,8 @@ import java.util.regex.Pattern;
 
 public class GitActivity extends AppCompatActivity {
     private static final String TAG = "GitAct";
+    // copied from http://stackoverflow.com/a/16058059/4247851
+    private static final String emailPattern = "^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\])|(([a-zA-Z\\-0-9]+\\.)+[a-zA-Z]{2,}))$";
 
     private Activity activity;
     private Context context;
@@ -56,6 +58,7 @@ public class GitActivity extends AppCompatActivity {
     public static final int EDIT_SERVER = 105;
     public static final int REQUEST_SYNC = 106;
     public static final int REQUEST_CREATE = 107;
+    public static final int EDIT_GIT_CONFIG = 108;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -256,6 +259,18 @@ public class GitActivity extends AppCompatActivity {
                 updateURI();
 
                 break;
+            case EDIT_GIT_CONFIG:
+                setContentView(R.layout.activity_git_config);
+                setTitle(R.string.title_activity_git_config);
+
+                // init the server information
+                final EditText git_user_name = ((EditText) findViewById(R.id.git_user_name));
+                final EditText git_user_email = ((EditText) findViewById(R.id.git_user_email));
+
+                git_user_name.setText(settings.getString("git_config_user_name", ""));
+                git_user_email.setText(settings.getString("git_config_user_email", ""));
+
+                break;
             case REQUEST_PULL:
                 syncRepository(REQUEST_PULL);
                 break;
@@ -460,6 +475,39 @@ public class GitActivity extends AppCompatActivity {
         finish();
     }
 
+    private boolean saveGitConfigs() {
+        // remember the settings
+        SharedPreferences.Editor editor = settings.edit();
+
+        String email = ((EditText) findViewById(R.id.git_user_email)).getText().toString();
+        editor.putString("git_config_user_email", email);
+        editor.putString("git_config_user_name", ((EditText) findViewById(R.id.git_user_name)).getText().toString());
+
+        if (!email.matches(emailPattern)) {
+            new AlertDialog.Builder(this).
+                setMessage(activity.getResources().getString(R.string.invalid_email_dialog_text)).
+                setPositiveButton(activity.getResources().getString(R.string.dialog_oops), null).
+                show();
+            return false;
+        }
+
+        editor.apply();
+        return true;
+    }
+
+    public void applyGitConfigs(View view) {
+        if(!saveGitConfigs())
+            return;
+
+        String git_user_name = settings.getString("git_config_user_name", "");
+        String git_user_email = settings.getString("git_config_user_email", "");
+
+        PasswordRepository.setUserName(git_user_name);
+        PasswordRepository.setUserEmail(git_user_email);
+
+        finish();
+    }
+
     /**
      * Clones the repository, the directory exists, deletes it
      *
diff --git a/app/src/main/java/com/zeapo/pwdstore/utils/PasswordRepository.java b/app/src/main/java/com/zeapo/pwdstore/utils/PasswordRepository.java
index 90cd5ed0..b1c99232 100644
--- a/app/src/main/java/com/zeapo/pwdstore/utils/PasswordRepository.java
+++ b/app/src/main/java/com/zeapo/pwdstore/utils/PasswordRepository.java
@@ -200,4 +200,39 @@ public class PasswordRepository {
         sort(passwordList);
         return passwordList;
     }
+
+    /**
+     * Sets the git user name
+     * @param String username username
+     */
+    public static void setUserName(String username) {
+        setStringConfig("user", null, "name", username);
+    }
+
+    /**
+     * Sets the git user email
+     * @param String email email
+     */
+    public static void setUserEmail(String email) {
+        setStringConfig("user", null, "email", email);
+    }
+
+    /**
+     * Sets a git config value
+     * @param String section config section name
+     * @param String subsection config subsection name
+     * @param String name config name
+     * @param String value the value to be set
+     */
+    private static void setStringConfig(String section, String subsection, String name, String value) {
+        if (isInitialized()) {
+            StoredConfig config = repository.getConfig();
+            config.setString(section, subsection, name, value);
+            try {
+                config.save();
+            } catch(Exception e) {
+                e.printStackTrace();
+            }
+        }
+    }
 }
diff --git a/app/src/main/res/layout/activity_git_config.xml b/app/src/main/res/layout/activity_git_config.xml
new file mode 100644
index 00000000..2955809b
--- /dev/null
+++ b/app/src/main/res/layout/activity_git_config.xml
@@ -0,0 +1,94 @@
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    tools:context="com.zeapo.pwdstore.git.GitActivity"
+    android:background="@android:color/white">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
+
+        <TextView
+            android:layout_width="fill_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/git_config"
+            android:textStyle="bold"
+            style="@android:style/TextAppearance.Large"
+            android:gravity="left"
+            android:paddingBottom="6dp"
+            android:textColor="@color/blue_grey_500"
+            android:background="@drawable/bottom_line"/>
+
+        <RelativeLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
+            android:layout_gravity="center_vertical">
+
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/git_user_name"
+                android:id="@+id/label_git_user_name"
+                android:layout_centerVertical="true"
+                android:layout_alignParentLeft="true"
+                android:paddingBottom="8dp"
+                android:layout_alignParentStart="true" />
+
+            <EditText
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:hint="@string/git_user_name_hint"
+                android:id="@+id/git_user_name"
+                android:layout_marginLeft="8dp"
+                android:layout_toEndOf="@+id/label_git_user_name"
+                android:layout_toRightOf="@+id/label_git_user_name"
+                android:layout_alignParentRight="true"
+                android:layout_alignParentEnd="true"
+                android:inputType="textWebEmailAddress"/>
+        </RelativeLayout>
+
+        <RelativeLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
+            android:layout_gravity="center_vertical">
+
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/git_user_email"
+                android:id="@+id/label_git_user_email"
+                android:layout_centerVertical="true"
+                android:layout_alignParentLeft="true"
+                android:paddingBottom="8dp"
+                android:layout_alignParentStart="true" />
+
+            <EditText
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:hint="@string/git_user_email_hint"
+                android:id="@+id/git_user_email"
+                android:layout_marginLeft="35dp"
+                android:layout_toEndOf="@+id/label_git_user_email"
+                android:layout_toRightOf="@+id/label_git_user_email"
+                android:layout_alignParentRight="true"
+                android:layout_alignParentEnd="true"
+                android:inputType="textWebEmailAddress"/>
+        </RelativeLayout>
+
+        <Button
+            android:id="@+id/save_button"
+            android:text="Save"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:onClick="applyGitConfigs"/>
+    </LinearLayout>
+
+</ScrollView>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 1bc6d9cc..a02c1b76 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -13,7 +13,8 @@
     <string name="dialog_delete">Delete directory</string>
     <string name="dialog_do_not_delete">Cancel</string>
     <string name="title_activity_git_clone">Repository information</string>
-    
+    <string name="title_activity_git_config">Git Configurations</string>
+
     <!-- Password Store -->
     <string name="creation_dialog_text">Please clone or create a new repository below before trying to add a password or any synchronization operation.</string>
 	<string name="store_git">/store/.git</string>
@@ -55,7 +56,7 @@
     <string name="passphrase_dialog_title">Authenticate</string>
     <string name="passphrase_dialog_text">Please provide the passphrase for your SSH key. Leave it empty if there is no passphrase.</string>
     <string name="password_dialog_text">Please provide the password for this repository</string>
-    
+
     <!-- Clone fragment -->
     <string name="clone_fragment_text">Welcome to Password Store\n\n In this screen you can either create a new repository or clone your git repository onto your device.</string>
     <string name="clone">Clone from server</string>
@@ -78,6 +79,14 @@
 
     <string name="warn_malformed_url_port">When using custom ports, provide an absolute path (starts with "/")</string>
 
+    <!-- Git Config fragment -->
+    <string name="git_config">Git config</string>
+    <string name="git_user_name">Username</string>
+    <string name="git_user_name_hint">User name</string>
+    <string name="git_user_email">Email</string>
+    <string name="git_user_email_hint">email</string>
+    <string name="invalid_email_dialog_text">Please enter a valid email address</string>
+
     <!-- PGP Handler -->
     <string name="title_activity_pgp_handler">PgpHandler</string>
     <string name="crypto_name_hint">name</string>
@@ -97,6 +106,7 @@
     <string name="pref_git_username_title">Username</string>
     <string name="pref_git_username_hint">username</string>
     <string name="pref_edit_server_info">Edit git server settings</string>
+    <string name="pref_edit_git_config">Edit git config</string>
     <string name="pref_ssh_title">Import SSH key</string>
     <string name="pref_ssh_keygen_title">Generate SSH key pair</string>
     <string name="pref_ssh_see_key_title">View generated public SSH key</string>
diff --git a/app/src/main/res/xml/preference.xml b/app/src/main/res/xml/preference.xml
index 0471e71d..67c33f8c 100644
--- a/app/src/main/res/xml/preference.xml
+++ b/app/src/main/res/xml/preference.xml
@@ -5,6 +5,9 @@
             android:key="git_server_info"
             android:title="@string/pref_edit_server_info" />
         <Preference
+            android:key="git_config"
+            android:title="@string/pref_edit_git_config" />
+        <Preference
             android:key="ssh_key"
             android:title="@string/pref_ssh_title" />
         <Preference