Added importing vCards into local contact database

ATTRIBUTION.md

@@ -35,3 +35,4 @@ FairEmail uses:
 * [AndroidSVG](https://github.com/BigBadaboom/androidsvg). Copyright 2013 Paul LeBeau, Cave Rock Software Ltd. [Apache License 2.0](https://github.com/BigBadaboom/androidsvg/blob/master/LICENSE).
 * [Public Suffix List](https://publicsuffix.org/). Copyright © 2007–20 Mozilla Foundation. [Mozilla Public License, v. 2.0](https://mozilla.org/MPL/2.0/).
 * [Outlook Message Parser](https://github.com/bbottema/outlook-message-parser). Copyright (C) 2017 Benny Bottema. [Apache License 2.0](https://github.com/bbottema/outlook-message-parser/blob/master/LICENSE-2.0.txt).
+* [ez-vcard](https://github.com/mangstadt/ez-vcard). Copyright (c) 2012-2021, Michael Angstadt. All rights reserved. [FreeBSD License](https://github.com/mangstadt/ez-vcard/blob/master/LICENSE).

CHANGELOG.md

@@ -4,6 +4,11 @@
 
 ### [Zanabazar](https://en.wikipedia.org/wiki/Zanabazar_junior)
 
+### Next version
+
+* Added importing of vCards into local contact database
+* Reduced memory usage
+
 ### 1.1739
 
 * Showing search index state

app/build.gradle

@@ -326,6 +326,7 @@ dependencies {
     def badge_version = "1.1.22"
     def bugsnag_version = "5.12.0"
     def biweekly_version = "0.6.6"
+    def vcard_version = "0.11.3"
     def relinker_version = "1.4.3"
     def markwon_version = "4.6.2"
     def bouncycastle_version = "1.69"
@@ -484,6 +485,9 @@ dependencies {
         exclude group: 'com.fasterxml.jackson.core', module: 'jackson-core'
     }
 
+    // https://github.com/mangstadt/ez-vcard
+    implementation "com.googlecode.ez-vcard:ez-vcard:$vcard_version"
+
     // https://github.com/KeepSafe/ReLinker
     // https://mvnrepository.com/artifact/com.getkeepsafe.relinker/relinker
     implementation "com.getkeepsafe.relinker:relinker:$relinker_version"

app/src/main/assets/ATTRIBUTION.md

@@ -35,3 +35,4 @@ FairEmail uses:
 * [AndroidSVG](https://github.com/BigBadaboom/androidsvg). Copyright 2013 Paul LeBeau, Cave Rock Software Ltd. [Apache License 2.0](https://github.com/BigBadaboom/androidsvg/blob/master/LICENSE).
 * [Public Suffix List](https://publicsuffix.org/). Copyright © 2007–20 Mozilla Foundation. [Mozilla Public License, v. 2.0](https://mozilla.org/MPL/2.0/).
 * [Outlook Message Parser](https://github.com/bbottema/outlook-message-parser). Copyright (C) 2017 Benny Bottema. [Apache License 2.0](https://github.com/bbottema/outlook-message-parser/blob/master/LICENSE-2.0.txt).
+* [ez-vcard](https://github.com/mangstadt/ez-vcard). Copyright (c) 2012-2021, Michael Angstadt. All rights reserved. [FreeBSD License](https://github.com/mangstadt/ez-vcard/blob/master/LICENSE).

app/src/main/assets/CHANGELOG.md

@@ -4,6 +4,11 @@
 
 ### [Zanabazar](https://en.wikipedia.org/wiki/Zanabazar_junior)
 
+### Next version
+
+* Added importing of vCards into local contact database
+* Reduced memory usage
+
 ### 1.1739
 
 * Showing search index state

app/src/main/java/eu/faircode/email/FragmentContacts.java

@@ -19,9 +19,16 @@
     Copyright 2018-2021 by Marcel Bokhorst (M66B)
 */
 
+import static android.app.Activity.RESULT_OK;
+
+import android.Manifest;
 import android.app.Dialog;
+import android.content.ContentResolver;
 import android.content.Context;
 import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.net.Uri;
 import android.os.Bundle;
 import android.text.TextUtils;
 import android.view.LayoutInflater;
@@ -33,6 +40,7 @@
 import android.widget.CheckBox;
 import android.widget.ImageButton;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -43,10 +51,24 @@
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
+import java.io.BufferedInputStream;
+import java.io.FileNotFoundException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Date;
 import java.util.List;
 
+import javax.mail.Address;
+import javax.mail.internet.InternetAddress;
+
+import ezvcard.Ezvcard;
+import ezvcard.VCard;
+import ezvcard.io.text.VCardReader;
+import ezvcard.property.Email;
+import ezvcard.property.FormattedName;
+
 public class FragmentContacts extends FragmentBase {
     private RecyclerView rvContacts;
     private ContentLoadingProgressBar pbWait;
@@ -56,6 +78,8 @@ public class FragmentContacts extends FragmentBase {
     private String searching = null;
     private AdapterContact adapter;
 
+    static final int REQUEST_IMPORT = 1;
+
     @Override
     @Nullable
     public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
@@ -166,13 +190,16 @@ public boolean onOptionsItemSelected(MenuItem item) {
         if (itemId == R.id.menu_help) {
             onMenuHelp();
             return true;
-        } else if (itemId == R.id.menu_delete) {
-            new FragmentDelete().show(getParentFragmentManager(), "contacts:delete");
-            return true;
         } else if (itemId == R.id.menu_junk) {
             item.setChecked(!item.isChecked());
             onMenuJunk(item.isChecked());
             return true;
+        } else if (itemId == R.id.menu_import) {
+            onMenuImport();
+            return true;
+        } else if (itemId == R.id.menu_delete) {
+            onMenuDelete();
+            return true;
         }
         return super.onOptionsItemSelected(item);
     }
@@ -188,6 +215,115 @@ private void onMenuJunk(boolean junk) {
                 : new ArrayList<>());
     }
 
+    private void onMenuImport() {
+        final Context context = getContext();
+        PackageManager pm = context.getPackageManager();
+
+        Intent open = new Intent(Intent.ACTION_GET_CONTENT);
+        open.addCategory(Intent.CATEGORY_OPENABLE);
+        open.setType("*/*");
+        if (open.resolveActivity(pm) == null)  // system whitelisted
+            ToastEx.makeText(context, R.string.title_no_saf, Toast.LENGTH_LONG).show();
+        else
+            startActivityForResult(Helper.getChooser(context, open), REQUEST_IMPORT);
+    }
+
+    private void onMenuDelete() {
+        new FragmentDelete().show(getParentFragmentManager(), "contacts:delete");
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+
+        try {
+            switch (requestCode) {
+                case REQUEST_IMPORT:
+                    if (resultCode == RESULT_OK && data != null)
+                        handleImport(data);
+                    break;
+            }
+        } catch (Throwable ex) {
+            Log.e(ex);
+        }
+    }
+
+    private void handleImport(Intent data) {
+        Uri uri = data.getData();
+
+        Bundle args = new Bundle();
+        args.putParcelable("uri", uri);
+
+        new SimpleTask<Void>() {
+            @Override
+            protected void onPreExecute(Bundle args) {
+                ToastEx.makeText(getContext(), R.string.title_executing, Toast.LENGTH_LONG).show();
+            }
+
+            @Override
+            protected Void onExecute(Context context, Bundle args) throws Throwable {
+                Uri uri = args.getParcelable("uri");
+
+                if (uri == null)
+                    throw new FileNotFoundException();
+
+                if (!"content".equals(uri.getScheme()) &&
+                        !Helper.hasPermission(context, Manifest.permission.READ_EXTERNAL_STORAGE)) {
+                    Log.w("Import uri=" + uri);
+                    throw new IllegalArgumentException(context.getString(R.string.title_no_stream));
+                }
+
+                long now = new Date().getTime();
+                DB db = DB.getInstance(context);
+                List<EntityAccount> accounts = db.account().getSynchronizingAccounts();
+
+                Log.i("Reading URI=" + uri);
+                ContentResolver resolver = context.getContentResolver();
+                try (InputStream is = new BufferedInputStream(resolver.openInputStream(uri))) {
+                    VCardReader reader = new VCardReader(is);
+                    VCard vcard;
+                    while ((vcard = reader.readNext()) != null) {
+                        List<Email> emails = vcard.getEmails();
+                        if (emails == null)
+                            continue;
+
+                        FormattedName fn = vcard.getFormattedName();
+                        String name = (fn == null) ? null : fn.getValue();
+
+                        List<Address> addresses = new ArrayList<>();
+                        for (Email email : emails) {
+                            String address = email.getValue();
+                            if (address == null)
+                                continue;
+                            addresses.add(new InternetAddress(address, name, StandardCharsets.UTF_8.name()));
+                        }
+
+                        for (EntityAccount account : accounts)
+                            EntityContact.update(context,
+                                    account.id,
+                                    addresses.toArray(new Address[0]),
+                                    EntityContact.TYPE_TO,
+                                    now);
+                    }
+                }
+
+                Log.i("Imported contacts");
+
+                return null;
+            }
+
+            @Override
+            protected void onExecuted(Bundle args, Void data) {
+                ToastEx.makeText(getContext(), R.string.title_completed, Toast.LENGTH_LONG).show();
+            }
+
+            @Override
+            protected void onException(Bundle args, Throwable ex) {
+                Log.unexpectedError(getParentFragmentManager(), ex);
+            }
+        }.execute(this, args, "setup:import");
+    }
+
     public static class FragmentDelete extends FragmentDialogBase {
         @NonNull
         @Override

app/src/main/res/menu/menu_contacts.xml

@@ -14,15 +14,20 @@
         android:title="@string/title_setup_help"
         app:showAsAction="always" />
 
-    <item
-        android:id="@+id/menu_delete"
-        android:icon="@drawable/twotone_delete_24"
-        android:title="@string/title_delete"
-        app:showAsAction="ifRoom" />
-
     <item
         android:id="@+id/menu_junk"
         android:checkable="true"
         android:icon="@drawable/twotone_report_24"
         android:title="@string/title_spam" />
+
+    <item
+        android:id="@+id/menu_import"
+        android:icon="@drawable/twotone_unarchive_24"
+        android:title="@string/title_import_contacts" />
+
+    <item
+        android:id="@+id/menu_delete"
+        android:icon="@drawable/twotone_delete_24"
+        android:title="@string/title_delete"
+        app:showAsAction="ifRoom" />
 </menu>

app/src/main/res/values/strings.xml

@@ -902,6 +902,7 @@
     <string name="title_delete_channel">Delete notification channel</string>
     <string name="title_insert_contact">Add contact</string>
     <string name="title_edit_contact">Edit contact</string>
+    <string name="title_import_contacts">Import vCards</string>
     <string name="title_create_sub_folder">Create sub folder</string>
 
     <string name="title_empty_trash_ask">Delete all trashed messages permanently?</string>

metadata/en-US/changelogs/1739.txt

@@ -4,6 +4,11 @@
 
 ### [Zanabazar](https://en.wikipedia.org/wiki/Zanabazar_junior)
 
+### Next version
+
+* Added importing of vCards into local contact database
+* Reduced memory usage
+
 ### 1.1739
 
 * Showing search index state