From 9a64dd60b00bd58debaec434fdb368b5f093621f Mon Sep 17 00:00:00 2001
From: Thomas <tschneider.ac@gmail.com>
Date: Wed, 16 Nov 2022 17:22:26 +0100
Subject: [PATCH] Open link with the app.

---
 app/src/main/AndroidManifest.xml              | 12 ++++
 .../app/fedilab/android/BaseMainActivity.java | 72 ++++++++++++++++++-
 .../app/fedilab/android/helper/Helper.java    | 29 ++++++++
 3 files changed, 112 insertions(+), 1 deletion(-)

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 1b449cdeb..e2f3019bd 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -56,6 +56,18 @@
                 <data android:mimeType="image/*" />
                 <data android:mimeType="video/*" />
             </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+                <!-- The app is a good candidate for URL in https://domain.name/@xxxxxx-->
+                <!-- It should cover every URLs for statuses but some others not related to mastodon matching this scheme -->
+                <data
+                    android:host="*"
+                    android:pathPrefix="/@"
+                    android:scheme="https" />
+            </intent-filter>
         </activity>
 
         <activity-alias
diff --git a/app/src/main/java/app/fedilab/android/BaseMainActivity.java b/app/src/main/java/app/fedilab/android/BaseMainActivity.java
index d45451134..21a9cb19a 100644
--- a/app/src/main/java/app/fedilab/android/BaseMainActivity.java
+++ b/app/src/main/java/app/fedilab/android/BaseMainActivity.java
@@ -88,6 +88,7 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
+import java.util.Objects;
 import java.util.concurrent.TimeUnit;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -998,8 +999,77 @@ public abstract class BaseMainActivity extends BaseActivity implements NetworkSt
                     Toasty.warning(BaseMainActivity.this, getString(R.string.toast_error), Toast.LENGTH_LONG).show();
                 }
             }
-        }
+        } else if (Intent.ACTION_VIEW.equals(action)) {
+            String url = intent.getDataString();
 
+            if (url == null) {
+                intent.replaceExtras(new Bundle());
+                intent.setAction("");
+                intent.setData(null);
+                intent.setFlags(0);
+                return;
+            }
+            Matcher matcher;
+            matcher = Patterns.WEB_URL.matcher(url);
+            boolean isUrl = false;
+            while (matcher.find()) {
+                isUrl = true;
+            }
+            if (!isUrl) {
+                intent.replaceExtras(new Bundle());
+                intent.setAction("");
+                intent.setData(null);
+                intent.setFlags(0);
+                return;
+            }
+            //Here we know that the intent contains a valid URL
+            if (!url.contains("medium.com")) {
+                Pattern link = Pattern.compile("https?://([\\da-z.-]+\\.[a-z.]{2,10})/(@[\\w._-]*[0-9]*)(/[0-9]+)?$");
+                Matcher matcherLink = null;
+                matcherLink = link.matcher(url);
+                if (matcherLink.find()) {
+                    if (matcherLink.group(3) != null && Objects.requireNonNull(matcherLink.group(3)).length() > 0) { //It's a toot
+                        CrossActionHelper.fetchRemoteStatus(BaseMainActivity.this, currentAccount, url, new CrossActionHelper.Callback() {
+                            @Override
+                            public void federatedStatus(Status status) {
+                                Intent intent = new Intent(BaseMainActivity.this, ContextActivity.class);
+                                intent.putExtra(Helper.ARG_STATUS, status);
+                                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                                startActivity(intent);
+                            }
+
+                            @Override
+                            public void federatedAccount(app.fedilab.android.client.entities.api.Account account) {
+                            }
+                        });
+                    } else {//It's an account
+                        CrossActionHelper.fetchRemoteAccount(BaseMainActivity.this, currentAccount, matcherLink.group(2) + "@" + matcherLink.group(1), new CrossActionHelper.Callback() {
+                            @Override
+                            public void federatedStatus(Status status) {
+                            }
+
+                            @Override
+                            public void federatedAccount(app.fedilab.android.client.entities.api.Account account) {
+                                Intent intent = new Intent(BaseMainActivity.this, ProfileActivity.class);
+                                Bundle b = new Bundle();
+                                b.putSerializable(Helper.ARG_ACCOUNT, account);
+                                intent.putExtras(b);
+                                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                                startActivity(intent);
+                            }
+                        });
+                    }
+                } else {
+                    Helper.forwardToBrowser(BaseMainActivity.this, intent);
+                }
+            } else {
+                Helper.forwardToBrowser(BaseMainActivity.this, intent);
+            }
+        }
+        intent.replaceExtras(new Bundle());
+        intent.setAction("");
+        intent.setData(null);
+        intent.setFlags(0);
     }
 
     private void manageFilters(int position) {
diff --git a/app/src/main/java/app/fedilab/android/helper/Helper.java b/app/src/main/java/app/fedilab/android/helper/Helper.java
index 3f74cd0d8..7a71a73b4 100644
--- a/app/src/main/java/app/fedilab/android/helper/Helper.java
+++ b/app/src/main/java/app/fedilab/android/helper/Helper.java
@@ -26,11 +26,13 @@ import android.app.Notification;
 import android.app.NotificationChannel;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
+import android.content.ComponentName;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.database.Cursor;
@@ -53,6 +55,7 @@ import android.os.CountDownTimer;
 import android.os.Environment;
 import android.os.Handler;
 import android.os.Looper;
+import android.os.Parcelable;
 import android.provider.MediaStore;
 import android.provider.OpenableColumns;
 import android.text.TextUtils;
@@ -1914,6 +1917,32 @@ public class Helper {
         Runtime.getRuntime().exit(0);
     }
 
+
+    public static void forwardToBrowser(Activity activity, Intent i) {
+        Intent intent = new Intent();
+        intent.setAction(android.content.Intent.ACTION_VIEW);
+        intent.setDataAndType(i.getData(), i.getType());
+        List<ResolveInfo> activities = activity.getPackageManager().queryIntentActivities(intent, 0);
+        ArrayList<Intent> targetIntents = new ArrayList<>();
+        String thisPackageName = activity.getPackageName();
+        for (ResolveInfo currentInfo : activities) {
+            String packageName = currentInfo.activityInfo.packageName;
+            if (!thisPackageName.equals(packageName)) {
+                Intent targetIntent = new Intent(android.content.Intent.ACTION_VIEW);
+                targetIntent.setDataAndType(intent.getData(), intent.getType());
+                targetIntent.setPackage(intent.getPackage());
+                targetIntent.setComponent(new ComponentName(packageName, currentInfo.activityInfo.name));
+                targetIntents.add(targetIntent);
+            }
+        }
+        if (targetIntents.size() > 0) {
+            Intent chooserIntent = Intent.createChooser(targetIntents.remove(0), activity.getString(R.string.open_with));
+            chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, targetIntents.toArray(new Parcelable[]{}));
+            activity.startActivity(chooserIntent);
+        }
+    }
+
+
     //Enum that described actions to replace inside a toot content
     public enum PatternType {
         MENTION,